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MARINE CORPS MARATHON 2025

De Ning Guan

Rego Park, NY

Bib: 16334 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 15%
Gender (Male)
#0 / 17709
Top 19%
Masters (Masters Men)
#0 / 8330
Top 12%
Division (M50-54)
#0 / 1638
Top 12%
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
9:17/mi
28:52
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:31/mi
55:21
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:23/mi
1:21:24
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:28/mi
1:52:58
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:24/mi
2:13:51
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:37/mi
2:40:38
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
8:41/mi
3:07:37
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
8:57/mi
3:35:26
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:00/mi
3:47:43
↑ 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
1:52:588:39 /mi⚡ faster
2nd Half
1:54:458:43 /mi+1.6%
Positive split — 1.6% 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 mi08:07:5828:529:1728:52
9:17
-
10K
6.21 mi08:34:2755:218:5426:29
8:31
-0:46
15K
9.32 mi09:00:301:21:248:4426:03
8:23
-0:08
21K
13.05 mi09:32:041:52:588:3931:34
8:28
+0:05
25K
15.53 mi09:52:572:13:518:3720:53
8:24
-0:04
30K
18.64 mi10:19:442:40:388:3726:47
8:37
+0:13
35K
21.75 mi10:46:433:07:378:3826:59
8:41
+0:04
40K
24.85 mi11:14:323:35:268:4027:49
8:57
+0:16
Finish
26.22 mi11:26:493:47:438:4112:17
9:00
+0:03

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

8:23 /mi

Average Pace

8:41 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

3:18:51

87% of race

Time at Steady Pace

28:52

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:41 /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.

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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 mi08:07:5828:529:1728:52
9:17
#7278
10K
6.21 mi08:34:2755:218:5426:29
8:31
#6731
15K
9.32 mi09:00:301:21:248:4426:03
8:23
#6163
21K
13.05 mi09:32:041:52:588:3931:34
8:28
#5583
25K
15.53 mi09:52:572:13:518:3720:53
8:24
#5449
30K
18.64 mi10:19:442:40:388:3726:47
8:37
#5131
35K
21.75 mi10:46:433:07:378:3826:59
8:41
#4742
40K
24.85 mi11:14:323:35:268:4027:49
8:57
#4477
Finish
26.22 mi11:26:493:47:438:4112:17
9:00
#4396
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi7278550535251624067236
10K6.21 mi3.10 mi6731+5475150+355332+2063004885310
15K9.32 mi3.11 mi6163+5684758+392301+3151624067236
21K13.05 mi3.73 mi5583+5804361+397264+3746153646200
25K15.53 mi2.48 mi5449+1344254+107253+1152664069232
30K18.64 mi3.11 mi5131+3183981+273232+2143333350189
35K21.75 mi3.11 mi4742+3893658+323205+2737912878152
40K24.85 mi3.10 mi4477+2653415+243191+1439642883160
Finish26.22 mi1.37 mi4396+813344+71189+242162994172

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×18story building
+279ft-164ft

Overall

5162

Males

4067

M50-54

4067

5K→10K

3.1 - 6.2 mi

Top 21%
×11story building
+103ft-217ft

Overall

6300

Males

4885

M50-54

4885

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+51ft-55ft

Overall

5162

Males

4067

M50-54

4067

15K→21K

9.3 - 13.1 mi

Top 15%
×1story
+20ft-37ft

Overall

4615

Males

3646

M50-54

3646

21K→25K

13.1 - 15.5 mi

Top 18%
×2story building
+35ft-8ft

Overall

5266

Males

4069

M50-54

4069

25K→30K

15.5 - 18.6 mi

Top 14%
×2story building
+58ft-57ft

Overall

4333

Males

3350

M50-54

3350

30K→35K

18.6 - 21.8 mi

Top 13%
×2story building
+98ft-92ft

Overall

3791

Males

2878

M50-54

2878

35K→40K

21.8 - 24.9 mi

Top 13%
×2story building
+36ft-53ft

Overall

3964

Males

2883

M50-54

2883

40K→Finish

24.9 - 26.2 mi

Top 14%
×5story building
+80ft-24ft

Overall

4216

Males

2994

M50-54

2994

Passing Analysis

Category:
Athletes Passed
3280*
Passed By
398
Net Change
+2882
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7278
5K → 10K646*99+547#7278#6731
10K → 15K589*21+568#6731#6163
15K → 21K600*20+580#6163#5583
21K → 25K21379+134#5583#5449
25K → 30K353*35+318#5449#5131
30K → 35K422*33+389#5131#4742
35K → 40K337*72+265#4742#4477
40K → Finish120*39+81#4477#4396
TOTALS3280*398+2882

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

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Questions or issues regarding timing data?

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Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions