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MARINE CORPS MARATHON 2025

Brad Kostrzebski

Purcellville, VA

Bib: 4097 M

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 9%
Gender (Male)
#0 / 17709
Top 13%
Division (M30-34)
#0 / 2603
Top 16%
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
7:56/mi
24:38
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
7:17/mi
47:17
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
7:24/mi
1:10:15
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
7:52/mi
1:39:34
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
7:48/mi
1:58:58
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:36/mi
2:25:42
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:00/mi
2:53:39
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
9:28/mi
3:23:04
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:30/mi
3:36:02
↑ 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
Time1:39:34
Pace7:38 /mi
2nd Half
Distance13.17 mi
Time1:56:27
Pace8:51 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:45:3624:387:5624:38
7:56
-
10K
6.21 mi08:08:1547:177:3722:39
7:17
-0:39
15K
9.32 mi08:31:131:10:157:3222:58
7:24
+0:07
21K
13.05 mi09:00:321:39:347:3829:19
7:52
+0:28
25K
15.53 mi09:19:561:58:587:3919:24
7:48
-0:04
30K
18.64 mi09:46:402:25:427:4926:44
8:36
+0:48
35K
21.75 mi10:14:372:53:397:5927:57
9:00
+0:24
40K
24.85 mi10:44:023:23:048:1029:25
9:28
+0:28
Finish
26.22 mi10:57:003:36:028:1512:58
9:30
+0:02

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

7:17 /mi

Average Pace

8:15 /mi

Slowest Pace

9:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:37

21% of race

Time at Steady Pace

1:13:21

34% of race

Time at Slower Pace

1:37:04

45% of race

Average Pace: 8:14 /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 mi07:45:3624:387:5624:38
7:56
#1646
10K
6.21 mi08:08:1547:177:3722:39
7:17
#1603
15K
9.32 mi08:31:131:10:157:3222:58
7:24
#1622
21K
13.05 mi09:00:321:39:347:3829:19
7:52
#1753
25K
15.53 mi09:19:561:58:587:3919:24
7:48
#1872
30K
18.64 mi09:46:402:25:427:4926:44
8:36
#2156
35K
21.75 mi10:14:372:53:397:5927:57
9:00
#2503
40K
24.85 mi10:44:023:23:048:1029:25
9:28
#2788
Finish
26.22 mi10:57:003:36:028:1512:58
9:30
#2850
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
5K3.11 mi3.11 mi164613832871673(Top 6%)1428(Top 8%)285(Top 11%)
10K6.21 mi3.10 mi1603+431363+20281+61568(Top 5%)1350(Top 8%)275(Top 11%)
15K9.32 mi3.11 mi1622-191379-16282-11673(Top 6%)1428(Top 8%)285(Top 11%)
21K13.05 mi3.73 mi1753-1311480-101296-142387(Top 8%)1979(Top 11%)387(Top 15%)
25K15.53 mi2.48 mi1872-1191565-85319-232963(Top 10%)2387(Top 13%)460(Top 18%)
30K18.64 mi3.11 mi2156-2841768-203353-344275(Top 14%)3310(Top 19%)602(Top 23%)
35K21.75 mi3.11 mi2503-3472034-266406-535017(Top 17%)3696(Top 21%)664(Top 26%)
40K24.85 mi3.10 mi2788-2852219-185423-175837(Top 19%)4043(Top 23%)695(Top 27%)
Finish26.22 mi1.37 mi2850-622248-29426-35999(Top 20%)4055(Top 23%)706(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×18story building
+279ft-164ft

Overall

1673

Males

1428

M30-34

1428

5K→10K

3.1 - 6.2 mi

Top 5%
×11story building
+103ft-217ft

Overall

1568

Males

1350

M30-34

1350

10K→15K

6.2 - 9.3 mi

Top 6%
×3story building
+51ft-55ft

Overall

1673

Males

1428

M30-34

1428

15K→21K

9.3 - 13.1 mi

Top 8%
×1story
+20ft-37ft

Overall

2387

Males

1979

M30-34

1979

21K→25K

13.1 - 15.5 mi

Top 10%
×2story building
+35ft-8ft

Overall

2963

Males

2387

M30-34

2387

25K→30K

15.5 - 18.6 mi

Top 14%
×2story building
+58ft-57ft

Overall

4275

Males

3310

M30-34

3310

30K→35K

18.6 - 21.8 mi

Top 17%
×2story building
+98ft-92ft

Overall

5017

Males

3696

M30-34

3696

35K→40K

21.8 - 24.9 mi

Top 19%
×2story building
+36ft-53ft

Overall

5837

Males

4043

M30-34

4043

40K→Finish

24.9 - 26.2 mi

Top 20%
×5story building
+80ft-24ft

Overall

5999

Males

4055

M30-34

4055

Passing Analysis

Category:
Athletes Passed
315*
Passed By
1519
Net Change
-1204
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1646
5K → 10K104*61+43#1646#1603
10K → 15K2544-19#1603#1622
15K → 21K17*148-131#1622#1753
21K → 25K16135-119#1753#1872
25K → 30K22*306-284#1872#2156
30K → 35K40387-347#2156#2503
35K → 40K56*341-285#2503#2788
40K → Finish35*97-62#2788#2850
TOTALS315*1519-1204

* 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