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MARINE CORPS MARATHON 2025

Shannon Steines

Boston, MA

Bib: 21735 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Gender (Female)
#0 / 12338
Top 49%
Division (F25-29)
#0 / 2322
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
10:57/mi
34:01
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
10:23/mi
1:06:18
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
10:35/mi
1:39:10
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
10:46/mi
2:19:17
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
10:30/mi
2:45:23
↑ 350.2%
30 ft elev
30K· 18.64 mi
11:09/mi
3:20:00
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
11:20/mi
3:55:12
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
13:28/mi
4:37:02
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
12:26/mi
4:53:59
↑ 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
2:19:1710:40 /mi⚡ faster
2nd Half
2:34:4111:45 /mi+11.1%
Positive split — 11.1% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:25:3834:0110:5734:01
10:57
-
10K
6.21 mi08:57:551:06:1810:4032:17
10:23
-0:34
15K
9.32 mi09:30:471:39:1010:3832:52
10:35
+0:12
21K
13.05 mi10:10:542:19:1710:4040:07
10:46
+0:11
25K
15.53 mi10:37:002:45:2310:3926:06
10:30
-0:16
30K
18.64 mi11:11:373:20:0010:4434:37
11:09
+0:39
35K
21.75 mi11:46:493:55:1210:4935:12
11:20
+0:11
40K
24.85 mi12:28:394:37:0211:0941:50
13:28
+2:08
Finish
26.22 mi12:45:364:53:5911:1316:57
12:26
-1:02

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

10:23 /mi

Average Pace

11:13 /mi

Slowest Pace

13:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

32:17

11% of race

Time at Steady Pace

3:22:55

69% of race

Time at Slower Pace

58:47

20% of race

Average Pace: 11:13 /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 mi08:25:3834:0110:5734:01
10:57
#17792
10K
6.21 mi08:57:551:06:1810:4032:17
10:23
#18050
15K
9.32 mi09:30:471:39:1010:3832:52
10:35
#18064
21K
13.05 mi10:10:542:19:1710:4040:07
10:46
#17581
25K
15.53 mi10:37:002:45:2310:3926:06
10:30
#17169
30K
18.64 mi11:11:373:20:0010:4434:37
11:09
#16606
35K
21.75 mi11:46:493:55:1210:4935:12
11:20
#16085
40K
24.85 mi12:28:394:37:0211:0941:50
13:28
#16812
Finish
26.22 mi12:45:364:53:5911:1316:57
12:26
#16854
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
5K3.11 mi3.11 mi17792597613951834462381448
10K6.21 mi3.10 mi18050-2586081-1051416-211844362611433
15K9.32 mi3.11 mi18064-146092-111413+31834462381448
21K13.05 mi3.73 mi17581+4835879+2131369+441726058011363
25K15.53 mi2.48 mi17169+4125728+1511344+251594954281305
30K18.64 mi3.11 mi16606+5635606+1221331+131532253771294
35K21.75 mi3.11 mi16085+5215503+1031313+181432552831282
40K24.85 mi3.10 mi16812-7275969-4661406-931975579061737
Finish26.22 mi1.37 mi16854-426021-521433-271730168611609

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×18story building
+279ft-164ft

Overall

18344

Females

6238

F25-29

6238

5K→10K

3.1 - 6.2 mi

Top 61%
×11story building
+103ft-217ft

Overall

18443

Females

6261

F25-29

6261

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+51ft-55ft

Overall

18344

Females

6238

F25-29

6238

15K→21K

9.3 - 13.1 mi

Top 57%
×1story
+20ft-37ft

Overall

17260

Females

5801

F25-29

5801

21K→25K

13.1 - 15.5 mi

Top 53%
×2story building
+35ft-8ft

Overall

15949

Females

5428

F25-29

5428

25K→30K

15.5 - 18.6 mi

Top 51%
×2story building
+58ft-57ft

Overall

15322

Females

5377

F25-29

5377

30K→35K

18.6 - 21.8 mi

Top 48%
×2story building
+98ft-92ft

Overall

14325

Females

5283

F25-29

5283

35K→40K

21.8 - 24.9 mi

Top 66%
×2story building
+36ft-53ft

Overall

19755

Females

7906

F25-29

7906

40K→Finish

24.9 - 26.2 mi

Top 58%
×5story building
+80ft-24ft

Overall

17301

Females

6861

F25-29

6861

Passing Analysis

Category:
Athletes Passed
3598*
Passed By
2660
Net Change
+938
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17792
5K → 10K330*588-258#17792#18050
10K → 15K399*413-14#18050#18064
15K → 21K710*227+483#18064#17581
21K → 25K530*118+412#17581#17169
25K → 30K713*150+563#17169#16606
30K → 35K662*141+521#16606#16085
35K → 40K135*862-727#16085#16812
40K → Finish119*161-42#16812#16854
TOTALS3598*2660+938

* 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