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Sports Race Timing Stopwatch

Time running laps, swimming sets, cycling intervals, and other athletic training sessions with precision.

Sin necesidad de registro
00:00.00
Ready

Keyboard: Space start/stop · L lap · R reset

Sports tips

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For 400m track repeats, use lap recording for each lap. The fastest/slowest lap highlighting shows consistency — top athletes vary by less than 1 second.

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Swimming sets: lap at each 100m or 200m interval. Compare lap times to identify whether you fade in the back half of long sets.

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Cycling intervals: time your power efforts (e.g., 5 × 5 minutes at threshold). The lap button captures each effort separately for analysis.

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Use the L key shortcut to record laps without breaking your focus — keep eyes on the road or track instead of fumbling with the screen.

Cómo funciona

1
Introducir
Enter your data into the tool above. Everything stays local to your browser.
2
Procesar
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descargar
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

¿Por qué usar el nuestro?

Completamente gratis — sin costes ocultos, nunca
Sin cuenta, correo ni registro requerido
Los archivos nunca salen de tu dispositivo
Sin límite de tamaño de archivo en absoluto
Sin marcas de agua en ningún resultado

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