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MARINE CORPS MARATHON 2025

Sean O'Neill

Billerica, MA

Bib: 17838 M

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 21%
Gender (Male)
#0 / 17709
Top 26%
Division (M35-39)
#0 / 2420
Top 29%
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
9:52/mi
30:39
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:08/mi
59:03
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:09/mi
1:27:30
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:06/mi
2:01:25
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:44/mi
2:23:08
↑ 350.2%
30 ft elev
30K· 18.64 mi
9:03/mi
2:51:16
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
8:52/mi
3:18:49
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
8:51/mi
3:46:20
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
8:36/mi
3:58:04
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:01:259:18 /mi+3.9%
2nd Half
1:56:398:51 /mi✓ faster
Negative split — 3.9% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:01:1230:399:5230:39
9:52
-
10K
6.21 mi08:29:3659:039:3028:24
9:08
-0:44
15K
9.32 mi08:58:031:27:309:2328:27
9:09
+0:01
21K
13.05 mi09:31:582:01:259:1833:55
9:06
-0:03
25K
15.53 mi09:53:412:23:089:1321:43
8:44
-0:22
30K
18.64 mi10:21:492:51:169:1128:08
9:03
+0:19
35K
21.75 mi10:49:223:18:499:0927:33
8:52
-0:11
40K
24.85 mi11:16:533:46:209:0627:31
8:51
-0:01
Finish
26.22 mi11:28:373:58:049:0511:44
8:36
-0:15

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

8:36 /mi

Average Pace

9:05 /mi

Slowest Pace

9:52 /mi

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Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

3:27:25

87% of race

Time at Steady Pace

30:39

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:05 /mi

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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.

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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 mi08:01:1230:399:5230:39
9:52
#10822
10K
6.21 mi08:29:3659:039:3028:24
9:08
#10594
15K
9.32 mi08:58:031:27:309:2328:27
9:09
#10365
21K
13.05 mi09:31:582:01:259:1833:55
9:06
#9750
25K
15.53 mi09:53:412:23:089:1321:43
8:44
#9220
30K
18.64 mi10:21:492:51:169:1128:08
9:03
#8512
35K
21.75 mi10:49:223:18:499:0927:33
8:52
#7548
40K
24.85 mi11:16:533:46:209:0627:31
8:51
#6705
Finish
26.22 mi11:28:373:58:049:0511:44
8:36
#6379
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi10822778811461009373691100
10K6.21 mi3.10 mi10594+2287668+1201132+141040575861119
15K9.32 mi3.11 mi10365+2297533+1351113+191009373691100
21K13.05 mi3.73 mi9750+6157131+4021051+6283406200909
25K15.53 mi2.48 mi9220+5306773+358999+5271995399805
30K18.64 mi3.11 mi8512+7086282+491926+7362744665690
35K21.75 mi3.11 mi7548+9645560+722822+10445163357504
40K24.85 mi3.10 mi6705+8434929+631732+9036182653403
Finish26.22 mi1.37 mi6379+3264680+249696+3629782215329

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×18story building
+279ft-164ft

Overall

10093

Males

7369

M35-39

7369

5K→10K

3.1 - 6.2 mi

Top 35%
×11story building
+103ft-217ft

Overall

10405

Males

7586

M35-39

7586

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+51ft-55ft

Overall

10093

Males

7369

M35-39

7369

15K→21K

9.3 - 13.1 mi

Top 28%
×1story
+20ft-37ft

Overall

8340

Males

6200

M35-39

6200

21K→25K

13.1 - 15.5 mi

Top 24%
×2story building
+35ft-8ft

Overall

7199

Males

5399

M35-39

5399

25K→30K

15.5 - 18.6 mi

Top 21%
×2story building
+58ft-57ft

Overall

6274

Males

4665

M35-39

4665

30K→35K

18.6 - 21.8 mi

Top 15%
×2story building
+98ft-92ft

Overall

4516

Males

3357

M35-39

3357

35K→40K

21.8 - 24.9 mi

Top 12%
×2story building
+36ft-53ft

Overall

3618

Males

2653

M35-39

2653

40K→Finish

24.9 - 26.2 mi

Top 10%
×5story building
+80ft-24ft

Overall

2978

Males

2215

M35-39

2215

Passing Analysis

Category:
Athletes Passed
4915*
Passed By
472
Net Change
+4443
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10822
5K → 10K460*232+228#10822#10594
10K → 15K354*125+229#10594#10365
15K → 21K664*49+615#10365#9750
21K → 25K546*16+530#9750#9220
25K → 30K728*20+708#9220#8512
30K → 35K975*11+964#8512#7548
35K → 40K856*13+843#7548#6705
40K → Finish332*6+326#6705#6379
TOTALS4915*472+4443

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

Passing Charts

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