Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Chad Kasperowski

Lorton, VA

Bib: 29963 M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 30047
Top 42%
Gender (Male)
#0 / 17709
Top 48%
Masters (Masters Men)
#0 / 8330
Top 38%
Division (M50-54)
#0 / 1638
Top 38%
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
9:50/mi
30:34
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:58/mi
58:25
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:16/mi
1:27:11
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
10:04/mi
2:04:44
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
10:35/mi
2:31:03
↑ 350.2%
30 ft elev
30K· 18.64 mi
11:06/mi
3:05:31
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
11:11/mi
3:40:15
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
11:21/mi
4:15:31
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
11:33/mi
4:31:16
↑ 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
2:04:449:34 /mi⚡ faster
2nd Half
2:26:3211:08 /mi+17.5%
Positive split — 17.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:17:5330:349:5030:34
9:50
-
10K
6.21 mi08:45:4458:259:2427:51
8:58
-0:52
15K
9.32 mi09:14:301:27:119:2128:46
9:16
+0:18
21K
13.05 mi09:52:032:04:449:3437:33
10:04
+0:48
25K
15.53 mi10:18:222:31:039:4326:19
10:35
+0:31
30K
18.64 mi10:52:503:05:319:5734:28
11:06
+0:31
35K
21.75 mi11:27:343:40:1510:0834:44
11:11
+0:05
40K
24.85 mi12:02:504:15:3110:1735:16
11:21
+0:10
Finish
26.22 mi12:18:354:31:1610:2115:45
11:33
+0:12

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

8:58 /mi

Average Pace

10:21 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:04:44

46% of race

Time at Steady Pace

26:19

10% of race

Time at Slower Pace

2:00:13

44% of race

Average Pace: 10:21 /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 mi08:17:5330:349:5030:34
9:50
#10666
10K
6.21 mi08:45:4458:259:2427:51
8:58
#9989
15K
9.32 mi09:14:301:27:119:2128:46
9:16
#10151
21K
13.05 mi09:52:032:04:449:3437:33
10:04
#11138
25K
15.53 mi10:18:222:31:039:4326:19
10:35
#11986
30K
18.64 mi10:52:503:05:319:5734:28
11:06
#12483
35K
21.75 mi11:27:343:40:1510:0834:44
11:11
#12566
40K
24.85 mi12:02:504:15:3110:1735:16
11:21
#12502
Finish
26.22 mi12:18:354:31:1610:2115:45
11:33
#12564
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi106667693540106317691536
10K6.21 mi3.10 mi9989+6777295+398504+3692716851466
15K9.32 mi3.11 mi10151-1627396-101510-6106317691536
21K13.05 mi3.73 mi11138-9878007-611565-55135699367696
25K15.53 mi2.48 mi11986-8488464-457621-561636510730825
30K18.64 mi3.11 mi12483-4978676-212637-16151299838747
35K21.75 mi3.11 mi12566-838589+87636+1137298713665
40K24.85 mi3.10 mi12502+648426+163618+18128437936588
Finish26.22 mi1.37 mi12564-628413+13617+1141348654611

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×18story building
+279ft-164ft

Overall

10631

Males

7691

M50-54

7691

5K→10K

3.1 - 6.2 mi

Top 31%
×11story building
+103ft-217ft

Overall

9271

Males

6851

M50-54

6851

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+51ft-55ft

Overall

10631

Males

7691

M50-54

7691

15K→21K

9.3 - 13.1 mi

Top 45%
×1story
+20ft-37ft

Overall

13569

Males

9367

M50-54

9367

21K→25K

13.1 - 15.5 mi

Top 54%
×2story building
+35ft-8ft

Overall

16365

Males

10730

M50-54

10730

25K→30K

15.5 - 18.6 mi

Top 50%
×2story building
+58ft-57ft

Overall

15129

Males

9838

M50-54

9838

30K→35K

18.6 - 21.8 mi

Top 46%
×2story building
+98ft-92ft

Overall

13729

Males

8713

M50-54

8713

35K→40K

21.8 - 24.9 mi

Top 43%
×2story building
+36ft-53ft

Overall

12843

Males

7936

M50-54

7936

40K→Finish

24.9 - 26.2 mi

Top 47%
×5story building
+80ft-24ft

Overall

14134

Males

8654

M50-54

8654

Passing Analysis

Category:
Athletes Passed
2097*
Passed By
3995
Net Change
-1898
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10666
5K → 10K770*93+677#10666#9989
10K → 15K164*326-162#9989#10151
15K → 21K78*1065-987#10151#11138
21K → 25K89*937-848#11138#11986
25K → 30K170*667-497#11986#12483
30K → 35K358*441-83#12483#12566
35K → 40K369*305+64#12566#12502
40K → Finish99*161-62#12502#12564
TOTALS2097*3995-1898

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions