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MARINE CORPS MARATHON 2025

Grace Chung

Clifton, VA

Bib: 17558 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 37%
Gender (Female)
#0 / 12338
Top 28%
Division (F25-29)
#0 / 2322
Top 39%
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
10:56/mi
33:59
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:49/mi
1:04:29
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:53/mi
1:35:11
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:51/mi
2:11:54
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:24/mi
2:35:15
↑ 350.2%
30 ft elev
30K· 18.64 mi
9:52/mi
3:05:55
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
10:22/mi
3:38:06
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:08/mi
4:09:34
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:46/mi
4:22:53
↑ 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
2:11:5410:06 /mi⚖️ balanced
2nd Half
2:10:599:57 /mi⚖️ balanced
Even split — consistent pacing between halves
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:18:3533:5910:5633:59
10:56
-
10K
6.21 mi08:49:051:04:2910:2330:30
9:49
-1:07
15K
9.32 mi09:19:471:35:1110:1330:42
9:53
+0:04
21K
13.05 mi09:56:302:11:5410:0636:43
9:51
-0:02
25K
15.53 mi10:19:512:35:1510:0023:21
9:24
-0:27
30K
18.64 mi10:50:313:05:559:5830:40
9:52
+0:28
35K
21.75 mi11:22:423:38:0610:0232:11
10:22
+0:30
40K
24.85 mi11:54:104:09:3410:0231:28
10:08
-0:14
Finish
26.22 mi12:07:294:22:5310:0213:19
9:46
-0:22

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

9:24 /mi

Average Pace

10:02 /mi

Slowest Pace

10:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:43

75% of race

Time at Steady Pace

1:06:10

25% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:02 /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 mi08:18:3533:5910:5633:59
10:56
#17707
10K
6.21 mi08:49:051:04:2910:2330:30
9:49
#16029
15K
9.32 mi09:19:471:35:1110:1330:42
9:53
#15230
21K
13.05 mi09:56:302:11:5410:0636:43
9:51
#14221
25K
15.53 mi10:19:512:35:1510:0023:21
9:24
#13437
30K
18.64 mi10:50:313:05:559:5830:40
9:52
#12614
35K
21.75 mi11:22:423:38:0610:0232:11
10:22
#12062
40K
24.85 mi11:54:104:09:3410:0231:28
10:08
#11300
Finish
26.22 mi12:07:294:22:5310:0213:19
9:46
#10947
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
5K3.11 mi3.11 mi17707593413811410043911093
10K6.21 mi3.10 mi16029+16785148+7861226+1551447244781083
15K9.32 mi3.11 mi15230+7994827+3211173+531410043911093
21K13.05 mi3.73 mi14221+10094431+3961095+78124473729947
25K15.53 mi2.48 mi13437+7844144+2871047+48106253095816
30K18.64 mi3.11 mi12614+8233853+291981+6699583024791
35K21.75 mi3.11 mi12062+5523757+96959+22105053544896
40K24.85 mi3.10 mi11300+7623556+201917+4281902812723
Finish26.22 mi1.37 mi10947+3533466+90894+2369802359636

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

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

Overall

14100

Females

4391

F25-29

4391

5K→10K

3.1 - 6.2 mi

Top 48%
×11story building
+103ft-217ft

Overall

14472

Females

4478

F25-29

4478

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+51ft-55ft

Overall

14100

Females

4391

F25-29

4391

15K→21K

9.3 - 13.1 mi

Top 41%
×1story
+20ft-37ft

Overall

12447

Females

3729

F25-29

3729

21K→25K

13.1 - 15.5 mi

Top 35%
×2story building
+35ft-8ft

Overall

10625

Females

3095

F25-29

3095

25K→30K

15.5 - 18.6 mi

Top 33%
×2story building
+58ft-57ft

Overall

9958

Females

3024

F25-29

3024

30K→35K

18.6 - 21.8 mi

Top 35%
×2story building
+98ft-92ft

Overall

10505

Females

3544

F25-29

3544

35K→40K

21.8 - 24.9 mi

Top 27%
×2story building
+36ft-53ft

Overall

8190

Females

2812

F25-29

2812

40K→Finish

24.9 - 26.2 mi

Top 23%
×5story building
+80ft-24ft

Overall

6980

Females

2359

F25-29

2359

Passing Analysis

Category:
Athletes Passed
7088*
Passed By
328
Net Change
+6760
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17707
5K → 10K1723*45+1678#17707#16029
10K → 15K857*58+799#16029#15230
15K → 21K1042*33+1009#15230#14221
21K → 25K791*7+784#14221#13437
25K → 30K853*30+823#13437#12614
30K → 35K657*105+552#12614#12062
35K → 40K801*39+762#12062#11300
40K → Finish364*11+353#11300#10947
TOTALS7088*328+6760

* 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