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MARINE CORPS MARATHON 2025

Jonathan Keslow

Rockville, MD

Bib: 37040 M

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 36%
Gender (Male)
#0 / 17709
Top 42%
Division (M35-39)
#0 / 2420
Top 44%
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
9:39/mi
29:58
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:05/mi
58:11
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:35/mi
1:27:57
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:25/mi
2:03:05
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:08/mi
2:25:46
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:02/mi
2:56:55
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
10:44/mi
3:30:17
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
11:47/mi
4:06:52
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:47/mi
4:21:34
↑ 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
Time2:03:05
Pace9:26 /mi
2nd Half
Distance13.17 mi
Time2:18:28
Pace10:31 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:20:5129:589:3929:58
9:39
-
10K
6.21 mi08:49:0458:119:2228:13
9:05
-0:34
15K
9.32 mi09:18:501:27:579:2629:46
9:35
+0:30
21K
13.05 mi09:53:582:03:059:2635:08
9:25
-0:10
25K
15.53 mi10:16:392:25:469:2322:41
9:08
-0:17
30K
18.64 mi10:47:482:56:559:2931:09
10:02
+0:54
35K
21.75 mi11:21:103:30:179:4033:22
10:44
+0:42
40K
24.85 mi11:57:454:06:529:5636:35
11:47
+1:03
Finish
26.22 mi12:12:274:21:349:5914:42
10:47
-1:00

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

9:05 /mi

Average Pace

9:59 /mi

Slowest Pace

11:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:54

19% of race

Time at Steady Pace

2:06:01

48% of race

Time at Slower Pace

1:24:39

32% of race

Average Pace: 9:59 /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.

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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 mi08:20:5129:589:3929:58
9:39
#9531
10K
6.21 mi08:49:0458:119:2228:13
9:05
#9752
15K
9.32 mi09:18:501:27:579:2629:46
9:35
#10632
21K
13.05 mi09:53:582:03:059:2635:08
9:25
#10454
25K
15.53 mi10:16:392:25:469:2322:41
9:08
#10178
30K
18.64 mi10:47:482:56:559:2931:09
10:02
#10144
35K
21.75 mi11:21:103:30:179:4033:22
10:44
#10205
40K
24.85 mi11:57:454:06:529:5636:35
11:47
#10743
Finish
26.22 mi12:12:274:21:349:5914:42
10:47
#10693
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi9531697810221242287671289
10K6.21 mi3.10 mi9752-2217161-1831054-321006673511088
15K9.32 mi3.11 mi10632-8807689-5281131-771242287671289
21K13.05 mi3.73 mi10454+1787574+1151108+231027474551083
25K15.53 mi2.48 mi10178+2767373+2011072+3694466826986
30K18.64 mi3.11 mi10144+347313+601071+11065473431067
35K21.75 mi3.11 mi10205-617225+881063+81200477541124
40K24.85 mi3.10 mi10743-5387412-1871080-171438388151262
Finish26.22 mi1.37 mi10693+507333+791067+13110156874995

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×18story building
+279ft-164ft

Overall

12422

Males

8767

M35-39

8767

5K→10K

3.1 - 6.2 mi

Top 34%
×11story building
+103ft-217ft

Overall

10066

Males

7351

M35-39

7351

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+51ft-55ft

Overall

12422

Males

8767

M35-39

8767

15K→21K

9.3 - 13.1 mi

Top 34%
×1story
+20ft-37ft

Overall

10274

Males

7455

M35-39

7455

21K→25K

13.1 - 15.5 mi

Top 31%
×2story building
+35ft-8ft

Overall

9446

Males

6826

M35-39

6826

25K→30K

15.5 - 18.6 mi

Top 35%
×2story building
+58ft-57ft

Overall

10654

Males

7343

M35-39

7343

30K→35K

18.6 - 21.8 mi

Top 40%
×2story building
+98ft-92ft

Overall

12004

Males

7754

M35-39

7754

35K→40K

21.8 - 24.9 mi

Top 48%
×2story building
+36ft-53ft

Overall

14383

Males

8815

M35-39

8815

40K→Finish

24.9 - 26.2 mi

Top 37%
×5story building
+80ft-24ft

Overall

11015

Males

6874

M35-39

6874

Passing Analysis

Category:
Athletes Passed
1896*
Passed By
3058
Net Change
-1162
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9531
5K → 10K205*426-221#9531#9752
10K → 15K48*928-880#9752#10632
15K → 21K347*169+178#10632#10454
21K → 25K356*80+276#10454#10178
25K → 30K289*255+34#10178#10144
30K → 35K326*387-61#10144#10205
35K → 40K171*709-538#10205#10743
40K → Finish154*104+50#10743#10693
TOTALS1896*3058-1162

* 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