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MARINE CORPS MARATHON 2025

Ari Nathanson

Greenwood, VA

Bib: 14976 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Gender (Male)
#0 / 17709
Masters (Masters Men)
#0 / 8330
Top 50%
Division (M45-49)
#0 / 1775
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
10:33/mi
32:47
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:46/mi
1:03:08
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:54/mi
1:33:52
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:58/mi
2:11:03
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:58/mi
2:35:50
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:22/mi
3:08:01
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
11:47/mi
3:44:37
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
14:51/mi
4:30:46
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
14:33/mi
4:50:37
↑ 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
Time2:11:03
Pace10:03 /mi
2nd Half
Distance13.17 mi
Time2:39:33
Pace12:07 /mi
📊Positive Split: 21.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:10:1432:4710:3332:47
10:33
-
10K
6.21 mi08:40:351:03:0810:1030:21
9:46
-0:47
15K
9.32 mi09:11:191:33:5210:0430:44
9:54
+0:08
21K
13.05 mi09:48:302:11:0310:0337:11
9:58
+0:04
25K
15.53 mi10:13:172:35:5010:0224:47
9:58
0:00
30K
18.64 mi10:45:283:08:0110:0532:11
10:22
+0:24
35K
21.75 mi11:22:043:44:3710:2036:36
11:47
+1:25
40K
24.85 mi12:08:134:30:4610:5446:09
14:51
+3:04
Finish
26.22 mi12:28:044:50:3711:0619:51
14:33
-0:18

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

9:46 /mi

Average Pace

11:06 /mi

Slowest Pace

14:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:08:01

65% of race

Time at Slower Pace

1:42:36

35% of race

Average Pace: 11:05 /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 mi08:10:1432:4710:3332:47
10:33
#15206
10K
6.21 mi08:40:351:03:0810:1030:21
9:46
#14609
15K
9.32 mi09:11:191:33:5210:0430:44
9:54
#14377
21K
13.05 mi09:48:302:11:0310:0337:11
9:58
#13834
25K
15.53 mi10:13:172:35:5010:0224:47
9:58
#13674
30K
18.64 mi10:45:283:08:0110:0532:11
10:22
#13219
35K
21.75 mi11:22:043:44:3710:2036:36
11:47
#13610
40K
24.85 mi12:08:134:30:4610:5446:09
14:51
#15549
Finish
26.22 mi12:28:044:50:3711:0619:51
14:33
#16214
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi152061039693914171(Top 47%)9749(Top 55%)855(Top 49%)
10K6.21 mi3.10 mi14609+59710061+335906+3314174(Top 47%)9819(Top 55%)878(Top 50%)
15K9.32 mi3.11 mi14377+2329909+152885+2114171(Top 47%)9749(Top 55%)855(Top 49%)
21K13.05 mi3.73 mi13834+5439570+339846+3913051(Top 43%)9070(Top 51%)788(Top 45%)
25K15.53 mi2.48 mi13674+1609434+136838+813416(Top 45%)9132(Top 52%)813(Top 46%)
30K18.64 mi3.11 mi13219+4559081+353796+4212064(Top 40%)8135(Top 46%)701(Top 40%)
35K21.75 mi3.11 mi13610-3919192-111810-1415978(Top 53%)9937(Top 56%)898(Top 51%)
40K24.85 mi3.10 mi15549-193910164-972913-10323736(Top 79%)14038(Top 79%)1328(Top 76%)
Finish26.22 mi1.37 mi16214-66510474-310946-3323501(Top 78%)13949(Top 79%)1319(Top 75%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×18story building
+279ft-164ft

Overall

14171

Males

9749

M45-49

9749

5K→10K

3.1 - 6.2 mi

Top 47%
×11story building
+103ft-217ft

Overall

14174

Males

9819

M45-49

9819

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+51ft-55ft

Overall

14171

Males

9749

M45-49

9749

15K→21K

9.3 - 13.1 mi

Top 43%
×1story
+20ft-37ft

Overall

13051

Males

9070

M45-49

9070

21K→25K

13.1 - 15.5 mi

Top 45%
×2story building
+35ft-8ft

Overall

13416

Males

9132

M45-49

9132

25K→30K

15.5 - 18.6 mi

Top 40%
×2story building
+58ft-57ft

Overall

12064

Males

8135

M45-49

8135

30K→35K

18.6 - 21.8 mi

Top 53%
×2story building
+98ft-92ft

Overall

15978

Males

9937

M45-49

9937

35K→40K

21.8 - 24.9 mi

Top 79%
×2story building
+36ft-53ft

Overall

23736

Males

14038

M45-49

14038

40K→Finish

24.9 - 26.2 mi

Top 78%
×5story building
+80ft-24ft

Overall

23501

Males

13949

M45-49

13949

Passing Analysis

Category:
Athletes Passed
3103*
Passed By
4111
Net Change
-1008
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15206
5K → 10K769*172+597#15206#14609
10K → 15K440*208+232#14609#14377
15K → 21K665*122+543#14377#13834
21K → 25K350*190+160#13834#13674
25K → 30K576*121+455#13674#13219
30K → 35K243*634-391#13219#13610
35K → 40K41*1980-1939#13610#15549
40K → Finish19*684-665#15549#16214
TOTALS3103*4111-1008

* 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