Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

John Detamore

Atlanta, GA

Bib: 20147 M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 30047
Top 26%
Gender (Male)
#0 / 17709
Top 31%
Division (M25-29)
#0 / 2720
Top 43%
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
8:52/mi
57:01
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:01/mi
1:25:02
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:02/mi
1:58:43
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:51/mi
2:20:42
↑ 350.2%
30 ft elev
30K· 18.64 mi
9:37/mi
2:50:35
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:41/mi
3:20:40
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
9:54/mi
3:51:24
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:45/mi
4:04:42
↑ 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 on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time1:58:43
Pace9:06 /mi
2nd Half
Distance13.17 mi
Time2:05:59
Pace9:34 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:01:0229:289:2929:28
9:29
-
10K
6.21 mi08:28:3557:019:1127:33
8:52
-0:37
15K
9.32 mi08:56:361:25:029:0728:01
9:01
+0:09
21K
13.05 mi09:30:171:58:439:0633:41
9:02
+0:01
25K
15.53 mi09:52:162:20:429:0321:59
8:51
-0:11
30K
18.64 mi10:22:092:50:359:0929:53
9:37
+0:46
35K
21.75 mi10:52:143:20:409:1430:05
9:41
+0:04
40K
24.85 mi11:22:583:51:249:1930:44
9:54
+0:13
Finish
26.22 mi11:36:164:04:429:2013:18
9:45
-0:09

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

8:51 /mi

Average Pace

9:20 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:40

82% of race

Time at Steady Pace

44:02

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:20 /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 mi08:01:0229:289:2929:28
9:29
#8532
10K
6.21 mi08:28:3557:019:1127:33
8:52
#8501
15K
9.32 mi08:56:361:25:029:0728:01
9:01
#8740
21K
13.05 mi09:30:171:58:439:0633:41
9:02
#8375
25K
15.53 mi09:52:162:20:429:0321:59
8:51
#8228
30K
18.64 mi10:22:092:50:359:0929:53
9:37
#8304
35K
21.75 mi10:52:143:20:409:1430:05
9:41
#8072
40K
24.85 mi11:22:583:51:249:1930:44
9:54
#7796
Finish
26.22 mi11:36:164:04:429:2013:18
9:45
#7660
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi8532632512759195(Top 31%)6770(Top 38%)1388(Top 51%)
10K6.21 mi3.10 mi8501+316319+61284-98534(Top 28%)6364(Top 36%)1301(Top 48%)
15K9.32 mi3.11 mi8740-2396482-1631311-279195(Top 31%)6770(Top 38%)1388(Top 51%)
21K13.05 mi3.73 mi8375+3656241+2411285+267893(Top 26%)5904(Top 33%)1246(Top 46%)
25K15.53 mi2.48 mi8228+1476129+1121268+177920(Top 26%)5869(Top 33%)1238(Top 46%)
30K18.64 mi3.11 mi8304-766139-101272-48914(Top 30%)6348(Top 36%)1304(Top 48%)
35K21.75 mi3.11 mi8072+2325914+2251231+417878(Top 26%)5482(Top 31%)1126(Top 41%)
40K24.85 mi3.10 mi7796+2765660+2541183+487363(Top 25%)4928(Top 28%)1014(Top 37%)
Finish26.22 mi1.37 mi7660+1365535+1251161+226938(Top 23%)4596(Top 26%)981(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×18story building
+279ft-164ft

Overall

9195

Males

6770

M25-29

6770

5K→10K

3.1 - 6.2 mi

Top 28%
×11story building
+103ft-217ft

Overall

8534

Males

6364

M25-29

6364

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+51ft-55ft

Overall

9195

Males

6770

M25-29

6770

15K→21K

9.3 - 13.1 mi

Top 26%
×1story
+20ft-37ft

Overall

7893

Males

5904

M25-29

5904

21K→25K

13.1 - 15.5 mi

Top 26%
×2story building
+35ft-8ft

Overall

7920

Males

5869

M25-29

5869

25K→30K

15.5 - 18.6 mi

Top 30%
×2story building
+58ft-57ft

Overall

8914

Males

6348

M25-29

6348

30K→35K

18.6 - 21.8 mi

Top 26%
×2story building
+98ft-92ft

Overall

7878

Males

5482

M25-29

5482

35K→40K

21.8 - 24.9 mi

Top 25%
×2story building
+36ft-53ft

Overall

7363

Males

4928

M25-29

4928

40K→Finish

24.9 - 26.2 mi

Top 23%
×5story building
+80ft-24ft

Overall

6938

Males

4596

M25-29

4596

Passing Analysis

Category:
Athletes Passed
2498*
Passed By
1626
Net Change
+872
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8532
5K → 10K288*257+31#8532#8501
10K → 15K142*381-239#8501#8740
15K → 21K464*99+365#8740#8375
21K → 25K259*112+147#8375#8228
25K → 30K289*365-76#8228#8304
30K → 35K455*223+232#8304#8072
35K → 40K427*151+276#8072#7796
40K → Finish174*38+136#7796#7660
TOTALS2498*1626+872

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

📊

Passing Visuals

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