Tournament livestreaming

Smartphone

Good quality in 2024+ models, easy to set up, built-in stabilisation. Connect via USB or use a dedicated app. Works well for a single mat at a small event. The main limitation is heat — long streaming sessions can cause throttling.

Webcam

Cheap, plug-and-play, no separate encoding needed. Quality is limited. Suitable for a very basic stream or as a secondary angle. Not recommended as a primary camera for a full-day event.

Action camera (GoPro, DJI etc.)

Wide angle, robust, good stabilisation. Can overheat in long sessions. Most require a capture card to connect to a computer for streaming. Good for overhead or unusual angles.

DSLR or mirrorless camera with HDMI output

Excellent image quality, interchangeable lenses. Requires a capture card (e.g. Elgato, Magewell) to connect to the encoder. Battery life is a concern for all-day events — use AC adapters. A 24–70mm or 18–55mm lens covers a full mat from the side at typical venue widths.

Camcorder / dedicated video camera

Built for long-form video, handles heat well, optical zoom without quality loss, often has XLR audio input. More expensive but the most practical choice for professional-level streaming. Sony, Panasonic and Canon all produce models in the €500–2000 range used widely in sports.

PTZ camera (Pan-Tilt-Zoom)

Remotely controlled from the encoder computer. Very useful for multi-mat events where you cannot have an operator at every camera. Can follow action automatically or be panned manually from a central control point. Higher cost but saves on staffing for large events.

NVENC (Nvidia)

Nvidia's hardware encoder, built into GeForce and Quadro GPUs. Modern Nvidia cards (RTX 3000 series and later) can run multiple simultaneous NVENC sessions with minimal performance impact on the rest of the system. This is the most widely used option for multi-mat streaming.

AMF (AMD)

AMD's equivalent hardware encoder. Available on Radeon RX and Radeon Pro cards. Quality and capabilities vary by generation — check that your specific card supports the number of simultaneous encode sessions you need.

QuickSync (Intel)

Intel's integrated GPU encoder, available on most modern Intel CPUs. Can offload encoding from the CPU, but generally lower quality than dedicated Nvidia or AMD hardware encoding. Useful as a supplementary option.

One PC per mat

The most straightforward multi-mat setup: a dedicated streaming computer per mat, each running OBS independently. Eliminates the multi-stream GPU problem entirely. Higher hardware cost but simpler to manage and more failure-isolated — one PC going down does not take other mats offline.

The most widely used streaming software. Free, open source, runs on Windows, Mac and Linux. Handles multiple camera inputs, overlays, scenes, and simultaneous recording to disk. The learning curve is moderate but there are extensive tutorials. Strongly recommended as the default choice.

Built on OBS with a simpler interface and built-in alert overlays. Good for getting started quickly. The free version covers basic streaming. The Pro version adds additional features.

Professional-grade production software for Windows. Handles many simultaneous cameras, instant replay, virtual sets, and multi-platform streaming. Used by professional sports broadcasters. Expensive but powerful for large events.

Similar feature set to OBS, slightly simpler interface. Less actively developed than OBS. Still used widely, particularly in gaming and esports.

Dedicated devices (e.g. Teradek, LiveU) that encode without needing a computer. Reliable, professional, expensive. Used by broadcast teams and federations producing high-quality streams. Beyond the budget of most club events.

The most widely accessible platform. Streams are automatically archived as videos, searchable and shareable. The free tier is suitable for most events. YouTube's ContentID system actively scans for copyrighted music — background music will get your stream muted or taken down (see copyright section below).

Good reach if your club or federation has an active Facebook following. Events and pages can go live directly. Less discoverable outside your existing audience than YouTube. Facebook also monitors for copyrighted music.

A multistreaming service that lets you broadcast simultaneously to YouTube, Facebook, Twitch, and others from a single OBS output. Useful if you want to reach multiple audiences at once. The free tier has limitations; paid plans remove them.

Professional, ad-free, high quality. Can embed the stream on your own website. No automatic copyright scanning. More expensive than YouTube/Facebook. Suitable for federations or events that want a polished, branded experience.

Primarily a gaming platform but used by some sports communities. Live streams are not permanently archived by default (VODs are kept for 14–60 days). Discovery is harder for sports content.

Background music at the venue is the primary risk

If your venue plays chart music, workout playlists, or any commercial music through the PA system, your stream will be affected. The microphone picks it up and ContentID detects it immediately. This is true even if the music is quiet or in the background.

Use royalty-free music or no music

For walk-on music, warm-up music, or any audio you play intentionally during the stream, use royalty-free tracks from libraries like Epidemic Sound, Artlist, or YouTube's own Audio Library. These are licensed for streaming. Free options are available.

Referee calls and crowd noise are fine

Natural event sounds — referee announcements, crowd cheering, mat sounds — are not copyrighted and will not trigger ContentID. The problem is specifically commercial music.

Commentary audio belongs to you

Your own commentators' voices are your content. There is no copyright issue with commentary itself. Ensure commentators do not sing or play music through their microphones.

On Facebook and Twitch, rules are similar

Facebook uses its own rights management system and also mutes or removes segments with copyrighted music. Twitch has a similar system. The problem is not unique to YouTube.

Microphone quality matters

A dedicated USB microphone (Audio-Technica AT2020, Blue Yeti, or similar) is a worthwhile investment. A headset microphone is acceptable. The built-in laptop microphone picks up background noise and typing and sounds poor.

Position the commentator away from the PA system

If the venue plays audio through a PA, the commentary microphone will pick it up. Place the commentator in a quieter position — or use a directional microphone pointed away from speakers.

Prepare participant and club names in advance

Have a list of athletes, clubs, and countries for each category. Mispronouncing names repeatedly sounds unprofessional and can be upsetting for participants and families watching.

Explain scores as they happen

For audiences unfamiliar with the sport, briefly explain what just scored and why. 'That's a waza-ari — she landed her opponent on the side with full control' is more engaging than silence.

Two commentators is better than one

Long events are exhausting to commentate alone. Two commentators can share the load, provide analysis, and maintain energy. They also need an audio mixer or a mixing software setup to combine their inputs in OBS.

YouTube chapters and timestamps

The simplest approach. After the stream, add timestamped chapter markers to the video description (e.g. '0:14:23 — 60kg Final, Athlete A vs Athlete B'). YouTube turns these into clickable chapters in the player. Free, no extra software needed, viewers can jump directly to any match.

Manual clip creation

Download the recorded stream and use video editing software to cut individual match clips, then upload each as a separate video or playlist. Time-consuming but gives each athlete their own shareable link. OBS records locally while streaming — you already have the raw footage.

Hudl

A leading sports video platform used widely in team sports. Allows clubs to upload, tag, and share video clips by match or sequence. Athletes and coaches can review footage and add annotations. Primarily team-sport focused but used by individual sports clubs.

Dartfish

Used in Olympic and professional sports including judo, wrestling, and athletics. Provides video analysis tools, slow motion, drawing tools, and clip sharing. Used by national federations and coaching teams for athlete development.

Pixellot

Automated AI-driven camera systems that film matches and can automatically produce individual match clips. The camera operates without a dedicated camera operator. Used by some national federations and leagues to produce per-match video at scale. Higher setup cost.

JudoTV (IJF)

The International Judo Federation's own streaming and video platform. Professional IJF competitions are streamed and archived here. Relevant as a reference for federations looking at how the top level handles video production and distribution.