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MARINE CORPS MARATHON 2025

Shannon Chaney-Whitson

West Chester, OH

Bib: 19456 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 24%
Gender (Female)
#0 / 12338
Top 16%
Masters (Masters Women)
#0 / 5451
Top 10%
Division (F40-44)
#0 / 1527
Top 15%
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
9:40/mi
30:02
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:56/mi
57:47
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:01/mi
1:25:48
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:10/mi
1:59:57
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:55/mi
2:22:06
↑ 350.2%
30 ft elev
30K· 18.64 mi
9:17/mi
2:50:57
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:23/mi
3:20:06
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
9:33/mi
3:49:47
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:30/mi
4:02:45
↑ 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
1:59:579:12 /mi⚡ faster
2nd Half
2:02:479:19 /mi+2.4%
Positive split — 2.4% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
30:029:403.11 mi30:02
9:40
-
10K
57:479:183.10 mi27:45
8:56
-0:44
15K
1:25:489:123.11 mi28:01
9:01
+0:05
21K
1:59:579:123.73 mi34:09
9:10
+0:09
25K
2:22:069:092.48 mi22:09
8:55
-0:15
30K
2:50:579:103.11 mi28:51
9:17
+0:22
35K
3:20:069:123.11 mi29:09
9:23
+0:06
40K
3:49:479:153.10 mi29:41
9:33
+0:10
Finish(26.22 mi)
4:02:459:161.37 mi12:58
9:30
-0:03
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:55 /mi

Average Pace

9:16 /mi

Slowest Pace

9:40 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:20:55

58% of race

Time at Steady Pace

1:41:50

42% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:15 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi9626259229491932424270
10K3.10 mi9323+3032453+139277+1790352342266
15K3.11 mi9257+662436+17272+591932424270
21K3.73 mi9066+1912379+57264+887342290248
25K2.48 mi8836+2302310+69257+783542214238
30K3.11 mi8418+4182199+111242+1575012046220
35K3.11 mi7904+5142108+91234+866921931200
40K3.10 mi7486+4182034+74228+661221900204
Finish(26.22 mi)1.37 mi7343+1432022+12226+259901941198

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×18story building
+279ft-164ft

Overall

9193

Females

2424

F40-44

2424

5K→10K

3.1 - 6.2 mi

Top 30%
×11story building
+103ft-217ft

Overall

9035

Females

2342

F40-44

2342

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+51ft-55ft

Overall

9193

Females

2424

F40-44

2424

15K→21K

9.3 - 13.1 mi

Top 29%
×1story
+20ft-37ft

Overall

8734

Females

2290

F40-44

2290

21K→25K

13.1 - 15.5 mi

Top 28%
×2story building
+35ft-8ft

Overall

8354

Females

2214

F40-44

2214

25K→30K

15.5 - 18.6 mi

Top 25%
×2story building
+58ft-57ft

Overall

7501

Females

2046

F40-44

2046

30K→35K

18.6 - 21.8 mi

Top 22%
×2story building
+98ft-92ft

Overall

6692

Females

1931

F40-44

1931

35K→40K

21.8 - 24.9 mi

Top 20%
×2story building
+36ft-53ft

Overall

6122

Females

1900

F40-44

1900

40K→Finish

24.9 - 26.2 mi

Top 20%
×5story building
+80ft-24ft

Overall

5990

Females

1941

F40-44

1941

Passing Analysis

Category:
Passed
3223*
Passed By
940
Net Change
+2283
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9626
5K → 10K493*190+303#9626#9323
10K → 15K246*180+66#9323#9257
15K → 21K361*170+191#9257#9066
21K → 25K324*94+230#9066#8836
25K → 30K501*83+418#8836#8418
30K → 35K600*86+514#8418#7904
35K → 40K515*97+418#7904#7486
40K → Finish183*40+143#7486#7343
TOTALS3223*940+2283

* 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