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MARINE CORPS MARATHON 2025

Sun Oh Chung

Fairfax, VA

Bib: 6048 M

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 19%
Gender (Male)
#0 / 17709
Top 24%
Division (M25-29)
#0 / 2720
Top 32%
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
9:31/mi
29:33
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:43/mi
56:39
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:48/mi
1:23:59
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:11/mi
1:54:29
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:08/mi
2:14:43
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:27/mi
2:40:59
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:13/mi
3:09:37
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
9:55/mi
3:40:27
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:14/mi
3:54:25
↑ 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
1:54:298:46 /mi⚡ faster
2nd Half
1:59:569:06 /mi+4.8%
Positive split — 4.8% 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 mi08:21:0429:339:3129:33
9:31
-
10K
6.21 mi08:48:1056:399:0727:06
8:43
-0:48
15K
9.32 mi09:15:301:23:599:0127:20
8:48
+0:05
21K
13.05 mi09:46:001:54:298:4630:30
8:11
-0:37
25K
15.53 mi10:06:142:14:438:4020:14
8:08
-0:03
30K
18.64 mi10:32:302:40:598:3826:16
8:27
+0:19
35K
21.75 mi11:01:083:09:378:4328:38
9:13
+0:46
40K
24.85 mi11:31:583:40:278:5230:50
9:55
+0:42
Finish
26.22 mi11:45:563:54:258:5713:58
10:14
+0:19

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

8:08 /mi

Average Pace

8:57 /mi

Slowest Pace

10:14 /mi

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Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

50:44

22% of race

Time at Steady Pace

1:20:42

34% of race

Time at Slower Pace

1:42:59

44% of race

Average Pace: 8:56 /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 mi08:21:0429:339:3129:33
9:31
#8715
10K
6.21 mi08:48:1056:399:0727:06
8:43
#8142
15K
9.32 mi09:15:301:23:599:0127:20
8:48
#7947
21K
13.05 mi09:46:001:54:298:4630:30
8:11
#6254
25K
15.53 mi10:06:142:14:438:4020:14
8:08
#5781
30K
18.64 mi10:32:302:40:598:3826:16
8:27
#5228
35K
21.75 mi11:01:083:09:378:4328:38
9:13
#5199
40K
24.85 mi11:31:583:40:278:5230:50
9:55
#5413
Finish
26.22 mi11:45:563:54:258:5713:58
10:14
#5580
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi871564541296773657991211
10K6.21 mi3.10 mi8142+5736084+3701244+52755657191176
15K9.32 mi3.11 mi7947+1955953+1311224+20773657991211
21K13.05 mi3.73 mi6254+16934825+11281015+20935692893643
25K15.53 mi2.48 mi5781+4734487+338951+6440863226706
30K18.64 mi3.11 mi5228+5534061+426864+8737332926652
35K21.75 mi3.11 mi5199+293981+80834+3059744331917
40K24.85 mi3.10 mi5413-2144062-81853-19748849921029
Finish26.22 mi1.37 mi5580-1674158-96879-26892357261201

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×18story building
+279ft-164ft

Overall

7736

Males

5799

M25-29

5799

5K→10K

3.1 - 6.2 mi

Top 25%
×11story building
+103ft-217ft

Overall

7556

Males

5719

M25-29

5719

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+51ft-55ft

Overall

7736

Males

5799

M25-29

5799

15K→21K

9.3 - 13.1 mi

Top 12%
×1story
+20ft-37ft

Overall

3569

Males

2893

M25-29

2893

21K→25K

13.1 - 15.5 mi

Top 14%
×2story building
+35ft-8ft

Overall

4086

Males

3226

M25-29

3226

25K→30K

15.5 - 18.6 mi

Top 12%
×2story building
+58ft-57ft

Overall

3733

Males

2926

M25-29

2926

30K→35K

18.6 - 21.8 mi

Top 20%
×2story building
+98ft-92ft

Overall

5974

Males

4331

M25-29

4331

35K→40K

21.8 - 24.9 mi

Top 25%
×2story building
+36ft-53ft

Overall

7488

Males

4992

M25-29

4992

40K→Finish

24.9 - 26.2 mi

Top 30%
×5story building
+80ft-24ft

Overall

8923

Males

5726

M25-29

5726

Passing Analysis

Category:
Athletes Passed
4185*
Passed By
1050
Net Change
+3135
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8715
5K → 10K675*102+573#8715#8142
10K → 15K329*134+195#8142#7947
15K → 21K1694*1+1693#7947#6254
21K → 25K4829+473#6254#5781
25K → 30K560*7+553#5781#5228
30K → 35K230*201+29#5228#5199
35K → 40K163*377-214#5199#5413
40K → Finish52*219-167#5413#5580
TOTALS4185*1050+3135

* 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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Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions