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MARINE CORPS MARATHON 2025

Courtney Welch

Durham, NC

Bib: 20009 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 35%
Gender (Female)
#0 / 12338
Top 26%
Division (F30-34)
#0 / 1621
Top 30%
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
10:11/mi
31:37
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:50/mi
1:02:10
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:45/mi
1:32:27
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:48/mi
2:08:58
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:36/mi
2:32:49
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:07/mi
3:04:16
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:59/mi
3:35:17
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:05/mi
4:06:37
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:00/mi
4:20:16
↑ 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
Time2:08:58
Pace9:53 /mi
2nd Half
Distance13.17 mi
Time2:11:17
Pace9:58 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:09:2131:3710:1131:37
10:11
-
10K
6.21 mi08:39:541:02:1010:0030:33
9:50
-0:21
15K
9.32 mi09:10:111:32:279:5530:17
9:45
-0:05
21K
13.05 mi09:46:422:08:589:5336:31
9:48
+0:03
25K
15.53 mi10:10:332:32:499:5023:51
9:36
-0:12
30K
18.64 mi10:42:003:04:169:5331:27
10:07
+0:31
35K
21.75 mi11:13:013:35:179:5431:01
9:59
-0:08
40K
24.85 mi11:44:214:06:379:5531:20
10:05
+0:06
Finish
26.22 mi11:58:004:20:169:5613:39
10:00
-0:05

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

9:36 /mi

Average Pace

9:56 /mi

Slowest Pace

10:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:52

64% of race

Time at Steady Pace

1:34:24

36% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:56 /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 mi08:09:2131:3710:1131:37
10:11
#12741
10K
6.21 mi08:39:541:02:1010:0030:33
9:50
#13619
15K
9.32 mi09:10:111:32:279:5530:17
9:45
#13446
21K
13.05 mi09:46:422:08:589:5336:31
9:48
#12920
25K
15.53 mi10:10:332:32:499:5023:51
9:36
#12578
30K
18.64 mi10:42:003:04:169:5331:27
10:07
#12137
35K
21.75 mi11:13:013:35:179:5431:01
9:59
#11409
40K
24.85 mi11:44:214:06:379:5531:20
10:05
#10695
Finish
26.22 mi11:58:004:20:169:5613:39
10:00
#10459
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
5K3.11 mi3.11 mi12741378855213298(Top 44%)4029(Top 33%)589(Top 37%)
10K6.21 mi3.10 mi13619-8784151-363603-5114572(Top 48%)4522(Top 37%)654(Top 41%)
15K9.32 mi3.11 mi13446+1734094+57596+713298(Top 44%)4029(Top 33%)589(Top 37%)
21K13.05 mi3.73 mi12920+5263888+206560+3612193(Top 41%)3622(Top 29%)527(Top 33%)
25K15.53 mi2.48 mi12578+3423784+104549+1111633(Top 39%)3530(Top 29%)529(Top 33%)
30K18.64 mi3.11 mi12137+4413672+112537+1211067(Top 37%)3474(Top 28%)524(Top 32%)
35K21.75 mi3.11 mi11409+7283481+191518+199072(Top 30%)2905(Top 24%)441(Top 27%)
40K24.85 mi3.10 mi10695+7143305+176497+218036(Top 27%)2728(Top 22%)413(Top 26%)
Finish26.22 mi1.37 mi10459+2363254+51488+98004(Top 27%)2783(Top 23%)427(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×18story building
+279ft-164ft

Overall

13298

Females

4029

F30-34

4029

5K→10K

3.1 - 6.2 mi

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

Overall

14572

Females

4522

F30-34

4522

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+51ft-55ft

Overall

13298

Females

4029

F30-34

4029

15K→21K

9.3 - 13.1 mi

Top 41%
×1story
+20ft-37ft

Overall

12193

Females

3622

F30-34

3622

21K→25K

13.1 - 15.5 mi

Top 39%
×2story building
+35ft-8ft

Overall

11633

Females

3530

F30-34

3530

25K→30K

15.5 - 18.6 mi

Top 37%
×2story building
+58ft-57ft

Overall

11067

Females

3474

F30-34

3474

30K→35K

18.6 - 21.8 mi

Top 30%
×2story building
+98ft-92ft

Overall

9072

Females

2905

F30-34

2905

35K→40K

21.8 - 24.9 mi

Top 27%
×2story building
+36ft-53ft

Overall

8036

Females

2728

F30-34

2728

40K→Finish

24.9 - 26.2 mi

Top 27%
×5story building
+80ft-24ft

Overall

8004

Females

2783

F30-34

2783

Passing Analysis

Category:
Athletes Passed
3891*
Passed By
1609
Net Change
+2282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12741
5K → 10K119*997-878#12741#13619
10K → 15K372*199+173#13619#13446
15K → 21K614*88+526#13446#12920
21K → 25K426*84+342#12920#12578
25K → 30K551*110+441#12578#12137
30K → 35K780*52+728#12137#11409
35K → 40K767*53+714#11409#10695
40K → Finish262*26+236#10695#10459
TOTALS3891*1609+2282

* 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