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MARINE CORPS MARATHON 2025

Katherine Shomsky

Grand Rapids, MI

Bib: 3961 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 16%
Gender (Female)
#0 / 12338
Top 9%
Division (F35-39)
#0 / 1413
Top 11%
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
9:00/mi
27:58
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:21/mi
53:53
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:25/mi
1:20:01
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:26/mi
1:51:26
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:16/mi
2:11:59
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:44/mi
2:39:06
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
8:49/mi
3:06:30
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
9:34/mi
3:36:12
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:44/mi
3:49:28
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

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Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time1:51:26
Pace8:32 /mi
2nd Half
Distance13.17 mi
Time1:58:02
Pace8:58 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:55:2427:589:0027:58
9:00
-
10K
6.21 mi08:21:1953:538:4025:55
8:21
-0:39
15K
9.32 mi08:47:271:20:018:3526:08
8:25
+0:04
21K
13.05 mi09:18:521:51:268:3231:25
8:26
+0:01
25K
15.53 mi09:39:252:11:598:3020:33
8:16
-0:10
30K
18.64 mi10:06:322:39:068:3227:07
8:44
+0:28
35K
21.75 mi10:33:563:06:308:3527:24
8:49
+0:05
40K
24.85 mi11:03:383:36:128:4229:42
9:34
+0:45
Finish
26.22 mi11:16:543:49:288:4513:16
9:44
+0:10

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

8:16 /mi

Average Pace

8:45 /mi

Slowest Pace

9:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:30

81% of race

Time at Steady Pace

42:58

19% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:45 /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 mi07:55:2427:589:0027:58
9:00
#5563
10K
6.21 mi08:21:1953:538:4025:55
8:21
#5388
15K
9.32 mi08:47:271:20:018:3526:08
8:25
#5295
21K
13.05 mi09:18:521:51:268:3231:25
8:26
#5008
25K
15.53 mi09:39:252:11:598:3020:33
8:16
#4878
30K
18.64 mi10:06:322:39:068:3227:07
8:44
#4727
35K
21.75 mi10:33:563:06:308:3527:24
8:49
#4512
40K
24.85 mi11:03:383:36:128:4229:42
9:34
#4595
Finish
26.22 mi11:16:543:49:288:4513:16
9:44
#4686
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
5K3.11 mi3.11 mi556312371655292(Top 18%)1138(Top 9%)160(Top 11%)
10K6.21 mi3.10 mi5388+1751163+74160+55286(Top 18%)1113(Top 9%)151(Top 11%)
15K9.32 mi3.11 mi5295+931133+30156+45292(Top 18%)1138(Top 9%)160(Top 11%)
21K13.05 mi3.73 mi5008+2871060+73148+84426(Top 15%)913(Top 7%)130(Top 9%)
25K15.53 mi2.48 mi4878+1301041+19146+24587(Top 15%)1007(Top 8%)142(Top 10%)
30K18.64 mi3.11 mi4727+1511031+10143+34739(Top 16%)1115(Top 9%)151(Top 11%)
35K21.75 mi3.11 mi4512+2151023+8146-34311(Top 14%)1096(Top 9%)140(Top 10%)
40K24.85 mi3.10 mi4595-831086-631466147(Top 20%)1909(Top 15%)226(Top 16%)
Finish26.22 mi1.37 mi4686-911143-57155-96836(Top 23%)2297(Top 19%)270(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

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

Overall

5292

Females

1138

F35-39

1138

5K→10K

3.1 - 6.2 mi

Top 18%
×11story building
+103ft-217ft

Overall

5286

Females

1113

F35-39

1113

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+51ft-55ft

Overall

5292

Females

1138

F35-39

1138

15K→21K

9.3 - 13.1 mi

Top 15%
×1story
+20ft-37ft

Overall

4426

Females

913

F35-39

913

21K→25K

13.1 - 15.5 mi

Top 15%
×2story building
+35ft-8ft

Overall

4587

Females

1007

F35-39

1007

25K→30K

15.5 - 18.6 mi

Top 16%
×2story building
+58ft-57ft

Overall

4739

Females

1115

F35-39

1115

30K→35K

18.6 - 21.8 mi

Top 14%
×2story building
+98ft-92ft

Overall

4311

Females

1096

F35-39

1096

35K→40K

21.8 - 24.9 mi

Top 20%
×2story building
+36ft-53ft

Overall

6147

Females

1909

F35-39

1909

40K→Finish

24.9 - 26.2 mi

Top 23%
×5story building
+80ft-24ft

Overall

6836

Females

2297

F35-39

2297

Passing Analysis

Category:
Athletes Passed
1822*
Passed By
945
Net Change
+877
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5563
5K → 10K340*165+175#5563#5388
10K → 15K221*128+93#5388#5295
15K → 21K330*43+287#5295#5008
21K → 25K17848+130#5008#4878
25K → 30K241*90+151#4878#4727
30K → 35K294*79+215#4727#4512
35K → 40K166*249-83#4512#4595
40K → Finish52*143-91#4595#4686
TOTALS1822*945+877

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

📊

Passing Visuals

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