Open OmniCoach.ai OmniCoach uses StrokeLab data to help generate race strategy advice, training suggestions, improvement areas, performance comparisons, stroke-by-stroke insights, and race planning from your StrokeLab results.

Made for swimmers

See your swim, stroke by stroke.

Review races, save analyses, and pick up where you left off.

View saved analyses

New here? Press Start a new analysis to upload your first race.

Upload your race

A clip from the meet, the phone, or the deck cam. Whatever you've got.

Mark the details

Tap the strokes, the wall touches, and each 15 m. StrokeLab does the rest.

Read the data

Stroke rate, distance per stroke, splits, strokes per length, time to 15m, and more, ready to go.

Your analyses

Not signed in. Analyses are saved only on this device. Browser storage is limited and can be cleared, so sign in with Google to keep them synced across devices.

Sort

Tick two of the same race to compare them.

StrokeLab v22.8.2 release notes are available. What's new

Step 1 · Upload video

Start with your race video

Upload the race first. Once it loads, continue into setup.

Upload video

No video selected

Waiting for video Upload a file to continue.

Your video stays private while you work. Saved analyses store your timing marks and results, not the original video file.

Step 2 · Set up race

Set the race details

Name the analysis and set the pool, race distance and stroke. You can add official splits on the next step.

Video loaded

Analysis name

Pool length Total race length m Stroke type Swimmer Date swum

Step 3 · Official splits

Add your electronic splits (optional)

If you have the electronically-timed splits for this race, enter them here. These can be found on websites like Swimcloud, Swimstandards, or Meet Mobile. Don't have them? Skip this step.

Know your electronic 50 splits? Enter each 50 on its own, the time for that 50 (e.g. 30.2 then 31.1), not the running total. Leave any blank if you don't have them, or skip the whole step.

Step 3 · Set “take your mark”

Pause when you hear “take your mark”

This just points StrokeLab at the right part of the clip. It only needs to be roughly right, the exact moment doesn't matter.

Listen to the race audio

Press play, listen for “take your mark,” then pause after it is said. It doesn't have to be exact, StrokeLab searches the few seconds after your mark and locks onto the real start signal automatically.

No mark set yet.

Step 4 · Find the starting signal

Pick the start signal

Play the candidates and pick the one that matches the start signal. A few in a row often each catch part of the same sound, so also play the candidate right after your pick and keep whichever captures the start best. If none fit, press None of the above and set the start from first visible movement.

Starting signal candidates

Scanning…

Step 5 · Confirm before video review

Review the controls before you start

Set your playback speed, then start the review once you are ready to mark strokes and turns.

What happens in video review

Press R exactly at the end of each stroke.
Press P when they finish the length (the wall touch).
Press Space or Finish Analysis when the race is complete.

New: breast/fly turns

Press P again at the push-off.

For breaststroke and butterfly, press P at the wall touch, then press P a second time when the feet push off. StrokeLab drops the video to 0.5x between those presses, unless you are already at 0.5x or 0.25x, then returns to your selected speed. This measures the turn and keeps it out of the underwater + breakout time.

Do not worry about being perfect. On the results screen you can re-mark or delete any out-of-place strokes afterward, as long as you do it before leaving the page (the video is not stored).

Video speed i

Video review

Your video will appear here once you begin tracking.

Elapsed

0.00 s

Analytics are below

Strokes0 Elapsed0.00 s Lengths- Avg SPM-

Stroke Rate iHow fast your arms turn over, in strokes per minute.Depends

Stroke Rate by Length iAverage stroke rate for each length, using the timing-smoothed instant SPM points from the stroke-rate chart.Depends, but trend matters most

Splits iYour time for each length of the race.Lower is faster

Strokes per Length iHow many strokes you take on each length.Fewer is usually better

Underwater + breakout time by length iTime from each wall to your first stroke (the underwater plus breakout).Depends, but longer underwaters are often beneficial

Turn time by length iTime spent turning at each wall. For freestyle and backstroke it's the glide from your last stroke into the wall; for breaststroke and butterfly it's from your hands touching the wall to your feet pushing off.Lower is faster

Time to 15 m by length iTime from each wall out to the 15 m mark (start or turn, underwater and breakout).Lower is faster

Last step before results · 15 m underwater splits

Mark every 15 m crossing

On each length, scrub to the moment the swimmer's head passes the 15 m floats and mark it, one mark per length. Not sure where that is?

Where is the 15 m mark?

Speed

Marked 0 of 0 lengths

Time to 15 m by length

No need to be perfect, you can re-open this step from the results to adjust any mark.

Re-marking strokes

Re-mark selected strokes

For each selected stroke, scrub to the exact frame the hand enters the water and mark the replacement, or delete it if it should not be there at all. Use the nudge buttons for fine control. Save when you are done and your results update automatically.