The men's marathon world record pace is 2:49.9 per kilometre — that's 4:33.5 per mile, 21.20 km/h, or 13.17 mph. It was set by Sabastian Sawe on April 26, 2026 at the London Marathon, running 1:59:30 over the 42.195 km course and becoming the first person to officially break two hours in a record-eligible race. The women's world record pace is 3:04.8 per kilometre (4:57.3 per mile, 19.48 km/h), set by Ruth Chepngetich at the 2024 Chicago Marathon in 2:09:56.
This page is the breakdown — every split in kilometres and in miles, every comparison, and a sense of what those numbers actually feel like to hold for two hours straight. Figures are current as of September 2026.
The record paces at a glance
| Record | Athlete | Time | Pace per km | Pace per mile | km/h | mph |
|---|---|---|---|---|---|---|
| Men's WR | Sabastian Sawe (London 2026) | 1:59:30 | 2:49.9 | 4:33.5 | 21.20 | 13.17 |
| Women's WR | Ruth Chepngetich (Chicago 2024) | 2:09:56 | 3:04.8 | 4:57.3 | 19.48 | 12.11 |
| Women-only WR | Tigst Assefa (London 2026) | 2:15:41 | 3:12.9 | 5:10.5 | 18.66 | 11.59 |
A quick sanity check on the men's number: 1:59:30 = 7,170 seconds. Divide by 42.195 km and you get 169.92 seconds per kilometre — which is 2 minutes and 49.92 seconds, or 2:49.9/km. The 2:50/km figure you see quoted everywhere is a friendly round; the actual pace is a shade under that.
The same arithmetic for the women's record: 2:09:56 = 7,796 seconds, divided by 42.195 = 184.76 seconds per kilometre, or 3:04.8/km. (The women-only record is a separate World Athletics category for races without male pacemakers — see the women's marathon world record explained.)
What the men's record pace looks like, kilometre by kilometre
If Sabastian Sawe had run perfectly even splits in London (he didn't — more on that below), every single 1 km marker would have ticked over at exactly 2:49.9 after the previous one. Stretched across the whole race, that turns into the following cumulative times:
| Distance | Cumulative time at men's WR pace |
|---|---|
| 1 km | 0:02:50 |
| 5 km | 0:14:10 |
| 10 km | 0:28:19 |
| 15 km | 0:42:29 |
| 21.0975 km (half) | 0:59:45 |
| 25 km | 1:10:48 |
| 30 km | 1:24:58 |
| 35 km | 1:39:07 |
| 40 km | 1:53:17 |
| 42.195 km (full) | 1:59:30 |
A few things worth noticing in that table. The 5 km splits are 14:10. The 10 km splits are 28:19. Kipchoge held those splits within about two seconds for the entire INEOS 1:59 time trial in 2019; Sawe, in a real race, ran his 5 km segments anywhere between 13:42 and 14:35 — and still averaged out to the same number.
Marathon world record pace per mile
The same record, mile by mile. At 4:33.5 per mile, the cumulative times are:
| Distance | Men's WR pace (Sawe) | Women's WR pace (Chepngetich) |
|---|---|---|
| 1 mile | 4:33.5 | 4:57.3 |
| 5 miles | 22:47 | 24:47 |
| 10 miles | 45:35 | 49:33 |
| 13.1 miles (half) | 59:45 | 1:04:58 |
| 15 miles | 1:08:22 | 1:14:20 |
| 20 miles | 1:31:09 | 1:39:07 |
| 25 miles | 1:53:57 | 2:03:54 |
| 26.2 miles (full) | 1:59:30 | 2:09:56 |
For context: a 4:33 mile is roughly the pace of a very good high-school miler running a single all-out mile. Sawe ran 26 of them back to back.
What the women's record pace looks like, kilometre by kilometre
Ruth Chepngetich's 2:09:56 in Chicago works out to the same kind of mechanical breakdown:
| Distance | Cumulative time at women's WR pace |
|---|---|
| 1 km | 0:03:05 |
| 5 km | 0:15:24 |
| 10 km | 0:30:48 |
| 15 km | 0:46:11 |
| 21.0975 km (half) | 1:04:58 |
| 25 km | 1:16:59 |
| 30 km | 1:32:23 |
| 35 km | 1:47:47 |
| 40 km | 2:03:10 |
| 42.195 km (full) | 2:09:56 |
To put that number in context: a 3:04.8/km pace would win most local 10K races outright, and 30:48 through 10 km would have won the women's Olympic 10,000m at every Games of the 20th century. Sustained over 42.195 km it took 1 minute and 57 seconds off Tigst Assefa's previous record of 2:11:53 — which had itself been the largest improvement to the women's record in the modern era. Chepngetich was banned for three years in October 2025 after a positive doping test in March 2025; the record predates the test and remains official. Full timeline here.
How the records actually unfolded (the splits)
Neither record was run at a perfectly even pace, and they were shaped very differently.
Sawe in London (April 26, 2026) ran a negative split — second half faster than the first:
- First half: 60:29
- Second half: 59:01
- Net negative split: 88 seconds
Chepngetich in Chicago (October 13, 2024) ran a positive split — she went out hard and held on:
- First half: 1:04:16
- Second half: 1:05:40
- Net positive split: 84 seconds
The two records are a neat illustration of the two ways a record gets broken. Sawe banked a small reserve for 21 km and then spent it; Chepngetich ran the first half at a pace that would have been a world-class half marathon on its own and defended the lead. For more on why elite marathoners usually prefer the first approach, see how to pace a marathon.
Marathon WR pace at every common race distance
If you took the record paces and held them across other distances, here's what the splits look like. A useful gut check for how absurd the paces really are:
| Distance | Time at men's WR pace | Time at women's WR pace |
|---|---|---|
| 400 m | 1:08 | 1:14 |
| 1 mile | 4:33.5 | 4:57.3 |
| 5 km | 14:10 | 15:24 |
| 10 km | 28:19 | 30:48 |
| 15 km | 42:29 | 46:11 |
| Half marathon | 59:45 | 1:04:58 |
| 20 mi | 1:31:09 | 1:39:07 |
| Marathon | 1:59:30 | 2:09:56 |
The men's WR pace would win every U.S. high-school 5K championship outright. The women's WR pace would still finish near the front at almost every elite women's 10K on the planet. And these are marathon paces — held for two-plus hours, not 5K efforts.
How the men's WR pace compares to a recreational runner
For most people running marathons, pace conversations happen at 5:00–6:30 per kilometre. The men's WR pace lives in a completely different neighbourhood. Putting it next to recreational targets:
| Goal | Finish time | Pace per km | Slower than men's WR by |
|---|---|---|---|
| Men's WR (Sawe) | 1:59:30 | 2:49.9 | — |
| Women's WR (Chepngetich) | 2:09:56 | 3:04.8 | +14.8 s/km |
| Women-only WR (Assefa) | 2:15:41 | 3:12.9 | +23.0 s/km |
| Boston Q (M 18–34) | 3:00:00 | 4:15.9 | +1 min 26 s/km |
| Sub-3:30 marathon | 3:30:00 | 4:58.6 | +2 min 9 s/km |
| Sub-4:00 marathon | 4:00:00 | 5:41.3 | +2 min 51 s/km |
| Average recreational finish | 4:30:00 | 6:24 | +3 min 34 s/km |
| Sub-5:00 marathon | 5:00:00 | 7:06.6 | +4 min 17 s/km |
The "slower by" column is the part worth dwelling on. A sub-3-hour marathon — which is achieved by only around 4% of all marathon finishers worldwide — is run at a pace that is one and a half minutes per kilometre slower than the world record. Over 42 km, that gap compounds to about an hour.
For the full pace-to-finish-time reference, see the marathon pace chart for every pace from 4:00 to 7:00 per km.
Sub-2 marathon pace converted into other units
The marathon WR pace gets quoted in different units depending on who you ask. Here is the men's record in everything at once:
- Pace per kilometre: 2:49.9 (often rounded to 2:50)
- Pace per mile: 4:33.5 (often rounded to 4:34)
- Pace per 400 m lap: 67.97 seconds
- Pace per 100 m: 16.99 seconds
- Speed in km/h: 21.20
- Speed in mph: 13.17
- Speed in m/s: 5.89
And the women's record:
- Pace per kilometre: 3:04.8
- Pace per mile: 4:57.3
- Pace per 400 m lap: 73.9 seconds
- Pace per 100 m: 18.5 seconds
- Speed in km/h: 19.48
- Speed in mph: 12.11
- Speed in m/s: 5.41
The 16.99 seconds per 100 m number is the one that tends to land for people. The men's world record marathon pace is faster than most people can run a single 100 m — and Sawe held it for 42,195 of them in a row.
Why this pace is even possible
Three things explain how a marathon at 2:49.9/km is humanly possible in race conditions:
- A very large engine. The handful of athletes who race at this level sit at roughly 71 ml/kg/min of VO₂max, with running economy 5–10% better than national-class athletes at the same pace.
- A very high cruising threshold. Sub-2:05 marathoners hold race pace at around 83–92% of their VO₂max, while a typical recreational runner tips over their lactate threshold by 30 km.
- A very efficient shoe. Every recent marathon record — men's and women's — has been set in carbon-plated, highly cushioned racing shoes that have been measured to save around 4% of the energy cost of running. At elite pace, that's worth 2–3 minutes over 42 km.
A deeper dive on the physiology lives in inside elite marathon training: what it actually takes to run a sub-2, and the shoe story is in super shoes and the sub-2 marathon.
How the WR pace has dropped over the decades
The men's marathon WR pace has come down by roughly 80 seconds per km in 118 years. Each record-holder, and the per-km pace they were running:
| Year | Athlete | Time | Pace per km |
|---|---|---|---|
| 1908 | Johnny Hayes | 2:55:18 | 4:09 |
| 1935 | Sohn Kee-chung | 2:26:42 | 3:28 |
| 1967 | Derek Clayton | 2:09:36 | 3:04 |
| 1999 | Khalid Khannouchi | 2:05:42 | 2:59 |
| 2008 | Haile Gebrselassie | 2:03:59 | 2:56 |
| 2014 | Dennis Kimetto | 2:02:57 | 2:55 |
| 2018 | Eliud Kipchoge | 2:01:39 | 2:53 |
| 2023 | Kelvin Kiptum | 2:00:35 | 2:51.5 |
| 2026 | Sabastian Sawe | 1:59:30 | 2:49.9 |
Two patterns jump out. First, the per-km drop has got smaller and smaller as the record has moved closer to its physiological floor: about 65 seconds per km were lost between 1908 and 1967, and barely 9 seconds in the 27 years since 1999. Second, the entire post-2014 era has played out within a 5-second-per-km band — which is exactly the band where shoe technology, course choice and the depth of the East African talent pool meet.
The women's record pace has moved even faster in the modern era: Paula Radcliffe's 2:15:25 in 2003 was 3:12.6/km, Brigid Kosgei's 2:14:04 in 2019 was 3:10.6/km, Tigst Assefa's 2:11:53 in 2023 was 3:07.5/km, and Chepngetich's 2:09:56 is 3:04.8/km — nearly eight seconds per kilometre in five years.
For the full history of the record and what each record-holder did to push it, see marathon world records: the fastest humans in history.
A note on the Kipchoge 1:59:40 pace
You will see "marathon world record pace" used to describe Eliud Kipchoge's 1:59:40 from the INEOS 1:59 Challenge in Vienna on October 12, 2019. That pace works out to almost exactly 2:50 per km. It is not, however, the official marathon world record pace — the INEOS run used rotating pacemakers, a pace car, drinks delivered by bike, and a controlled loop course, none of which are permitted under World Athletics record rules.
The official record pace, until April 2026, belonged to Kelvin Kiptum's 2:00:35 in Chicago — 2:51.5 per km. Sawe's 1:59:30 in London is the first sub-2-hour pace ever recorded in legitimate race conditions, and Yomif Kejelcha's 1:59:41 (2:50.2/km) in the same race is the second. For a full breakdown of why Kipchoge's 1:59:40 didn't count, see why Kipchoge's 1:59 didn't count.
Build a pace plan you can actually run
If this page sent you down the rabbit hole of "what pace would I need to break my own goal?", the answer lives in the calculator. Pick a target time, see the per-km or per-mile pace, and tweak the splits at runpace.co. The world record pace is for Sawe and Chepngetich. The plan you actually run on race day is for you.