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MARINE CORPS MARATHON 2025

Samuel Keim

Cambridge, MA

Bib: 16617 M

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 13%
Gender (Male)
#0 / 17709
Top 17%
Division (M20-24)
#0 / 1424
Top 28%
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
8:58/mi
27:53
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:22/mi
53:53
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:41/mi
1:20:51
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:38/mi
1:53:01
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:17/mi
2:13:36
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:39/mi
2:40:28
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
8:32/mi
3:07:00
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
8:37/mi
3:33:46
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
8:11/mi
3:44:55
↑ 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 21K⚖️ Balanced
Distance13.05 mi
Time1:53:01
Pace8:40 /mi
2nd Half⚖️ Balanced
Distance13.17 mi
Time1:51:54
Pace8:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:09:4527:538:5827:53
8:58
-
10K
6.21 mi08:35:4553:538:4026:00
8:22
-0:36
15K
9.32 mi09:02:431:20:518:4026:58
8:41
+0:19
21K
13.05 mi09:34:531:53:018:4032:10
8:38
-0:03
25K
15.53 mi09:55:282:13:368:3620:35
8:17
-0:21
30K
18.64 mi10:22:202:40:288:3626:52
8:39
+0:22
35K
21.75 mi10:48:523:07:008:3626:32
8:32
-0:07
40K
24.85 mi11:15:383:33:468:3626:46
8:37
+0:05
Finish
26.22 mi11:26:473:44:558:3511:09
8:11
-0:26

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

8:11 /mi

Average Pace

8:35 /mi

Slowest Pace

8:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:16

37% of race

Time at Steady Pace

2:20:39

63% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:35 /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 mi08:09:4527:538:5827:53
8:58
#5413
10K
6.21 mi08:35:4553:538:4026:00
8:22
#5392
15K
9.32 mi09:02:431:20:518:4026:58
8:41
#5786
21K
13.05 mi09:34:531:53:018:4032:10
8:38
#5621
25K
15.53 mi09:55:282:13:368:3620:35
8:17
#5347
30K
18.64 mi10:22:202:40:288:3626:52
8:39
#5099
35K
21.75 mi10:48:523:07:008:3626:32
8:32
#4620
40K
24.85 mi11:15:383:33:468:3626:46
8:37
#4212
Finish
26.22 mi11:26:473:44:558:3511:09
8:11
#3987
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-24Seg. OverallSeg. MalesSeg. M20-24
5K3.11 mi3.11 mi5413422450269305263605
10K6.21 mi3.10 mi5392+214228-4486+1654254275480
15K9.32 mi3.11 mi5786-3944497-269527-4169305263605
21K13.05 mi3.73 mi5621+1654381+116519+854304234511
25K15.53 mi2.48 mi5347+2744181+200494+2546493620435
30K18.64 mi3.11 mi5099+2483960+221474+2044393424410
35K21.75 mi3.11 mi4620+4793572+388428+4633072539333
40K24.85 mi3.10 mi4212+4083240+332408+2029662223296
Finish26.22 mi1.37 mi3987+2253073+167392+1618481429224

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×18story building
+279ft-164ft

Overall

6930

Males

5263

M20-24

5263

5K→10K

3.1 - 6.2 mi

Top 18%
×11story building
+103ft-217ft

Overall

5425

Males

4275

M20-24

4275

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+51ft-55ft

Overall

6930

Males

5263

M20-24

5263

15K→21K

9.3 - 13.1 mi

Top 18%
×1story
+20ft-37ft

Overall

5430

Males

4234

M20-24

4234

21K→25K

13.1 - 15.5 mi

Top 15%
×2story building
+35ft-8ft

Overall

4649

Males

3620

M20-24

3620

25K→30K

15.5 - 18.6 mi

Top 15%
×2story building
+58ft-57ft

Overall

4439

Males

3424

M20-24

3424

30K→35K

18.6 - 21.8 mi

Top 11%
×2story building
+98ft-92ft

Overall

3307

Males

2539

M20-24

2539

35K→40K

21.8 - 24.9 mi

Top 10%
×2story building
+36ft-53ft

Overall

2966

Males

2223

M20-24

2223

40K→Finish

24.9 - 26.2 mi

Top 6%
×5story building
+80ft-24ft

Overall

1848

Males

1429

M20-24

1429

Passing Analysis

Category:
Athletes Passed
2316*
Passed By
890
Net Change
+1426
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5413
5K → 10K258*237+21#5413#5392
10K → 15K48*442-394#5392#5786
15K → 21K247*82+165#5786#5621
21K → 25K30127+274#5621#5347
25K → 30K311*63+248#5347#5099
30K → 35K493*14+479#5099#4620
35K → 40K429*21+408#4620#4212
40K → Finish229*4+225#4212#3987
TOTALS2316*890+1426

* 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