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MARINE CORPS MARATHON 2025

James Corbin

Upton, MA

Bib: 145 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 2%
Gender (Male)
#0 / 17709
Top 4%
Masters (Masters Men)
#0 / 8330
Top 2%
Division (M45-49)
#0 / 1775
Top 2%
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
6:58/mi
21:38
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
6:41/mi
42:24
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
6:44/mi
1:03:20
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
6:55/mi
1:29:06
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
6:50/mi
1:46:05
↑ 350.2%
30 ft elev
30K· 18.64 mi
7:12/mi
2:08:28
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
7:35/mi
2:32:03
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
8:06/mi
2:57:14
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
8:37/mi
3:08:59
↑ 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
Time1:29:06
Pace6:50 /mi
2nd Half
Distance13.17 mi
Time1:39:53
Pace7:35 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:42:3421:386:5821:38
6:58
-
10K
6.21 mi08:03:2042:246:4920:46
6:41
-0:17
15K
9.32 mi08:24:161:03:206:4820:56
6:44
+0:03
21K
13.05 mi08:50:021:29:066:5025:46
6:55
+0:11
25K
15.53 mi09:07:011:46:056:5016:59
6:50
-0:05
30K
18.64 mi09:29:242:08:286:5322:23
7:12
+0:22
35K
21.75 mi09:52:592:32:036:5923:35
7:35
+0:23
40K
24.85 mi10:18:102:57:147:0825:11
8:06
+0:31
Finish
26.22 mi10:29:553:08:597:1311:45
8:37
+0:31

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

6:41 /mi

Average Pace

7:13 /mi

Slowest Pace

8:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:08:28

68% of race

Time at Slower Pace

1:00:31

32% of race

Average Pace: 7:12 /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 mi07:42:3421:386:5821:38
6:58
#372
10K
6.21 mi08:03:2042:246:4920:46
6:41
#438
15K
9.32 mi08:24:161:03:206:4820:56
6:44
#512
21K
13.05 mi08:50:021:29:066:5025:46
6:55
#536
25K
15.53 mi09:07:011:46:056:5016:59
6:50
#553
30K
18.64 mi09:29:242:08:286:5322:23
7:12
#566
35K
21.75 mi09:52:592:32:036:5923:35
7:35
#597
40K
24.85 mi10:18:102:57:147:0825:11
8:06
#652
Finish
26.22 mi10:29:553:08:597:1311:45
8:37
#721
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi37235116607(Top 2%)567(Top 3%)28(Top 2%)
10K6.21 mi3.10 mi438-66411-6019-3600(Top 2%)563(Top 3%)30(Top 2%)
15K9.32 mi3.11 mi512-74481-7022-3607(Top 2%)567(Top 3%)28(Top 2%)
21K13.05 mi3.73 mi536-24501-2022595(Top 2%)559(Top 3%)28(Top 2%)
25K15.53 mi2.48 mi553-17518-1722694(Top 2%)645(Top 4%)35(Top 2%)
30K18.64 mi3.11 mi566-13527-922793(Top 3%)710(Top 4%)46(Top 3%)
35K21.75 mi3.11 mi597-31555-2826-41112(Top 4%)938(Top 5%)72(Top 4%)
40K24.85 mi3.10 mi652-55597-4235-91766(Top 6%)1396(Top 8%)109(Top 6%)
Finish26.22 mi1.37 mi721-69653-5643-82999(Top 10%)2227(Top 13%)171(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×18story building
+279ft-164ft

Overall

607

Males

567

M45-49

567

5K→10K

3.1 - 6.2 mi

Top 2%
×11story building
+103ft-217ft

Overall

600

Males

563

M45-49

563

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+51ft-55ft

Overall

607

Males

567

M45-49

567

15K→21K

9.3 - 13.1 mi

Top 2%
×1story
+20ft-37ft

Overall

595

Males

559

M45-49

559

21K→25K

13.1 - 15.5 mi

Top 2%
×2story building
+35ft-8ft

Overall

694

Males

645

M45-49

645

25K→30K

15.5 - 18.6 mi

Top 3%
×2story building
+58ft-57ft

Overall

793

Males

710

M45-49

710

30K→35K

18.6 - 21.8 mi

Top 4%
×2story building
+98ft-92ft

Overall

1112

Males

938

M45-49

938

35K→40K

21.8 - 24.9 mi

Top 6%
×2story building
+36ft-53ft

Overall

1766

Males

1396

M45-49

1396

40K→Finish

24.9 - 26.2 mi

Top 10%
×5story building
+80ft-24ft

Overall

2999

Males

2227

M45-49

2227

Passing Analysis

Category:
Athletes Passed
84*
Passed By
433
Net Change
-349
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#372
5K → 10K470-66#372#438
10K → 15K276-74#438#512
15K → 21K15*39-24#512#536
21K → 25K825-17#536#553
25K → 30K17*30-13#553#566
30K → 35K1748-31#566#597
35K → 40K2075-55#597#652
40K → Finish1*70-69#652#721
TOTALS84*433-349

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions