2-hour half marathon pace

By Rai Ansar · Updated 17 October 2026 · Tables generated by this site's calculator and verified by independent automated calculation checks. How pages are made

Splits for a 2:00:00 half marathon

Even pacing holds one pace. The negative plan starts 2% slower and finishes 2% quicker: first half 1:00:36, second 59:24. Both reach 2:00:00 to the second. If you've never run one, negative splits explained shows how the shape works.

To plan a different finish time, open the split calculator with 2:00:00 filled in. For the same goal on a treadmill, the treadmill pace chart gives the speed to set.

Which pace to hold on the watch

The highlighted row is the slowest whole-second pace per mile that finishes under 2:00:00. Here the exact average rounded to the nearest second, 9:09, is also the safe pace.

Courses are measured along the shortest route a runner could take, so a GPS watch usually shows more distance than the course (USATF). If yours reads 1% long, it has to show 9:03 a mile to finish under 2:00:00 on the clock. The pace converter switches any of these paces between miles and kilometres.

Printable pace band for 2:00:00

Print this page (Ctrl+P or Cmd+P) and only the band prints, 40 × 240 mm. The printable pace band page covers the 100% print setting and the 50 mm ruler check, and makes negative-split and run/walk bands for 2:00:00.

Sub-2 on a treadmill: which setting

Two hours for 21.0975 km needs 6.555 mph (10.549 km/h). Treadmills move in steps, so the question is the first setting that finishes under two hours. In 0.1 mph steps that is 6.6 mph (1:59:11); 6.5 mph finishes in 2:01:01. The second table uses 0.1 km/h steps for machines that show km/h:

A level treadmill and an outdoor road are not the same effort. The treadmill pace chart lists every speed with its pace and finish times, and the treadmill pace converter takes any speed you type.

10K and 5K times that go with sub-2

Riegel's formula, in its usual form with the exponent 1.06, links a 2:00:00 half marathon to these times:

For shorter races the formula holds up: in 2,303 recreational runners, Vickers and Vertosick (2016) found it well calibrated for races up to the half marathon. So a 10K close to the equivalent above is a fair sign that sub-2 is in reach. The marathon row is another matter; the same study found Riegel at least 10 minutes too fast in the marathon for half of the runners, so do not base a marathon goal on a 2-hour half alone.

Common sub-2 mistakes

• Rounding to 9:10. It finishes in 2:00:10, and holding 5:42 per km finishes in 2:00:15.
• Using 21.1 km or 13.1 miles. A half marathon is 21.0975 km (13.1094 mi). A plan built on 13.1 miles runs out 0.0094 mile early and leaves about 5 seconds unaccounted for.
• Ignoring the last 0.1 mile. After mile 13 there is still 1:00 of running at goal pace; a mile-13 time of 2:00:00 is a minute too slow.
• Pacing off the watch. If your watch reads 1% long, it must show 9:03 per mile.

How the numbers are worked out

7,200 seconds over 13.1094 miles is 549.23 seconds a mile, which reads 9:09; held for the whole race, 9:09 gives 7,197 seconds, or 1:59:57. Each checkpoint is the exact elapsed time rounded to the nearest second, so no split drifts more than half a second and the last row is 2:00:00.