Don’t have an account?
You'll stay signed in on this browser until you log out. On a shared device, log out when you're done.
Every tool is engineered to help swimmers train smarter, race faster, and unlock elite performance.
Upload a side-on training video. Chase measures body alignment, arm symmetry and joint angles from your footage.
Improve mechanics. Reduce wasted motion.Store your personal bests, track progression, visualize performance trends and monitor growth.
Your swimming journey in one place.Analyze race videos to evaluate splits, turns and pacing throughout the race.
Discover where races are won and lost.Build your athlete profile including goals, training background, physical attributes and competitive history.
Your complete swimmer identity.Upload a swimming video to study your stroke and identify areas that may be affecting your performance.
Upload a swim video, choose the stroke, then press Analyze.
No file selectedUpload a clear, stable swim video with the swimmer fully visible.
Choose the stroke swum in the video.
Press Analyze and let the video play through to the end.
Read the measurements and observations below the video, then retest your technique over time.
Video Tip: Stable, well-lit footage with the swimmer clearly visible will produce more useful analysis than shaky or obstructed footage.
For the most useful technique feedback, use clear, stable footage where the swimmer remains visible throughout the movement.
MP4 or MOV recommended.
720p minimum. 1080p recommended.
30 fps minimum. 60 fps recommended when available.
Landscape is recommended.
A stable camera or tripod-mounted setup is preferred.
Use bright, clear footage with minimal glare.
Keep one swimmer clearly visible throughout the clip.
Use focused clips that contain enough movement to evaluate the technique.
Position the camera approximately perpendicular to the swimmer's direction.
Position the camera underwater and approximately perpendicular to the swimmer.
Keep the entire swimmer visible and avoid filming from extremely far away.
For technique analysis, one clearly visible swimmer is much more useful than a crowded pool scene.
Chase provides AI-generated performance insights for informational purposes. It is designed to complement, not replace, qualified coaching and professional guidance.
Keep your personal bests organized and see how your performances change over time.
Choose the event and course, enter your time, then Save PB.
When you achieve a faster performance, update your PB record.
Use the performance history and charts to see how your times have changed.
Compare performances over time to understand your progression across different events.
Tip: Keep your PB records accurate and consistently formatted so your performance history remains useful.
A final time tells you the result. Race analysis helps you understand the performance behind it.
Short course is a 25 m pool and long course is a 50 m pool. Choosing a course selects that pool length below; change it if your pool is different.
Pause the video just before the start, while the swimmer is still. Choose Mark Pre-Start Frame & Lane Position, then click the swimmer. Movement before this frame is ignored.
Internal readings from the automatic analysis, for troubleshooting.
Record splits yourself while the video plays. This is separate from the automatic analysis and doesn't change its results. Play, Pause and Reset control the video; each split is the video's current time.
Choose the event, course and pool length.
Upload a video of the race.
Pause just before the start, choose Mark Pre-Start Frame & Lane Position, then click the swimmer.
Choose Start Automatic Analysis and review your splits.
Tip: Accurate split data makes race comparisons much more useful. Keep your entries consistent when tracking performances over time.
For race analysis, full-race footage is ideal when available. If that is not possible, focused clips can still be useful.
Keep your swimmer details in one place. They appear on your athlete overview card.
Fill in your details below, then choose Save Profile.
Fill in your basic info, swimming profile, physical data, training and goals.
Choose Save Profile to keep your changes.
Update your profile as your goals, training, or performance change.
Answer a few quick questions about fatigue, sleep, and readiness to generate a personalized meet-prep plan.
Tap an area to mark soreness, and tap it again to raise the level: light, then moderate, then high, then back to none. Front and Back switch the view; Reset clears every area. With a keyboard, Tab to an area and press Enter or Space.
Enter days until your meet, fatigue, sleep, soreness and mental readiness.
Use the body map to flag any areas that need attention.
Review your personalized plan and adjust training and recovery accordingly.