Race Clock · Web and Android

Time any sprint from one phone video

Film the run or import a clip you already have. Mark the start frame and the finish frame. Race Clock gives you the time for the whole distance and a race clock overlay video you can post to reels. One phone, no second device, and it is free to time and share on the web app and Android.

Get the Android appUse the web app (iPhone)
Sprinter running on a track

If you filmed it, you can time it.

What it does

A sprint video timer app for one phone

Race Clock is for the runs nobody timed live. Time a sprint from video after the fact, then share the run with the clock on it.

Record or import

Film the run on your phone, or pick a clip you already have in your camera roll. One phone is all it takes.

Mark start and finish

Step through the video and mark the frame where the run starts and the frame where the athlete crosses the finish. You get the time for the whole distance.

Share the clock

Export the clip with a branded race clock overlay running on it, ready for reels, stories, or the team chat.

How it works

Film, mark, share

Film or import the run

Record the sprint with the phone held still, or import a clip you filmed earlier. Any distance you can fit in one shot.

Mark two frames

Mark the start frame and the finish frame. Race Clock shows the elapsed time, so it works as a 100m timer from video or for a 30 m block start.

Share the overlay

Save the time and share the race clock overlay video. The number runs on the clip, so people see the run and the time together.

Race Clock vs Timing Gates

One phone after the run, or two devices live

Both are practice timing in the same app. Pick by how many devices you have and when you need the number.

FactorRace ClockTiming Gates
DevicesOne phoneTwo devices. The second can be Android, iPhone, or a laptop on the web app.
When you get the timeAfter the run, from the videoLive, as the athlete crosses the finish
What it timesStart to finish for the whole distance, marked by youStart to finish for the whole distance, practice grade
Best forSolo sessions, clips you already filmed, and posting the run with the clock on itRepeat reps in practice when you want the better practice time

Filming tip

Put the phone opposite the middle of the run, far enough back that the start line and the finish line are both in frame. Hold it still on a tripod or prop it up, and don't follow the runner. Film from the same spot each time so your times compare.

Phone sprint timing comparedTiming GatesAll tools

Frequently asked questions

Short answers about timing a sprint from one phone video.

Can I time a sprint with one phone?
Yes. Film the run with one phone, then mark the start and finish frames in Race Clock to get the time for the whole distance. No second device needed.
How do I time a sprint from video?
Record or import the clip, mark the frame where the run starts, then mark the frame where the athlete crosses the finish. Race Clock shows the elapsed time and can export a race clock overlay video.
Is video timing accurate enough for practice?
It is a practice estimate from your video. It works best for comparing yourself to yourself: film from the same spot and mark the frames the same way each time.
Race Clock or Timing Gates: which should I use?
Race Clock uses one phone and times the run after it happens, from video. Timing Gates use two devices to time the start and finish live, and give the better practice time when you have a second phone or a laptop.
Is Race Clock free?
Yes. Race Clock is free to time and share on the web app and the Android app. On Android, you can add your own name and logo to the share card with All Access.
Does Race Clock work on iPhone?
Yes, through the web app. Sign in at speedtrackr.com/auth/login in your iPhone browser. There is no App Store app.

Time your next run from video

One phone. Mark the start and the finish. Share the clock. Free on web and Android.

Get the Android appiPhone? Use the web app