ARENACALC PERFORMANCE & PROBABILITY DESK ACSM, ISSN, IPF DOTS & Fair-Odds Calibrated Formulas
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2:30 Half Marathon Finish • Verified Endurance Pacing Table

Half Marathon (21.1 km / 13.1 mi) in 150 Minutes: Exact Pace per Km, Mile & Split Table

Interactive pacing model for running a 150-minute Half Marathon (21.1 km / 13.1 mi). Adjust target minutes below to recalculate real-time kilometer, mile, and 400m track splits.

Required Pace (Per Km & Per Mile)
7:07 /km • 11:27 /mi
Treadmill Speed & 400m Lap
8.44 km/h (5.24 mph) • 171s / 400m
1st Half vs 2nd Half Pace
7:11 → 7:02 /km
Need custom distances? Open the master Running Pace Calculator →

Official Checkpoint Split Table — Half Marathon (21.1 km / 13.1 mi) in 150 Minutes

Checkpoint DistanceCumulative Elapsed TimePace per KilometerPace per Mile
5 km 35:33 7:07 /km 11:27 /mi
10 km 1:11:06 7:07 /km 11:27 /mi
15 km 1:46:39 7:07 /km 11:27 /mi
20 km 2:22:12 7:07 /km 11:27 /mi
21.1 km (Half) 2:30:00 7:07 /km 11:27 /mi

Frequently Asked Questions — Half Marathon (21.1 km / 13.1 mi) in 150 Min

What pace per km and per mile is needed for a 150-minute Half Marathon (21.1 km / 13.1 mi)?
To finish a Half Marathon (21.1 km / 13.1 mi) in 150 minutes, you must maintain an average pace of 7:07 per kilometer (11:27 per mile), which equals an average running speed of 8.44 km/h (5.24 mph) and 171 seconds per 400m track lap.
Should I run an even split or a negative split for a 150-minute Half Marathon (21.1 km / 13.1 mi)?
Exercise physiology studies show a 1% to 2% negative split (running the first half ~2–3 seconds per km slower than 7:07/km and accelerating in the final third) minimizes early lactate accumulation and glycogen depletion.