Got questions about using video delay for performance analysis? Here are the answers to the most common ones.
What exactly is video delay?
Video delay records continuously from a camera and plays back the feed on a slight time delay — anywhere from a few seconds to a few minutes. There's no start/stop recording. The camera just runs, and the screen shows what happened a moment ago. Athletes perform, then immediately see their replay.
How is that different from just filming and watching back?
Two big differences: there's nothing to press (it's fully automatic), and the feedback is almost instant. With traditional video, someone has to record, stop, find the clip, and play it. With video delay, the replay is always running. Athletes stay in their training flow rather than stopping to watch a recording.
What delay time should I use?
It depends on the activity:
- 3–5 seconds: Quick skills — a golf swing, a basketball shot, a single gymnastics element. The athlete finishes and immediately sees it.
- 10–20 seconds: Short sequences — a sprint start, a bowling approach, a short dance phrase.
- 30–60+ seconds: Longer sequences — a full gymnastics routine, a batting innings, a tactical play in team sports.
Start with 5 seconds and adjust from there. There's no wrong answer — whatever helps the learner connect what they felt with what they see.
What equipment do I need?
Minimal:
- A device with a camera (laptop, tablet, or USB webcam)
- A screen where athletes can see the replay (the same device, or a connected TV/projector for a bigger picture)
- A browser — Replay It runs entirely in the browser, so there's nothing to install
Does it work outdoors?
Yes. As long as your device can see the camera and display the screen, you're fine. Just angle the screen away from direct sunlight so athletes can actually see the replay. A tripod helps keep things stable in wind.
Can I use multiple cameras?
Yes — Replay It supports multiple delay screens, each with its own camera feed and delay time. Two cameras (front and side) is a popular setup that gives athletes a much more complete view of their technique.
Who is this useful for?
- PE teachers — for skill development, self-assessment, and peer feedback
- Sports coaches — for technique analysis and real-time corrections
- Dance instructors — for choreography review and formation checks
- Athletes training solo — for self-coaching without needing someone else to film
Is it free to try?
Yes! Replay It offers a free trial — no credit card, no downloads. Just open it in your browser and start using it.