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MARINE CORPS MARATHON 2025

John Kerfoot

Centreville, VA

Bib: 2282 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Gender (Male)
#0 / 17709
Masters (Masters Men)
#0 / 8330
Division (M40-44)
#0 / 2340
Race Day Weather
42°/32°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
27 ft elev
5K· 3.11 mi
10:26/mi
32:26
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
10:12/mi
1:04:07
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
10:04/mi
1:35:22
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
10:25/mi
2:14:14
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
11:29/mi
2:42:47
↑ 350.2%
30 ft elev
30K· 18.64 mi
12:11/mi
3:20:39
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
15:50/mi
4:09:52
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
16:37/mi
5:01:28
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
17:01/mi
5:24:40
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

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Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time2:14:14
Pace10:17 /mi
2nd Half
Distance13.17 mi
Time3:10:26
Pace14:28 /mi
📊Positive Split: 41.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:59:5332:2610:2632:26
10:26
-
10K
6.21 mi08:31:341:04:0710:1931:41
10:12
-0:14
15K
9.32 mi09:02:491:35:2210:1431:15
10:04
-0:08
21K
13.05 mi09:41:412:14:1410:1738:52
10:25
+0:21
25K
15.53 mi10:10:142:42:4710:2928:33
11:29
+1:04
30K
18.64 mi10:48:063:20:3910:4637:52
12:11
+0:42
35K
21.75 mi11:37:194:09:5211:2949:13
15:50
+3:39
40K
24.85 mi12:28:555:01:2812:0851:36
16:37
+0:47
Finish
26.22 mi12:52:075:24:4012:2423:12
17:01
+0:24

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

10:04 /mi

Average Pace

12:24 /mi

Slowest Pace

17:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:15

10% of race

Time at Steady Pace

2:49:24

52% of race

Time at Slower Pace

2:04:01

38% of race

Average Pace: 12:23 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi07:59:5332:2610:2632:26
10:26
#14423
10K
6.21 mi08:31:341:04:0710:1931:41
10:12
#15661
15K
9.32 mi09:02:491:35:2210:1431:15
10:04
#15362
21K
13.05 mi09:41:412:14:1410:1738:52
10:25
#15242
25K
15.53 mi10:10:142:42:4710:2928:33
11:29
#16177
30K
18.64 mi10:48:063:20:3910:4637:52
12:11
#16785
35K
21.75 mi11:37:194:09:5211:2949:13
15:50
#19374
40K
24.85 mi12:28:555:01:2812:0851:36
16:37
#21013
Finish
26.22 mi12:52:075:24:4012:2423:12
17:01
#21640
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi144239931127915083102871333
10K6.21 mi3.10 mi15661-123810656-7251373-9417060114671497
15K9.32 mi3.11 mi15362+29910477+1791354+1915083102871333
21K13.05 mi3.73 mi15242+12010407+701355-115434104531364
25K15.53 mi2.48 mi16177-93510883-4761426-7119971126181671
30K18.64 mi3.11 mi16785-60811097-2141460-3419162120441596
35K21.75 mi3.11 mi19374-258912380-12831626-16627265160712110
40K24.85 mi3.10 mi21013-163913146-7661743-11727202160212103
Finish26.22 mi1.37 mi21640-62713429-2831777-3427542162732140

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×18story building
+279ft-164ft

Overall

15083

Males

10287

M40-44

10287

5K→10K

3.1 - 6.2 mi

Top 57%
×11story building
+103ft-217ft

Overall

17060

Males

11467

M40-44

11467

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+51ft-55ft

Overall

15083

Males

10287

M40-44

10287

15K→21K

9.3 - 13.1 mi

Top 51%
×1story
+20ft-37ft

Overall

15434

Males

10453

M40-44

10453

21K→25K

13.1 - 15.5 mi

Top 66%
×2story building
+35ft-8ft

Overall

19971

Males

12618

M40-44

12618

25K→30K

15.5 - 18.6 mi

Top 64%
×2story building
+58ft-57ft

Overall

19162

Males

12044

M40-44

12044

30K→35K

18.6 - 21.8 mi

Top 91%
×2story building
+98ft-92ft

Overall

27265

Males

16071

M40-44

16071

35K→40K

21.8 - 24.9 mi

Top 91%
×2story building
+36ft-53ft

Overall

27202

Males

16021

M40-44

16021

40K→Finish

24.9 - 26.2 mi

Top 92%
×5story building
+80ft-24ft

Overall

27542

Males

16273

M40-44

16273

Passing Analysis

Category:
Athletes Passed
1422*
Passed By
8639
Net Change
-7217
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14423
5K → 10K74*1312-1238#14423#15661
10K → 15K476*177+299#15661#15362
15K → 21K426*306+120#15362#15242
21K → 25K117*1052-935#15242#16177
25K → 30K237*845-608#16177#16785
30K → 35K36*2625-2589#16785#19374
35K → 40K38*1677-1639#19374#21013
40K → Finish18*645-627#21013#21640
TOTALS1422*8639-7217

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions