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MARINE CORPS MARATHON 2025

Kelsey Thetford

Birmingham, AL

Bib: 19059 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 36%
Gender (Female)
#0 / 12338
Top 28%
Division (F30-34)
#0 / 1621
Top 32%
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
10:12/mi
31:42
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:36/mi
1:01:30
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:22/mi
1:30:36
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:28/mi
2:05:55
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
10:22/mi
2:31:41
↑ 350.2%
30 ft elev
30K· 18.64 mi
9:54/mi
3:02:28
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
10:27/mi
3:34:56
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:47/mi
4:08:25
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:22/mi
4:22:33
↑ 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
2:05:559:39 /mi⚡ faster
2nd Half
2:16:3710:22 /mi+8.5%
Positive split — 8.5% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:04:5031:4210:1231:42
10:12
-
10K
6.21 mi08:34:381:01:309:5429:48
9:36
-0:36
15K
9.32 mi09:03:441:30:369:4329:06
9:22
-0:14
21K
13.05 mi09:39:032:05:559:3935:19
9:28
+0:06
25K
15.53 mi10:04:492:31:419:4625:46
10:22
+0:54
30K
18.64 mi10:35:363:02:289:4730:47
9:54
-0:28
35K
21.75 mi11:08:043:34:569:5332:28
10:27
+0:33
40K
24.85 mi11:41:334:08:2510:0033:29
10:47
+0:20
Finish
26.22 mi11:55:414:22:3310:0114:08
10:22
-0:25

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

9:22 /mi

Average Pace

10:01 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:42

60% of race

Time at Steady Pace

1:45:51

40% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:01 /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.

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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 mi08:04:5031:4210:1231:42
10:12
#12881
10K
6.21 mi08:34:381:01:309:5429:48
9:36
#12957
15K
9.32 mi09:03:441:30:369:4329:06
9:22
#12293
21K
13.05 mi09:39:032:05:559:3935:19
9:28
#11641
25K
15.53 mi10:04:492:31:419:4625:46
10:22
#12182
30K
18.64 mi10:35:363:02:289:4730:47
9:54
#11637
35K
21.75 mi11:08:043:34:569:5332:28
10:27
#11321
40K
24.85 mi11:41:334:08:2510:0033:29
10:47
#11067
Finish
26.22 mi11:55:414:22:3310:0114:08
10:22
#10884
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
5K3.11 mi3.11 mi128813847566111843163470
10K6.21 mi3.10 mi12957-763853-6565+1131193919563
15K9.32 mi3.11 mi12293+6643581+272525+40111843163470
21K13.05 mi3.73 mi11641+6523342+239488+37104952902428
25K15.53 mi2.48 mi12182-5413602-260528-40152985133758
30K18.64 mi3.11 mi11637+5453464+138509+19101053080473
35K21.75 mi3.11 mi11321+3163445+19513-4108473709558
40K24.85 mi3.10 mi11067+2543468-23523-10106643885581
Finish26.22 mi1.37 mi10884+1833433+3552393683396514

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×18story building
+279ft-164ft

Overall

11184

Females

3163

F30-34

3163

5K→10K

3.1 - 6.2 mi

Top 44%
×11story building
+103ft-217ft

Overall

13119

Females

3919

F30-34

3919

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+51ft-55ft

Overall

11184

Females

3163

F30-34

3163

15K→21K

9.3 - 13.1 mi

Top 35%
×1story
+20ft-37ft

Overall

10495

Females

2902

F30-34

2902

21K→25K

13.1 - 15.5 mi

Top 51%
×2story building
+35ft-8ft

Overall

15298

Females

5133

F30-34

5133

25K→30K

15.5 - 18.6 mi

Top 34%
×2story building
+58ft-57ft

Overall

10105

Females

3080

F30-34

3080

30K→35K

18.6 - 21.8 mi

Top 36%
×2story building
+98ft-92ft

Overall

10847

Females

3709

F30-34

3709

35K→40K

21.8 - 24.9 mi

Top 35%
×2story building
+36ft-53ft

Overall

10664

Females

3885

F30-34

3885

40K→Finish

24.9 - 26.2 mi

Top 31%
×5story building
+80ft-24ft

Overall

9368

Females

3396

F30-34

3396

Passing Analysis

Category:
Athletes Passed
3650*
Passed By
1653
Net Change
+1997
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12881
5K → 10K333*409-76#12881#12957
10K → 15K701*37+664#12957#12293
15K → 21K701*49+652#12293#11641
21K → 25K132*673-541#11641#12182
25K → 30K601*56+545#12182#11637
30K → 35K497*181+316#11637#11321
35K → 40K446*192+254#11321#11067
40K → Finish239*56+183#11067#10884
TOTALS3650*1653+1997

* 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