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MARINE CORPS MARATHON 2025

Kristen Kozlowski

Houston, TX

Bib: 3192 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 30%
Gender (Female)
#0 / 12338
Top 22%
Masters (Masters Women)
#0 / 5451
Top 14%
Division (F40-44)
#0 / 1527
Top 20%
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
9:29/mi
29:28
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:16/mi
58:14
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:59/mi
1:26:08
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:26/mi
2:01:18
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:17/mi
2:24:22
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:19/mi
2:56:24
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
10:03/mi
3:27:36
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:12/mi
3:59:18
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:58/mi
4:12:54
↑ 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
Time2:01:18
Pace9:18 /mi
2nd Half
Distance13.17 mi
Time2:11:35
Pace9:59 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:53:3829:289:2929:28
9:29
-
10K
6.21 mi08:22:2458:149:2228:46
9:16
-0:13
15K
9.32 mi08:50:181:26:089:1427:54
8:59
-0:17
21K
13.05 mi09:25:282:01:189:1835:10
9:26
+0:27
25K
15.53 mi09:48:322:24:229:1823:04
9:17
-0:09
30K
18.64 mi10:20:342:56:249:2832:02
10:19
+1:02
35K
21.75 mi10:51:463:27:369:3331:12
10:03
-0:16
40K
24.85 mi11:23:283:59:189:3831:42
10:12
+0:09
Finish
26.22 mi11:37:044:12:549:3913:36
9:58
-0:14

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

8:59 /mi

Average Pace

9:39 /mi

Slowest Pace

10:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:22

57% of race

Time at Steady Pace

1:48:32

43% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:39 /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 mi07:53:3829:289:2929:28
9:29
#8527
10K
6.21 mi08:22:2458:149:2228:46
9:16
#9784
15K
9.32 mi08:50:181:26:089:1427:54
8:59
#9485
21K
13.05 mi09:25:282:01:189:1835:10
9:26
#9684
25K
15.53 mi09:48:322:24:229:1823:04
9:17
#9662
30K
18.64 mi10:20:342:56:249:2832:02
10:19
#9984
35K
21.75 mi10:51:463:27:369:3331:12
10:03
#9647
40K
24.85 mi11:23:283:59:189:3831:42
10:12
#9190
Finish
26.22 mi11:37:044:12:549:3913:36
9:58
#9002
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi852722032438995(Top 30%)2353(Top 19%)259(Top 17%)
10K6.21 mi3.10 mi9784-12572603-400299-5611068(Top 37%)3094(Top 25%)361(Top 24%)
15K9.32 mi3.11 mi9485+2992511+92285+148995(Top 30%)2353(Top 19%)259(Top 17%)
21K13.05 mi3.73 mi9684-1992595-84299-1410312(Top 34%)2832(Top 23%)329(Top 22%)
25K15.53 mi2.48 mi9662+222606-11296+310111(Top 34%)2877(Top 23%)321(Top 21%)
30K18.64 mi3.11 mi9984-3222772-166314-1811856(Top 39%)3825(Top 31%)441(Top 29%)
35K21.75 mi3.11 mi9647+3372744+283149283(Top 31%)3002(Top 24%)337(Top 22%)
40K24.85 mi3.10 mi9190+4572695+49309+58473(Top 28%)2933(Top 24%)325(Top 22%)
Finish26.22 mi1.37 mi9002+1882655+40305+47813(Top 26%)2711(Top 22%)296(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×18story building
+279ft-164ft

Overall

8995

Females

2353

F40-44

2353

5K→10K

3.1 - 6.2 mi

Top 37%
×11story building
+103ft-217ft

Overall

11068

Females

3094

F40-44

3094

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+51ft-55ft

Overall

8995

Females

2353

F40-44

2353

15K→21K

9.3 - 13.1 mi

Top 34%
×1story
+20ft-37ft

Overall

10312

Females

2832

F40-44

2832

21K→25K

13.1 - 15.5 mi

Top 34%
×2story building
+35ft-8ft

Overall

10111

Females

2877

F40-44

2877

25K→30K

15.5 - 18.6 mi

Top 39%
×2story building
+58ft-57ft

Overall

11856

Females

3825

F40-44

3825

30K→35K

18.6 - 21.8 mi

Top 31%
×2story building
+98ft-92ft

Overall

9283

Females

3002

F40-44

3002

35K→40K

21.8 - 24.9 mi

Top 28%
×2story building
+36ft-53ft

Overall

8473

Females

2933

F40-44

2933

40K→Finish

24.9 - 26.2 mi

Top 26%
×5story building
+80ft-24ft

Overall

7813

Females

2711

F40-44

2711

Passing Analysis

Category:
Athletes Passed
2342*
Passed By
2817
Net Change
-475
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8527
5K → 10K36*1293-1257#8527#9784
10K → 15K400*101+299#9784#9485
15K → 21K209*408-199#9485#9684
21K → 25K236214+22#9684#9662
25K → 30K186*508-322#9662#9984
30K → 35K495*158+337#9984#9647
35K → 40K564*107+457#9647#9190
40K → Finish216*28+188#9190#9002
TOTALS2342*2817-475

* 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