Sub-1:20 Elite Club Half • Verified Endurance Pacing Table
Half Marathon (21.1 km / 13.1 mi) in 80 Minutes: Exact Pace per Km, Mile & Split Table
Interactive pacing model for running a 80-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)
3:48 /km • 6:06 /mi
Treadmill Speed & 400m Lap
15.82 km/h (9.83 mph) • 91s / 400m
1st Half vs 2nd Half Pace
3:50 → 3:45 /km
Need custom distances? Open the master Running Pace Calculator →
Official Checkpoint Split Table — Half Marathon (21.1 km / 13.1 mi) in 80 Minutes
| Checkpoint Distance | Cumulative Elapsed Time | Pace per Kilometer | Pace per Mile |
|---|---|---|---|
| 5 km | 18:58 | 3:48 /km | 6:06 /mi |
| 10 km | 37:55 | 3:48 /km | 6:06 /mi |
| 15 km | 56:53 | 3:48 /km | 6:06 /mi |
| 20 km | 1:15:50 | 3:48 /km | 6:06 /mi |
| 21.1 km (Half) | 1:20:00 | 3:48 /km | 6:06 /mi |
Frequently Asked Questions — Half Marathon (21.1 km / 13.1 mi) in 80 Min
What pace per km and per mile is needed for a 80-minute Half Marathon (21.1 km / 13.1 mi)?
To finish a Half Marathon (21.1 km / 13.1 mi) in 80 minutes, you must maintain an average pace of 3:48 per kilometer (6:06 per mile), which equals an average running speed of 15.82 km/h (9.83 mph) and 91 seconds per 400m track lap.
Should I run an even split or a negative split for a 80-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 3:48/km and accelerating in the final third) minimizes early lactate accumulation and glycogen depletion.