Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Aiden Shannon

Downingtown, PA

Bib: 4702 M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 30047
Top 40%
Gender (Male)
#0 / 17709
Top 46%
Division (M20-24)
#0 / 1424
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
9:30/mi
29:31
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:06/mi
57:46
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:05/mi
1:25:58
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:09/mi
2:00:04
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:12/mi
2:22:57
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:27/mi
2:55:24
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
10:46/mi
3:28:50
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
13:51/mi
4:11:52
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
11:52/mi
4:28:03
↑ 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
Time2:00:04
Pace9:12 /mi
2nd Half
Distance13.17 mi
Time2:27:58
Pace11:14 /mi
📊Positive Split: 23.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:56:5729:319:3029:31
9:30
-
10K
6.21 mi08:25:1257:469:1828:15
9:06
-0:24
15K
9.32 mi08:53:241:25:589:1328:12
9:05
-0:01
21K
13.05 mi09:27:302:00:049:1234:06
9:09
+0:04
25K
15.53 mi09:50:232:22:579:1222:53
9:12
+0:03
30K
18.64 mi10:22:502:55:249:2532:27
10:27
+1:15
35K
21.75 mi10:56:163:28:509:3633:26
10:46
+0:19
40K
24.85 mi11:39:184:11:5210:0843:02
13:51
+3:05
Finish
26.22 mi11:55:294:28:0310:1416:11
11:52
-1:59

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

9:05 /mi

Average Pace

10:14 /mi

Slowest Pace

13:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:22:57

53% of race

Time at Slower Pace

2:05:06

47% of race

Average Pace: 10:13 /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 mi07:56:5729:319:3029:31
9:30
#8653
10K
6.21 mi08:25:1257:469:1828:15
9:06
#9309
15K
9.32 mi08:53:241:25:589:1328:12
9:05
#9369
21K
13.05 mi09:27:302:00:049:1234:06
9:09
#9120
25K
15.53 mi09:50:232:22:579:1222:53
9:12
#9162
30K
18.64 mi10:22:502:55:249:2532:27
10:27
#9715
35K
21.75 mi10:56:163:28:509:3633:26
10:46
#9904
40K
24.85 mi11:39:184:11:5210:0843:02
13:51
#11766
Finish
26.22 mi11:55:294:28:0310:1416:11
11:52
#11979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-24Seg. OverallSeg. MalesSeg. M20-24
5K3.11 mi3.11 mi865364127019613(Top 32%)7034(Top 40%)767(Top 54%)
10K6.21 mi3.10 mi9309-6566863-451726-2510125(Top 34%)7393(Top 42%)775(Top 55%)
15K9.32 mi3.11 mi9369-606897-34742-169613(Top 32%)7034(Top 40%)767(Top 54%)
21K13.05 mi3.73 mi9120+2496730+167725+178650(Top 29%)6388(Top 36%)705(Top 50%)
25K15.53 mi2.48 mi9162-426737-7736-119828(Top 33%)7064(Top 40%)775(Top 55%)
30K18.64 mi3.11 mi9715-5537038-301766-3012424(Top 41%)8358(Top 47%)887(Top 62%)
35K21.75 mi3.11 mi9904-1897055-17763+312109(Top 40%)7818(Top 44%)803(Top 57%)
40K24.85 mi3.10 mi11766-18628010-955845-8220930(Top 70%)12476(Top 70%)1137(Top 80%)
Finish26.22 mi1.37 mi11979-2138091-81852-715284(Top 51%)9311(Top 53%)975(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×18story building
+279ft-164ft

Overall

9613

Males

7034

M20-24

7034

5K→10K

3.1 - 6.2 mi

Top 34%
×11story building
+103ft-217ft

Overall

10125

Males

7393

M20-24

7393

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+51ft-55ft

Overall

9613

Males

7034

M20-24

7034

15K→21K

9.3 - 13.1 mi

Top 29%
×1story
+20ft-37ft

Overall

8650

Males

6388

M20-24

6388

21K→25K

13.1 - 15.5 mi

Top 33%
×2story building
+35ft-8ft

Overall

9828

Males

7064

M20-24

7064

25K→30K

15.5 - 18.6 mi

Top 41%
×2story building
+58ft-57ft

Overall

12424

Males

8358

M20-24

8358

30K→35K

18.6 - 21.8 mi

Top 40%
×2story building
+98ft-92ft

Overall

12109

Males

7818

M20-24

7818

35K→40K

21.8 - 24.9 mi

Top 70%
×2story building
+36ft-53ft

Overall

20930

Males

12476

M20-24

12476

40K→Finish

24.9 - 26.2 mi

Top 51%
×5story building
+80ft-24ft

Overall

15284

Males

9311

M20-24

9311

Passing Analysis

Category:
Athletes Passed
1428*
Passed By
4754
Net Change
-3326
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8653
5K → 10K93*749-656#8653#9309
10K → 15K191*251-60#9309#9369
15K → 21K394*145+249#9369#9120
21K → 25K225*267-42#9120#9162
25K → 30K139*692-553#9162#9715
30K → 35K282*471-189#9715#9904
35K → 40K36*1898-1862#9904#11766
40K → Finish68*281-213#11766#11979
TOTALS1428*4754-3326

* 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