Analyser

Once Sport Analyser is trusted by coaches and analysts in over 100 countries around the world. Our users include professionals from elite clubs, youth academies, and amateur teams. They love Once Sport for its ease of use, 3D animated graphics, and cost-effectiveness. Please visit our Partners and Clients pages to look closely.

Clients and Partners

Absolutely! We offer a 14-day free trial with full access to the Once Sport Analyser Elite version. You can download it directly from our website or request a link—no credit card required!

Free trial

Once Sport Analyser is an all-in-one tool for tagging and organising events, adding drawings, and exporting everything as videos, stats, or projects to share. It also offers Live Analysis. Once Sport Analyser

Once Sport Telestrator is mainly for drawing and annotating videos. You can import videos, draw on them, and export the clips, but it doesn't have tagging features. Once Sport Telestrator

Once Sport Analyser is available in three versions—Elite, Pro, and Basic—each tailored to different analysis needs:

• Elite: This version offers a comprehensive suite of features, including advanced tagging, drawing, and tracking capabilities. It supports Live Analysis and allows streaming to platforms like YouTube or Twitch.
• Pro: The Pro version includes all tagging and drawing tools but is limited to two tracking features: Spotlight and Players Formation Line. It supports Live Analysis but does not offer live streaming capabilities.
• Basic: The Basic version provides full tagging functionalities with limited drawing options and includes only the Spotlight tracking tool. It does not support Live Analysis.

For more details, check our product comparison table.

Product comparison

Once Sport Telestrator is available in three versions—Elite, Pro, and Basic—each offering varying levels of drawing and tracking capabilities:

• Elite: This version provides the full range of drawing and tracking features available in the software, enabling comprehensive video analysis with advanced annotations.
• Pro: The Pro version includes all drawing functionalities but is limited to two tracking tools: Spotlight and Players Formation Line. This allows for detailed annotations with some tracking capabilities.
• Basic: The Basic version offers limited drawing features and includes only the Spotlight tracking tool, suitable for fundamental annotations and minimal tracking.

For a detailed comparison of these versions, please refer to our product comparison table. To gain a better understanding of the tracking differences among these versions, you can watch the following video:

Product comparison

Once Sport Analyser works offline, allowing you to analyse videos without an internet connection. However, you will need an internet connection to activate the trial and license.

Yes, it supports cloud analysis and allows you to import footage from multiple websites and platforms like YouTube, Google Drive, Dropbox and many more…. For optimal performance, we recommend downloading video files to your local drive.

There are no limits. You can perform as many analyses as you want.

For installation help on macOS, watch our tutorial video below:

You can find Windows installation tutorial in video below:

To ensure optimal performance when using Once Sport Analyser, your system should meet the following requirements:

• Operating System:
  • macOS: Sequoia or newer
  • Windows: 10 or higher
• Processor: Intel Core i5 or better
• Memory (RAM): 8 GB or more
• Additional Software: Visual C++ Basic x64 and x86 (these components will be installed automatically with Once Sport Analyser)

Meeting these specifications will help ensure a smooth and efficient experience with the software.

Yes! The beta version has been tested on Ubuntu Linux. You can request it by sending an email to us at info@once.sport .

No, it only works on computers running Windows 10 or higher and macOS Monterey or newer.

Presentation mode pops the video out into its own window — press the Presentation mode button on the video toolbar. Send that window to a second screen or a projector to show the game to your team, and double-tap it to go fullscreen.

It's also very handy during live analysis: the pop-out window keeps showing the live feed while you draw on earlier actions in the main window — so you don't have to choose between watching the game and working on it. Keyboard playback shortcuts work in the pop-out window too.

We recommend mp4 and avi formats for best performance. However, mpeg and mkv are also supported. If your video differs, consider converting it. Our blog post provides a guide: https://once.sport/blog/how-to-convert-videos/

Yes — there are two ways. You can open a still image (a photo or a screenshot) as a new project, the same way you open a video, or you can add an image into an existing project alongside your actions.

Either way, you then draw on the image with the full set of drawing tools — arrows, spotlights, areas, text and the rest — and export the telestrated image when you're done.

Yes. You can export videos from Once Sport Analyser to your computer and then share or upload them to any service you prefer, including Dropbox or Google Drive. This way, players can access their videos and all resources in one place.

Yes, Once Sport Analyser supports XML and CSV files from platforms like Once Sport, Wyscout, Sportscode, and Dartfish. We are constantly adding more support. Check the video below to see how it works:

Yes, you can use Vikon for video conversion. Check out how to use the free video converter in Once Sport Analyser in the video below:

This usually means Windows is missing a Microsoft component the app needs (Visual C++ Redistributable). The fix takes two minutes:

1. Download and install this Microsoft package: <a href="https://aka.ms/vc14/vc_redist.x64.exe">vc_redist.x64.exe</a>
2. Restart your computer.
3. Open Once Sport again.

If the installer says <strong>"already installed"</strong>, choose <strong>Repair</strong> instead, then restart.

Still not working? Go to <strong>Settings > Apps > Installed apps</strong>, uninstall every <em>Microsoft Visual C++ 2015-2022 Redistributable</em> (both x64 and x86), restart, install the package from the link above, and open Once Sport.

<strong>Prefer the terminal?</strong> Open Terminal as Administrator and run:

winget install -e --id Microsoft.VCRedist.2015+.x64 --accept-package-agreements --accept-source-agreements

then restart. If it still doesn't work, run the same command with <code>x86</code> instead of <code>x64</code>.

If none of this helps, <strong>contact us</strong> and we'll sort it out. info@once.sport .

There are two ways to start an analysis: Local and Cloud.

Local Analysis: Insert the video, name it, and choose your action template.
Cloud Analysis: Provide the video link, name the project, and select your action template.

You can tag actions using three methods: coded buttons, recording buttons, or hotkeys. Choose the option that best fits your analysis.

To tag players or labels, you can follow several methods:

1. Right-click on the action within the timeline and select 'add/replace labels'.
2. When in recording mode, choose the desired action and add players.
3. While the action is being recorded, you can also add players directly from the menu.

You can create actions and labels/players by opening the "Actions and Players" menu or during the analysis in "Recording Mode."

Coded Buttons: These buttons have predefined time coordinates, allowing you to tag events with just one click.

Recording Buttons: These require you to manually start and stop the recording, giving you control over the duration of the tagged event.

Go to the "Actions and Players" menu and click the hide/unhide icon.

There are three different ways to add Notes to the actions.

Right-click on the action in the timeline and select 'add a note'.
While the action is being recorded, click on the note icon from the menu on the right side.
In the recording mode, choose the desired action and add a note.

There are three different ways to add markings to the actions.

Right-click on the action in the timeline and choose either 'good', 'bad', or 'favourite'.
When in the recording mode, you can label a chosen action as 'good', 'bad', or 'favourite'.
Additionally, while the action is being recorded, click on the respective icon from the right-side menu to categorise it.

Yes, you can add Hotkeys in the "Add Actions and Players" menu, and use your keyboard to speed up the analysis process.

Yes, create a label named after the part of the pitch (e.g., "Attacking third") to see all actions in that area by using filters.

Go to the "Actions and Players" menu, create a new tab, and add actions to create a template. It is possible to create an unlimited number of new templates.

When starting an analysis, select the template you want to use in the third box.

This feature in the Once Sport Analyser allows you to open multiple projects simultaneously, including all tagged match events, labels, drawings, and more. Simply select the projects you want to combine and click the 'Open' button. This powerful tool makes it easier to identify patterns, significantly improving the quality of your analysis.

The Analysis screen in Once Sport offers a wide range of functions. Explore all the features available in Analysis Mode by watching the video example below:

In Once Sport Analyser it is possible to record unlimited number of actions at the same time, please check this video example:

You can create new actions and labels, filter and start recordings, and add different markings to active actions.

The Multitrack timeline gives you a visual overview of your whole analysis: one row for each action name (a row for "Shot", a row for "Pass"…), with a coloured bar for every tag, placed right where it happens in the game. Open it from the Settings tab on the right — click the camera-shaped button at the bottom. Hover a bar to see the action's details, use Zoom and Fit to see the whole game or zoom right in, and click a row's header to play its actions one after another.

Every bar can be edited directly: drag the middle of a bar to move the action earlier or later, drag its edge to make it longer or shorter, or select several actions and move them together. One thing to know: changes save automatically within a few seconds and can't be undone, so edit carefully.

Open the Tagged Actions tab and right-click a tag to pick what you need: Edit action (change its players, labels and note), Rename (change the display name), Replace action (re-classify it as a different action — say you tagged a Shot but it was a Pass; timing, players and note are kept), Edit duration (drag the handles to move where the clip starts and ends) or Delete.

Just tagged something wrong? Press Backspace to delete your most recent tag — you'll be asked to confirm first.

You can check out our video that will teach you all of the essentials about drawing with Once Sport Analyser. Please check video below:

Yes, you can resize elements by clicking on the Resize icon and adjusting the sliders.

Yes, you can change the text size by selecting the text, right-clicking on it, and choosing the desired font size.

To delete a single drawing, click on the "Select" icon, choose the element, and delete it by clicking the "Recycle bin" icon.
To delete all drawings in a frame, simply click on the "Recycle bin" icon and confirm by selecting "Yes."
To delete all drawings from an action, right-click on it and select "Delete Drawings."

The Chromakey feature improves your analysis by applying a visual effect that places graphic elements behind the players, making them look more natural.

Absolutely! With our player tracking feature, you can effortlessly track individual players in real-time as the video plays.

Yes, our Overlay feature allows you to add text and images without pausing the video, keeping them on screen for as long as you need.

Pause the video, click the Stopwatch tool, then click the spot where it should go. The stopwatch works as an Overlay — place it, click its Overlay button, and it stays on screen measuring elapsed time while the video plays.

The same way you can also add text (which can be static, an Overlay, or track a player) or import an image such as a logo or badge (static or Overlay).

Besides regular text on the video, you can add perspective-transformed 2D and 3D text that sits on the field surface — as if it were painted on the pitch. Because the app needs to know the field's perspective, 3D text depends on Field Mapping: the field has to be mapped first.

For sports supported by the Automapper, the app tries to map the field automatically the moment you start drawing, so the 3D text sits on the pitch right away. If the 3D text doesn't sit correctly, it means the field isn't mapped — map it by hand and the text will fall into place (see the Field Mapping questions).

The Terrain line is a line that follows the field surface — it's drawn in the pitch's perspective, as if painted on the grass, instead of flat on the screen like a regular line or arrow. That makes it perfect for showing defensive lines, offside lines or pressing zones.

Like 3D text, it depends on Field Mapping: for Automapper-supported sports the app maps the field automatically when you start drawing, and for other sports you map it by hand first.

The Block line is a specialised line for illustrating blocking and screening plays — perfect for analysing pick and roll and similar tactics. Draw it from the drawing toolbar like any other line, between the blocking player and the player being screened.

You can also change the block's angle and its size, so it shows exactly the space the block creates.

Explore all the functions in the Drawing Mode screen with this video tutorial.

Yes, you can easily create various types of playlists in the Once Sport Analyser drawing mode.

Yes. On the Playlists tab, click the + button on the playlist's header (or right-click the playlist and choose Import media) and pick a video file or image from your computer — or simply drag a file onto the playlist. On the Draw screen, you can do the same for your actions: click the + icon to import a clip or image straight into your list of actions.

The imported file is added as an action, sitting alongside your tagged clips — so you can mix match footage with a training video, a still image or an outside reference clip in the same review set.

Yes, our software can automatically recognize players on the pitch. When drawing or tracking, elements will automatically resize to fit the players, saving you time and making your work easier.

To track a player, first click on the tracking icon. Next, select the desired tool and then the player you want to track. Once selected, click the "start tracking" icon. The software will then track the player for a duration of 5 seconds.

If you notice the trajectory starts following the wrong player, simply pause the video. Adjust the tracking box to the correct position, and then click the "start tracking" icon again to resume tracking. Check video below:

Should you need to manually adjust the position of the tracking tool, pause the video first. Reposition the tracking box to the desired location, and then resume your video. Repeat this process for any frame where you wish to reposition the tracking box. Check this video:

To add a new trajectory to an existing one, pause the video and select the current tracking box. Click on the "track player" icon, and the software will seamlessly add an additional 10 seconds to the current trajectory. Please watch this video:

If you wish to stop tracking manually before the 10-second duration ends, click on the tracking icon and select the relevant tool and player. Click the "start tracking" icon, but within the 5-second span, pause the video and hit the confirm button.

To create a 100% accurate trajectory for tracking, please use the arrows in the tracking menu. Check this short tutorial:

To track Multiple Players in Once Once Sport Analyser, the workflow is pretty similar to tracking individual players, but in this case you have to create and fix more than one trajectory box. Please watch this video:

Yes. You can use a camera with a capture card, or any stream. Please check this video:

To fully utilise the live analysis feature, you'll need a live video source, which you can connect to the software via a stream link or a camera through a capture card. Here's a step-by-step guide to get started and optimise your experience:

1. Integrate Your Stream: Connect a live video source via a streaming link or capture card. This enables real-time analysis directly in our program.
2. Customise Your Stream Settings: Adjust settings like resolution and bitrate to optimise your live analysis experience. You can also specify where to save your recordings for future review.
3. Broadcast Your Live Analysis: Expand your reach by streaming directly to platforms such as YouTube or Twitch using RTMP or RTSP links.

With these simple steps, you'll be ready to analyse live video streams seamlessly and reach audiences on major streaming platforms.

1. Use a compatible cable to connect your camera to a Capture Card.
2. Plug the Capture Card into your computer.
3. Open Once Sport Analyser and select the camera source in the settings.

Once these steps are completed, your camera will be successfully connected and ready for use with the Analyser.

Here is a list of capture cards supported by Once Once Sport Analyser for Windows and for macOS:

1. Atem Mini
2. Live STreamer Cap 4K
3. Ultra Studio Recorder
4. Blackmagic Design Intensity Shuttle

Yes, you can rewind the footage in Once Sport Analyser to review and tag any missed events.

