raceIQ

4:05 marathon pace

Hold 9:21 per mile (5:48 per km) to run a 4:05 marathon, a time that's top 40% of US finishers.
Pace per mile
9:21
Pace per km
5:48
Halfway
2:02:30
Finish
4:05:00

Mile splits

Mile 19:21
Mile 218:41
Mile 328:02
Mile 437:23
Mile 546:43
Mile 656:04
Mile 71:05:25
Mile 81:14:45
Mile 91:24:06
Mile 101:33:27
Mile 111:42:47
Mile 121:52:08
Mile 132:01:29
Mile 142:10:49
Mile 152:20:10
Mile 162:29:31
Mile 172:38:51
Mile 182:48:12
Mile 192:57:33
Mile 203:06:53
Mile 213:16:14
Mile 223:25:35
Mile 233:34:55
Mile 243:44:16
Mile 253:53:37
Mile 264:02:57
Finish4:05:00

5K splits

5K29:02
10K58:04
15K1:27:06
20K1:56:08
Halfway2:02:30
25K2:25:10
30K2:54:11
35K3:23:13
40K3:52:15
Finish4:05:00

Even splits. Courses, hills and heat change the right pace on the day: check the heat pace calculator for a warm race.

Where 4:05 places in the marathon

Among US finishers in the race results we track, by age and gender. See all marathon times.

Where a 4:05 marathon places among US finishers by age and gender
AgeWomenMen
Under 20Top 36%Faster than 47%
20–29Top 33%Top 49%
30–39Top 32%Faster than 49%
40–49Top 31%Faster than 50%
50–59Top 23%Top 41%
60–69Top 16%Top 29%
70+Top 12%Top 12%
All agesTop 30%Top 47%
The same effort at other distances
  • 5K
    25:33
    8:13/mi
  • 10K
    53:16
    8:34/mi
  • Half marathon
    1:57:31
    8:58/mi

Predicted with Riegel's formula. Try the race time predictor.

Common questions

What pace is a 4:05 marathon?

9:21 per mile, or 5:48 per kilometer, held evenly from start to finish. That puts you through halfway in 2:02:30.

Is 4:05 a good marathon time?

A 4:05 marathon is top 40% of US finishers in the race results we track. How good it is depends on your age and gender: the table on this page shows where it places in each group.

What times at other distances match a 4:05 marathon?

By Riegel's formula, a 4:05 marathon is about the same performance as 25:33 for the 5K, 53:16 for the 10K, 1:57:31 for the half marathon. Longer predictions assume you've trained for the distance.

Does a 4:05 marathon qualify for Boston?

For 2027, 4:05 meets the Boston standard for women aged 60 and over and men aged 65 and over. Meeting it lets you apply; recent years have needed about 5 minutes under it.

Know your pace? See where it would place you. raceIQ ranks upcoming races by where you'd finish in your age group, using each race's past results.

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