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MARINE CORPS MARATHON 2025

Detlef Boss

Magnolia, TX

Bib: 25504 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Gender (Male)
#0 / 17709
Masters (Masters Men)
#0 / 8330
Division (M55-59)
#0 / 1294
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
14:35/mi
45:20
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
12:03/mi
1:22:47
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
12:16/mi
2:00:54
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
12:19/mi
2:46:48
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
11:57/mi
3:16:29
↑ 350.2%
30 ft elev
30K· 18.64 mi
13:42/mi
3:59:04
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
13:20/mi
4:40:31
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
15:17/mi
5:28:00
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
14:32/mi
5:47:50
↑ 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
Time2:46:48
Pace12:47 /mi
2nd Half
Distance13.17 mi
Time3:01:01
Pace13:45 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:45:1245:2014:3545:20
14:35
-
10K
6.21 mi09:22:391:22:4713:1937:27
12:03
-2:32
15K
9.32 mi10:00:462:00:5412:5838:07
12:16
+0:13
21K
13.05 mi10:46:402:46:4812:4745:54
12:19
+0:03
25K
15.53 mi11:16:213:16:2912:3929:41
11:57
-0:22
30K
18.64 mi11:58:563:59:0412:4942:35
13:42
+1:45
35K
21.75 mi12:40:234:40:3112:5441:27
13:20
-0:22
40K
24.85 mi13:27:525:28:0013:1247:29
15:17
+1:57
Finish
26.22 mi13:47:425:47:5013:1719:50
14:32
-0:45

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

11:57 /mi

Average Pace

13:17 /mi

Slowest Pace

15:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:09

43% of race

Time at Steady Pace

1:24:02

24% of race

Time at Slower Pace

1:52:39

32% of race

Average Pace: 13:16 /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 mi08:45:1245:2014:3545:20
14:35
#29967
10K
6.21 mi09:22:391:22:4713:1937:27
12:03
#28946
15K
9.32 mi10:00:462:00:5412:5838:07
12:16
#28121
21K
13.05 mi10:46:402:46:4812:4745:54
12:19
#26842
25K
15.53 mi11:16:213:16:2912:3929:41
11:57
#25982
30K
18.64 mi11:58:563:59:0412:4942:35
13:42
#25539
35K
21.75 mi12:40:234:40:3112:5441:27
13:20
#24798
40K
24.85 mi13:27:525:28:0013:1247:29
15:17
#24858
Finish
26.22 mi13:47:425:47:5013:1719:50
14:32
#24775
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi2996717737127025792(Top 86%)15912(Top 90%)1041(Top 81%)
10K6.21 mi3.10 mi28946+102117325+4121219+5126576(Top 88%)16261(Top 92%)1078(Top 84%)
15K9.32 mi3.11 mi28121+82516964+3611164+5525792(Top 86%)15912(Top 90%)1041(Top 81%)
21K13.05 mi3.73 mi26842+127916388+5761102+6223354(Top 78%)14600(Top 82%)906(Top 71%)
25K15.53 mi2.48 mi25982+86015919+4691055+4721435(Top 71%)13369(Top 75%)800(Top 62%)
30K18.64 mi3.11 mi25539+44315635+2841033+2223706(Top 79%)14334(Top 81%)924(Top 72%)
35K21.75 mi3.11 mi24798+74115173+4621003+3020940(Top 70%)12610(Top 71%)785(Top 61%)
40K24.85 mi3.10 mi24858-6015119+54994+924770(Top 82%)14634(Top 83%)972(Top 76%)
Finish26.22 mi1.37 mi24775+8315061+58988+623453(Top 78%)13918(Top 79%)897(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×18story building
+279ft-164ft

Overall

25792

Males

15912

M55-59

15912

5K→10K

3.1 - 6.2 mi

Top 88%
×11story building
+103ft-217ft

Overall

26576

Males

16261

M55-59

16261

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+51ft-55ft

Overall

25792

Males

15912

M55-59

15912

15K→21K

9.3 - 13.1 mi

Top 78%
×1story
+20ft-37ft

Overall

23354

Males

14600

M55-59

14600

21K→25K

13.1 - 15.5 mi

Top 71%
×2story building
+35ft-8ft

Overall

21435

Males

13369

M55-59

13369

25K→30K

15.5 - 18.6 mi

Top 79%
×2story building
+58ft-57ft

Overall

23706

Males

14334

M55-59

14334

30K→35K

18.6 - 21.8 mi

Top 70%
×2story building
+98ft-92ft

Overall

20940

Males

12610

M55-59

12610

35K→40K

21.8 - 24.9 mi

Top 82%
×2story building
+36ft-53ft

Overall

24770

Males

14634

M55-59

14634

40K→Finish

24.9 - 26.2 mi

Top 78%
×5story building
+80ft-24ft

Overall

23453

Males

13918

M55-59

13918

Passing Analysis

Category:
Athletes Passed
5745*
Passed By
553
Net Change
+5192
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#29967
5K → 10K1027*6+1021#29967#28946
10K → 15K841*16+825#28946#28121
15K → 21K1294*15+1279#28121#26842
21K → 25K867*7+860#26842#25982
25K → 30K560*117+443#25982#25539
30K → 35K773*32+741#25539#24798
35K → 40K240*300-60#24798#24858
40K → Finish143*60+83#24858#24775
TOTALS5745*553+5192

* 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