Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Boo Kim

Arlington, VA

Bib: 15973 M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 30047
Top 38%
Gender (Male)
#0 / 17709
Top 44%
Masters (Masters Men)
#0 / 8330
Top 34%
Division (M55-59)
#0 / 1294
Top 29%
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
9:35/mi
29:45
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:08/mi
58:08
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:30/mi
1:27:38
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:32/mi
2:03:10
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:29/mi
2:26:43
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:19/mi
2:58:46
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
11:03/mi
3:33:07
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
11:40/mi
4:09:22
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
11:26/mi
4:24:57
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time2:03:10
Pace9:26 /mi
2nd Half
Distance13.17 mi
Time2:21:46
Pace10:46 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:01:2029:459:3529:45
9:35
-
10K
6.21 mi08:29:4358:089:2128:23
9:08
-0:27
15K
9.32 mi08:59:131:27:389:2429:30
9:30
+0:22
21K
13.05 mi09:34:452:03:109:2635:32
9:32
+0:02
25K
15.53 mi09:58:182:26:439:2723:33
9:29
-0:03
30K
18.64 mi10:30:212:58:469:3532:03
10:19
+0:50
35K
21.75 mi11:04:423:33:079:4834:21
11:03
+0:44
40K
24.85 mi11:40:574:09:2210:0236:15
11:40
+0:37
Finish
26.22 mi11:56:324:24:5710:0715:35
11:26
-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

9:08 /mi

Average Pace

10:07 /mi

Slowest Pace

11:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:26:43

55% of race

Time at Slower Pace

1:58:14

45% of race

Average Pace: 10:06 /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 mi08:01:2029:459:3529:45
9:35
#9108
10K
6.21 mi08:29:4358:089:2128:23
9:08
#9696
15K
9.32 mi08:59:131:27:389:2429:30
9:30
#10438
21K
13.05 mi09:34:452:03:109:2635:32
9:32
#10491
25K
15.53 mi09:58:182:26:439:2723:33
9:29
#10457
30K
18.64 mi10:30:212:58:469:3532:03
10:19
#10595
35K
21.75 mi11:04:423:33:079:4834:21
11:03
#10884
40K
24.85 mi11:40:574:09:2210:0236:15
11:40
#11251
Finish
26.22 mi11:56:324:24:5710:0715:35
11:26
#11363
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi91086695284119488492396
10K6.21 mi3.10 mi9696-5887116-421310-26103697559334
15K9.32 mi3.11 mi10438-7427570-454338-28119488492396
21K13.05 mi3.73 mi10491-537594-24338107987778353
25K15.53 mi2.48 mi10457+347547+47342-4110317768356
30K18.64 mi3.11 mi10595-1387571-24346-4118908045383
35K21.75 mi3.11 mi10884-2897623-52350-4132578454442
40K24.85 mi3.10 mi11251-3677715-92366-16139968594457
Finish26.22 mi1.37 mi11363-1127727-12370-4136298347422

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×18story building
+279ft-164ft

Overall

11948

Males

8492

M55-59

8492

5K→10K

3.1 - 6.2 mi

Top 35%
×11story building
+103ft-217ft

Overall

10369

Males

7559

M55-59

7559

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+51ft-55ft

Overall

11948

Males

8492

M55-59

8492

15K→21K

9.3 - 13.1 mi

Top 36%
×1story
+20ft-37ft

Overall

10798

Males

7778

M55-59

7778

21K→25K

13.1 - 15.5 mi

Top 37%
×2story building
+35ft-8ft

Overall

11031

Males

7768

M55-59

7768

25K→30K

15.5 - 18.6 mi

Top 40%
×2story building
+58ft-57ft

Overall

11890

Males

8045

M55-59

8045

30K→35K

18.6 - 21.8 mi

Top 44%
×2story building
+98ft-92ft

Overall

13257

Males

8454

M55-59

8454

35K→40K

21.8 - 24.9 mi

Top 47%
×2story building
+36ft-53ft

Overall

13996

Males

8594

M55-59

8594

40K→Finish

24.9 - 26.2 mi

Top 45%
×5story building
+80ft-24ft

Overall

13629

Males

8347

M55-59

8347

Passing Analysis

Category:
Athletes Passed
1455*
Passed By
3710
Net Change
-2255
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9108
5K → 10K104*692-588#9108#9696
10K → 15K60*802-742#9696#10438
15K → 21K252*305-53#10438#10491
21K → 25K238*204+34#10491#10457
25K → 30K235*373-138#10457#10595
30K → 35K273*562-289#10595#10884
35K → 40K197*564-367#10884#11251
40K → Finish96*208-112#11251#11363
TOTALS1455*3710-2255

* 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