It is possible to draw in Once Once Sport Analyser without interrupting the Live Analysis. The process is the same as in post-match analysis. Please check this video:

It is possible to export in Once Sport Analyser without interrupting Live Analysis. The process is the same as in post-match analysis. Please check this video:

Yes, it is possible to pop up your Live Analysis footage into another window and watch the live footage while drawing on other actions. Please check this video:

Yes. While you run a live analysis, the app can broadcast the match footage out at the same time, so an audience can watch on YouTube, Twitch or any other RTMP platform. On the live-analysis setup form, paste your YouTube stream key (the app turns it into the right link for you) or a full RTMP/RTSP link into the Stream Key field, then start the analysis as usual — a red livestream icon lights up in the toolbar while broadcasting.

Good to know: streaming is available only in the Elite edition. Viewers see the video feed itself, not your analysis screen — the match, not your tagging and drawing. You set the key before you start, the broadcast stops when you finish the analysis, and the key isn't saved, so paste it again next time.

You can export video files both with and without any drawings. Additionally, you have the option to export your analysis as an XML file or as statistics in an Excel or Google Sheets-compatible format.

You can export video clips with or without drawings, either as a single clip or separated by events. Additionally, you can export clips into one folder or sort them into different folders based on match events. Watch this video for more details:

Yes, you can export selected actions as a single clip Check this video:

Yes, you can tag the events you're interested in and export the data as an Excel or Google Sheets file for statistical analysis. For more information, watch this video:

Yes! Check video example:

Yes, you can share your analysis with other Once Sport Analyser users by exporting it as an XML file. Simply send the XML file to the recipient, who can then import it into their program to access your analysis. Watch this example:

You can upload a single exported video to Once Sport's cloud and get a link to send — no email attachments or big file transfers. Start a video export and choose "Join into one video file", turn on "Share via link" in the export options, and let the export run. When it finishes, you get the link: copy it, share it via WhatsApp or email, or open it in the browser.

Good to know: the link works only for a single joined file (not separate files), the video must be 512 MB or smaller, and you need an internet connection for the upload. The link stays live for 14 days — after that you can export a fresh one any time. The cloud keeps your 10 most recent links, and you can see them all in the Settings tab.

Yes — exports run in the background, so you can keep tagging, drawing and reviewing while the video renders. Start the export as usual and just carry on working.

You can even queue multiple exports: start another export while the first one is still running, and they'll be processed one after another.

Field Mapping allows you to align the video view with actual pitch dimensions so you can measure static distances between players accurately.

Yes — that's the Automapper. Instead of clicking matching points yourself, open Field Mapping on a clear frame and click Automapper: the app reads the pitch lines and maps the field for you in seconds.

It needs a frame where enough of the pitch lines are visible — if it can't find them, it asks you to try another frame or map by hand. The Automapper currently works for football (soccer), American football (NFL and college) and all four basketball court types, and new field types keep being added.

Static Field Mapping maps one paused frame. The app then knows the real pitch dimensions for that moment, so you can measure real distances on that frame — for example, the gap between two players.

Dynamic Field Mapping is for measurements that move with the game: you map the pitch at regular intervals through the clip, and the tracking elements use those mapped points to keep showing and refreshing distances as the play develops — instead of a distance frozen to a single frame. Supported field types include football, basketball (FIBA, NBA, NCAA, NFHS), futsal, handball, ice hockey (IIHF, NHL), American football (NFL, NCAA, high school) and flag football.

Once a moment is mapped — with the Automapper or by hand — the app knows the real pitch dimensions behind the camera view, so it can show real distances, like the gap between two players. You can show them in metres, feet or yards.

Just pause the video on the moment you want, turn on Field Mapping from the Draw editor toolbar, map the pitch, and use a distance-measuring tool — it automatically uses your mapping.

1. Go to Main Menu → Settings to set default dimensions.
2. For the current action, open Settings in the mapping popup, enter Width × Height, and apply.
3. Units are in meters (standard football pitch width is usually 68 m, length 100–105 m).

1. On the 2D pitch diagram, click each dot/marker, then select the matching point in your video.
2. Linked points must match in color.
3. Add at least 4 pairs for basic accuracy (more pairs = better accuracy).
4. Click Accept when done.

1. Close the mapping popup by clicking the Apply button.
2. Telestration tools that use field mapping will now be active, allowing you to measure distances.

The system needs multiple reference points to correctly calculate the perspective and scale of the pitch. Fewer points reduce accuracy.

You can reopen Settings in the mapping popup and adjust the dimensions at any time before confirming. Note that the previous mapping will be reset.

Any tool that supports distance measurements or scaled tracking will use the mapped field to display real distances (in meters).

Currently, Field Mapping works only for football (soccer). More sports are under development.