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MARINE CORPS MARATHON 2025

Mark Osmack

Des Peres, MO

Bib: 36233 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Gender (Male)
#0 / 17709
Masters (Masters Men)
#0 / 8330
Division (M40-44)
#0 / 2340
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
12:15/mi
38:03
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
11:56/mi
1:15:08
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
11:57/mi
1:52:17
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
13:06/mi
2:41:09
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
14:06/mi
3:16:12
↑ 350.2%
30 ft elev
30K· 18.64 mi
15:26/mi
4:04:08
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
15:09/mi
4:51:12
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
15:50/mi
5:40:25
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
16:29/mi
6:02:54
↑ 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
Time2:41:09
Pace12:21 /mi
2nd Half
Distance13.17 mi
Time3:21:44
Pace15:19 /mi
📊Positive Split: 25.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:32:1238:0312:1538:03
12:15
-
10K
6.21 mi09:09:171:15:0812:0537:05
11:56
-0:19
15K
9.32 mi09:46:261:52:1712:0337:09
11:57
+0:01
21K
13.05 mi10:35:182:41:0912:2148:52
13:06
+1:09
25K
15.53 mi11:10:213:16:1212:3835:03
14:06
+1:00
30K
18.64 mi11:58:174:04:0813:0647:56
15:26
+1:20
35K
21.75 mi12:45:214:51:1213:2347:04
15:09
-0:17
40K
24.85 mi13:34:345:40:2513:4249:13
15:50
+0:41
Finish
26.22 mi13:57:036:02:5413:5122:29
16:29
+0:39

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

11:56 /mi

Average Pace

13:51 /mi

Slowest Pace

16:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:09

44% of race

Time at Steady Pace

35:03

10% of race

Time at Slower Pace

2:46:42

46% of race

Average Pace: 13:50 /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 mi08:32:1238:0312:1538:03
12:15
#25060
10K
6.21 mi09:09:171:15:0812:0537:05
11:56
#25732
15K
9.32 mi09:46:261:52:1712:0337:09
11:57
#25395
21K
13.05 mi10:35:182:41:0912:2148:52
13:06
#25481
25K
15.53 mi11:10:213:16:1212:3835:03
14:06
#25913
30K
18.64 mi11:58:174:04:0813:0647:56
15:26
#26390
35K
21.75 mi12:45:214:51:1213:2347:04
15:09
#26417
40K
24.85 mi13:34:345:40:2513:4249:13
15:50
#26439
Finish
26.22 mi13:57:036:02:5413:5122:29
16:29
#26573
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2506015573204324802(Top 83%)15435(Top 87%)2045(Top 88%)
10K6.21 mi3.10 mi25732-67215884-3112091-4826232(Top 87%)16112(Top 91%)2130(Top 91%)
15K9.32 mi3.11 mi25395+33715734+1502078+1324802(Top 83%)15435(Top 87%)2045(Top 88%)
21K13.05 mi3.73 mi25481-8615755-212087-925720(Top 86%)15748(Top 89%)2081(Top 89%)
25K15.53 mi2.48 mi25913-43215887-1322098-1127158(Top 90%)16204(Top 92%)2121(Top 91%)
30K18.64 mi3.11 mi26390-47716023-1362118-2027680(Top 92%)16381(Top 93%)2157(Top 93%)
35K21.75 mi3.11 mi26417-2715975+482105+1325874(Top 86%)15276(Top 86%)2005(Top 86%)
40K24.85 mi3.10 mi26439-2215925+502095+1025959(Top 86%)15311(Top 86%)2016(Top 87%)
Finish26.22 mi1.37 mi26573-13415981-562102-726951(Top 90%)15931(Top 90%)2100(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×18story building
+279ft-164ft

Overall

24802

Males

15435

M40-44

15435

5K→10K

3.1 - 6.2 mi

Top 87%
×11story building
+103ft-217ft

Overall

26232

Males

16112

M40-44

16112

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+51ft-55ft

Overall

24802

Males

15435

M40-44

15435

15K→21K

9.3 - 13.1 mi

Top 86%
×1story
+20ft-37ft

Overall

25720

Males

15748

M40-44

15748

21K→25K

13.1 - 15.5 mi

Top 90%
×2story building
+35ft-8ft

Overall

27158

Males

16204

M40-44

16204

25K→30K

15.5 - 18.6 mi

Top 92%
×2story building
+58ft-57ft

Overall

27680

Males

16381

M40-44

16381

30K→35K

18.6 - 21.8 mi

Top 86%
×2story building
+98ft-92ft

Overall

25874

Males

15276

M40-44

15276

35K→40K

21.8 - 24.9 mi

Top 86%
×2story building
+36ft-53ft

Overall

25959

Males

15311

M40-44

15311

40K→Finish

24.9 - 26.2 mi

Top 90%
×5story building
+80ft-24ft

Overall

26951

Males

15931

M40-44

15931

Passing Analysis

Category:
Athletes Passed
1874*
Passed By
3387
Net Change
-1513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25060
5K → 10K156*828-672#25060#25732
10K → 15K497*160+337#25732#25395
15K → 21K395*481-86#25395#25481
21K → 25K159*591-432#25481#25913
25K → 30K157*634-477#25913#26390
30K → 35K246*273-27#26390#26417
35K → 40K219*241-22#26417#26439
40K → Finish45*179-134#26439#26573
TOTALS1874*3387-1513

* 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