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MARINE CORPS MARATHON 2025

Tiejun Li

Marlborough, MA

Bib: 18005 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 34%
Gender (Male)
#0 / 17709
Top 40%
Masters (Masters Men)
#0 / 8330
Top 30%
Division (M50-54)
#0 / 1638
Top 31%
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
9:44/mi
30:14
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
9:07/mi
58:33
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
9:10/mi
1:27:01
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:16/mi
2:01:34
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:12/mi
2:24:26
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:11/mi
2:56:03
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
10:36/mi
3:28:58
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
11:05/mi
4:03:25
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
11:11/mi
4:18:40
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

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Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time2:01:34
Pace9:19 /mi
2nd Half
Distance13.17 mi
Time2:17:06
Pace10:25 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:16:3130:149:4430:14
9:44
-
10K
6.21 mi08:44:5058:339:2528:19
9:07
-0:37
15K
9.32 mi09:13:181:27:019:2028:28
9:10
+0:03
21K
13.05 mi09:47:512:01:349:1934:33
9:16
+0:06
25K
15.53 mi10:10:432:24:269:1822:52
9:12
-0:04
30K
18.64 mi10:42:202:56:039:2731:37
10:11
+0:59
35K
21.75 mi11:15:153:28:589:3732:55
10:36
+0:25
40K
24.85 mi11:49:424:03:259:4834:27
11:05
+0:29
Finish
26.22 mi12:04:574:18:409:5215:15
11:11
+0:06

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

9:07 /mi

Average Pace

9:52 /mi

Slowest Pace

11:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:12

44% of race

Time at Steady Pace

30:14

12% of race

Time at Slower Pace

1:54:14

44% of race

Average Pace: 9:52 /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 mi08:16:3130:149:4430:14
9:44
#10009
10K
6.21 mi08:44:5058:339:2528:19
9:07
#10119
15K
9.32 mi09:13:181:27:019:2028:28
9:10
#10056
21K
13.05 mi09:47:512:01:349:1934:33
9:16
#9810
25K
15.53 mi10:10:432:24:269:1822:52
9:12
#9686
30K
18.64 mi10:42:202:56:039:2731:37
10:11
#9899
35K
21.75 mi11:15:153:28:589:3732:55
10:36
#9926
40K
24.85 mi11:49:424:03:259:4834:27
11:05
#9999
Finish
26.22 mi12:04:574:18:409:5215:15
11:11
#10107
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi100097278508101057378506
10K6.21 mi3.10 mi10119-1107371-93510-2102267463514
15K9.32 mi3.11 mi10056+637342+29503+7101057378506
21K13.05 mi3.73 mi9810+2467169+173493+1093756887467
25K15.53 mi2.48 mi9686+1247075+94486+797777034492
30K18.64 mi3.11 mi9899-2137159-84505-19112767712553
35K21.75 mi3.11 mi9926-277067+92500+5114297464561
40K24.85 mi3.10 mi9999-736978+89498+2118567399547
Finish26.22 mi1.37 mi10107-1086997-19503-5125987777540

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×18story building
+279ft-164ft

Overall

10105

Males

7378

M50-54

7378

5K→10K

3.1 - 6.2 mi

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

Overall

10226

Males

7463

M50-54

7463

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+51ft-55ft

Overall

10105

Males

7378

M50-54

7378

15K→21K

9.3 - 13.1 mi

Top 31%
×1story
+20ft-37ft

Overall

9375

Males

6887

M50-54

6887

21K→25K

13.1 - 15.5 mi

Top 33%
×2story building
+35ft-8ft

Overall

9777

Males

7034

M50-54

7034

25K→30K

15.5 - 18.6 mi

Top 38%
×2story building
+58ft-57ft

Overall

11276

Males

7712

M50-54

7712

30K→35K

18.6 - 21.8 mi

Top 38%
×2story building
+98ft-92ft

Overall

11429

Males

7464

M50-54

7464

35K→40K

21.8 - 24.9 mi

Top 39%
×2story building
+36ft-53ft

Overall

11856

Males

7399

M50-54

7399

40K→Finish

24.9 - 26.2 mi

Top 42%
×5story building
+80ft-24ft

Overall

12598

Males

7777

M50-54

7777

Passing Analysis

Category:
Athletes Passed
1723*
Passed By
1640
Net Change
+83
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10009
5K → 10K276*386-110#10009#10119
10K → 15K251*188+63#10119#10056
15K → 21K386*140+246#10056#9810
21K → 25K269145+124#9810#9686
25K → 30K218*431-213#9686#9899
30K → 35K323*350-27#9899#9926
TOTALS1723*1640+83

* 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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Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions