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MARINE CORPS MARATHON 2025

Jason Bosslett

West Caldwell, NJ

Bib: 435 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 2%
Gender (Male)
#0 / 17709
Top 3%
Masters (Masters Men)
#0 / 8330
Top 2%
Division (M50-54)
#0 / 1638
Top 0.9%
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
7:20/mi
22:46
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
6:56/mi
44:17
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
7:01/mi
1:06:04
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
7:11/mi
1:32:51
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
6:52/mi
1:49:56
↑ 350.2%
30 ft elev
30K· 18.64 mi
7:11/mi
2:12:16
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
7:13/mi
2:34:42
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
7:18/mi
2:57:22
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
7:14/mi
3:07:14
↑ 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
Time1:32:51
Pace7:07 /mi
2nd Half
Distance13.17 mi
Time1:34:22
Pace7:10 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:43:3522:467:2022:46
7:20
-
10K
6.21 mi08:05:0644:177:0821:31
6:56
-0:24
15K
9.32 mi08:26:531:06:047:0521:47
7:01
+0:05
21K
13.05 mi08:53:401:32:517:0726:47
7:11
+0:10
25K
15.53 mi09:10:451:49:567:0517:05
6:52
-0:19
30K
18.64 mi09:33:052:12:167:0622:20
7:11
+0:19
35K
21.75 mi09:55:312:34:427:0722:26
7:13
+0:02
40K
24.85 mi10:18:112:57:227:0822:40
7:18
+0:05
Finish
26.22 mi10:28:033:07:147:099:52
7:14
-0:04

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

6:52 /mi

Average Pace

7:09 /mi

Slowest Pace

7:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:30

58% of race

Time at Steady Pace

1:17:44

42% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:08 /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 mi07:43:3522:467:2022:46
7:20
#738
10K
6.21 mi08:05:0644:177:0821:31
6:56
#773
15K
9.32 mi08:26:531:06:047:0521:47
7:01
#817
21K
13.05 mi08:53:401:32:517:0726:47
7:11
#821
25K
15.53 mi09:10:451:49:567:0517:05
6:52
#793
30K
18.64 mi09:33:052:12:167:0622:20
7:11
#764
35K
21.75 mi09:55:312:34:427:0722:26
7:13
#714
40K
24.85 mi10:18:112:57:227:0822:40
7:18
#661
Finish
26.22 mi10:28:033:07:147:099:52
7:14
#636
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi73866919897(Top 3%)814(Top 5%)26(Top 2%)
10K6.21 mi3.10 mi773-35708-3920-1859(Top 3%)783(Top 4%)27(Top 2%)
15K9.32 mi3.11 mi817-44747-3922-2897(Top 3%)814(Top 5%)26(Top 2%)
21K13.05 mi3.73 mi821-4752-522893(Top 3%)811(Top 5%)22(Top 1%)
25K15.53 mi2.48 mi793+28725+2720+2740(Top 2%)679(Top 4%)17(Top 1%)
30K18.64 mi3.11 mi764+29699+2617+3773(Top 3%)696(Top 4%)19(Top 1%)
35K21.75 mi3.11 mi714+50653+4615+2645(Top 2%)590(Top 3%)15(Top 0.9%)
40K24.85 mi3.10 mi661+53606+4715599(Top 2%)536(Top 3%)12(Top 0.7%)
Finish26.22 mi1.37 mi636+25583+2314+1492(Top 2%)437(Top 2%)8(Top 0.5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×18story building
+279ft-164ft

Overall

897

Males

814

M50-54

814

5K→10K

3.1 - 6.2 mi

Top 3%
×11story building
+103ft-217ft

Overall

859

Males

783

M50-54

783

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+51ft-55ft

Overall

897

Males

814

M50-54

814

15K→21K

9.3 - 13.1 mi

Top 3%
×1story
+20ft-37ft

Overall

893

Males

811

M50-54

811

21K→25K

13.1 - 15.5 mi

Top 2%
×2story building
+35ft-8ft

Overall

740

Males

679

M50-54

679

25K→30K

15.5 - 18.6 mi

Top 3%
×2story building
+58ft-57ft

Overall

773

Males

696

M50-54

696

30K→35K

18.6 - 21.8 mi

Top 2%
×2story building
+98ft-92ft

Overall

645

Males

590

M50-54

590

35K→40K

21.8 - 24.9 mi

Top 2%
×2story building
+36ft-53ft

Overall

599

Males

536

M50-54

536

40K→Finish

24.9 - 26.2 mi

Top 2%
×5story building
+80ft-24ft

Overall

492

Males

437

M50-54

437

Passing Analysis

Category:
Athletes Passed
290*
Passed By
188
Net Change
+102
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#738
5K → 10K1853-35#738#773
10K → 15K751-44#773#817
15K → 21K23*27-4#817#821
21K → 25K3911+28#821#793
25K → 30K48*19+29#793#764
30K → 35K6111+50#764#714
35K → 40K6310+53#714#661
40K → Finish31*6+25#661#636
TOTALS290*188+102

* 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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Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions