Finish-line training tool

Replay the run before the next one counts.

Type in the numbers off your time slip and watch the run rebuilt to scale — reaction, 60 foot, splits, and the stripe. See exactly where the round was won or lost.

Replay lab

Stage your run

Enter both lanes off the time slip — reaction time and the splits. Times are measured from the green light, exactly as printed on the ticket.

Time Slip Entry

Fields grey out automatically based on race distance.
Amber car
Teal car

Track Replay

Build a replay to see the run.
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Nothing staged yet. Enter both lanes and hit "Build replay," or try sample data.

What's next

Built in phases

This is the first build. Membership and accounts come once the core replay engine earns its keep.

01

Replay Lab

Manual time slip entry, 2D replay, win margin and trap speed. Live now.

02

Run Library

Save runs, build an opponent library, and generate a likely next run from your history.

03

Membership

Accounts and monthly billing, so runs sync across your devices.

04

Slip Scanner

Photograph a time slip and skip manual entry entirely.