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MARINE CORPS MARATHON 2025

Brennan Barlow

Biloxi, MS

Bib: 12 M

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 2%
Gender (Male)
#0 / 17709
Top 2%
Division (M30-34)
#0 / 2603
Top 4%
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
7:07/mi
22:07
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
6:31/mi
42:23
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
6:38/mi
1:02:58
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
6:46/mi
1:28:10
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
6:29/mi
1:44:17
↑ 350.2%
30 ft elev
30K· 18.64 mi
6:52/mi
2:05:36
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
7:08/mi
2:27:46
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
7:32/mi
2:51:09
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
8:06/mi
3:02:12
↑ 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
1:28:106:45 /mi⚡ faster
2nd Half
1:34:017:08 /mi+6.6%
Positive split — 6.6% slower 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 mi07:43:1222:077:0722:07
7:07
-
10K
6.21 mi08:03:2842:236:4920:16
6:31
-0:36
15K
9.32 mi08:24:031:02:586:4520:35
6:38
+0:07
21K
13.05 mi08:49:151:28:106:4525:12
6:46
+0:08
25K
15.53 mi09:05:221:44:176:4316:07
6:29
-0:17
30K
18.64 mi09:26:412:05:366:4421:19
6:52
+0:23
35K
21.75 mi09:48:512:27:466:4822:10
7:08
+0:16
40K
24.85 mi10:12:142:51:096:5323:23
7:32
+0:24
Finish
26.22 mi10:23:173:02:126:5711:03
8:06
+0:34

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

6:29 /mi

Average Pace

6:57 /mi

Slowest Pace

8:06 /mi

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Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

36:23

20% of race

Time at Steady Pace

1:07:06

37% of race

Time at Slower Pace

1:18:43

43% of race

Average Pace: 6:57 /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 mi07:43:1222:077:0722:07
7:07
#570
10K
6.21 mi08:03:2842:236:4920:16
6:31
#434
15K
9.32 mi08:24:031:02:586:4520:35
6:38
#425
21K
13.05 mi08:49:151:28:106:4525:12
6:46
#403
25K
15.53 mi09:05:221:44:176:4316:07
6:29
#386
30K
18.64 mi09:26:412:05:366:4421:19
6:52
#388
35K
21.75 mi09:48:512:27:466:4822:10
7:08
#417
40K
24.85 mi10:12:142:51:096:5323:23
7:32
#454
Finish
26.22 mi10:23:173:02:126:5711:03
8:06
#469
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
5K3.11 mi3.11 mi57052611442039188
10K6.21 mi3.10 mi434+136407+11989+2536634680
15K9.32 mi3.11 mi425+9398+98942039188
21K13.05 mi3.73 mi403+22378+2082+737235177
25K15.53 mi2.48 mi386+17364+1477+533131465
30K18.64 mi3.11 mi388-236478-146943795
35K21.75 mi3.11 mi417-29393-2983-5580534117
40K24.85 mi3.10 mi454-37426-3390-7851721136
Finish26.22 mi1.37 mi469-15440-1495-517071325241

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×18story building
+279ft-164ft

Overall

420

Males

391

M30-34

391

5K→10K

3.1 - 6.2 mi

Top 1%
×11story building
+103ft-217ft

Overall

366

Males

346

M30-34

346

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+51ft-55ft

Overall

420

Males

391

M30-34

391

15K→21K

9.3 - 13.1 mi

Top 1%
×1story
+20ft-37ft

Overall

372

Males

351

M30-34

351

21K→25K

13.1 - 15.5 mi

Top 1%
×2story building
+35ft-8ft

Overall

331

Males

314

M30-34

314

25K→30K

15.5 - 18.6 mi

Top 2%
×2story building
+58ft-57ft

Overall

469

Males

437

M30-34

437

30K→35K

18.6 - 21.8 mi

Top 2%
×2story building
+98ft-92ft

Overall

580

Males

534

M30-34

534

35K→40K

21.8 - 24.9 mi

Top 3%
×2story building
+36ft-53ft

Overall

851

Males

721

M30-34

721

40K→Finish

24.9 - 26.2 mi

Top 6%
×5story building
+80ft-24ft

Overall

1707

Males

1325

M30-34

1325

Passing Analysis

Category:
Athletes Passed
257*
Passed By
156
Net Change
+101
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#570
5K → 10K1437+136#570#434
10K → 15K1910+9#434#425
15K → 21K28*6+22#425#403
21K → 25K214+17#403#386
25K → 30K18*20-2#386#388
30K → 35K1241-29#388#417
35K → 40K946-37#417#454
40K → Finish7*22-15#454#469
TOTALS257*156+101

* 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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Questions or issues regarding timing data?

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Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions