What are Splits?

Splits are the individual time markers recorded at specific intervals during a run. Instead of looking only at the total finish time, runners use splits to analyze their pacing strategy.

Common Split Intervals

• Mile Splits: Common in the US and UK.
• Kilometer Splits: The global standard for data analysis.
• 5K Splits: Used by major marathons to track progress through the race (e.g., 5k, 10k, 15k markers).

Using Splits to Improve

Analyzing your splits tells a story of your race:

1. Even Splits: Every segment was run at roughly the same pace. The sign of a disciplined runner.
2. Negative Splits: The second half was faster than the first. The gold standard for marathon racing.
3. Positive Splits / Fading: The segments got progressively slower. Usually a sign of starting too fast.

"The Split" in Track Racing

On the track, coaches often shout "Splits" every 200m or 400m to ensure athletes are hitting precise targets for speedwork.

Don't just run for the total time. Own every split along the way.