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MARINE CORPS MARATHON 2025

Justyna Krempin

Houston, TX

Bib: 1807 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Gender (Female)
#0 / 12338
Masters (Masters Women)
#0 / 5451
Division (F40-44)
#0 / 1527
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
11:56/mi
37:04
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
11:11/mi
1:11:50
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
11:31/mi
1:47:38
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
12:03/mi
2:32:35
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
12:01/mi
3:02:26
↑ 350.2%
30 ft elev
30K· 18.64 mi
12:53/mi
3:42:27
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
12:56/mi
4:22:38
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
13:26/mi
5:04:22
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
13:29/mi
5:22:45
↑ 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
2:32:3511:42 /mi⚡ faster
2nd Half
2:50:1012:55 /mi+11.5%
Positive split — 11.5% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:22:0537:0411:5637:04
11:56
-
10K
6.21 mi08:56:511:11:5011:3434:46
11:11
-0:45
15K
9.32 mi09:32:391:47:3811:3335:48
11:31
+0:20
21K
13.05 mi10:17:362:32:3511:4244:57
12:03
+0:32
25K
15.53 mi10:47:273:02:2611:4529:51
12:01
-0:02
30K
18.64 mi11:27:283:42:2711:5640:01
12:53
+0:52
35K
21.75 mi12:07:394:22:3812:0540:11
12:56
+0:03
40K
24.85 mi12:49:235:04:2212:1541:44
13:26
+0:30
Finish
26.22 mi13:07:465:22:4512:1918:23
13:29
+0:03

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

11:11 /mi

Average Pace

12:19 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:10:34

22% of race

Time at Steady Pace

1:51:52

35% of race

Time at Slower Pace

2:20:19

43% of race

Average Pace: 12:19 /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 mi08:22:0537:0411:5637:04
11:56
#23603
10K
6.21 mi08:56:511:11:5011:3434:46
11:11
#23361
15K
9.32 mi09:32:391:47:3811:3335:48
11:31
#23278
21K
13.05 mi10:17:362:32:3511:4244:57
12:03
#22989
25K
15.53 mi10:47:273:02:2611:4529:51
12:01
#22640
30K
18.64 mi11:27:283:42:2711:5640:01
12:53
#22250
35K
21.75 mi12:07:394:22:3812:0540:11
12:56
#21780
40K
24.85 mi12:49:235:04:2212:1541:44
13:26
#21438
Finish
26.22 mi13:07:465:22:4512:1918:23
13:29
#21345
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi23603876310212319585421001
10K6.21 mi3.10 mi23361+2428648+1151012+92319485491002
15K9.32 mi3.11 mi23278+838579+691002+102319585421001
21K13.05 mi3.73 mi22989+2898477+102989+13225758353971
25K15.53 mi2.48 mi22640+3498348+129969+20216848175948
30K18.64 mi3.11 mi22250+3908254+94958+11213218172956
35K21.75 mi3.11 mi21780+4708138+116947+11196717749893
40K24.85 mi3.10 mi21438+3428079+59948-1196607860908
Finish26.22 mi1.37 mi21345+938073+6944+4206048245952

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×18story building
+279ft-164ft

Overall

23195

Females

8542

F40-44

8542

5K→10K

3.1 - 6.2 mi

Top 77%
×11story building
+103ft-217ft

Overall

23194

Females

8549

F40-44

8549

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+51ft-55ft

Overall

23195

Females

8542

F40-44

8542

15K→21K

9.3 - 13.1 mi

Top 75%
×1story
+20ft-37ft

Overall

22575

Females

8353

F40-44

8353

21K→25K

13.1 - 15.5 mi

Top 72%
×2story building
+35ft-8ft

Overall

21684

Females

8175

F40-44

8175

25K→30K

15.5 - 18.6 mi

Top 71%
×2story building
+58ft-57ft

Overall

21321

Females

8172

F40-44

8172

30K→35K

18.6 - 21.8 mi

Top 65%
×2story building
+98ft-92ft

Overall

19671

Females

7749

F40-44

7749

35K→40K

21.8 - 24.9 mi

Top 65%
×2story building
+36ft-53ft

Overall

19660

Females

7860

F40-44

7860

40K→Finish

24.9 - 26.2 mi

Top 69%
×5story building
+80ft-24ft

Overall

20604

Females

8245

F40-44

8245

Passing Analysis

Category:
Athletes Passed
3972*
Passed By
1714
Net Change
+2258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23603
5K → 10K585*343+242#23603#23361
10K → 15K459*376+83#23361#23278
15K → 21K640*351+289#23278#22989
21K → 25K504*155+349#22989#22640
25K → 30K543*153+390#22640#22250
30K → 35K592*122+470#22250#21780
35K → 40K472*130+342#21780#21438
40K → Finish177*84+93#21438#21345
TOTALS3972*1714+2258

* 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