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MARINE CORPS MARATHON 2025

Iris Chan

Brooklyn, NY

Bib: 23739 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Gender (Female)
#0 / 12338
Division (F20-24)
#0 / 1404
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
11:46/mi
36:34
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
11:12/mi
1:11:23
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
11:31/mi
1:47:11
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
11:56/mi
2:31:41
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
12:02/mi
3:01:36
↑ 350.2%
30 ft elev
30K· 18.64 mi
13:23/mi
3:43:11
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
13:02/mi
4:23:42
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
13:20/mi
5:05:07
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
14:10/mi
5:24:27
↑ 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
Time2:31:41
Pace11:37 /mi
2nd Half
Distance13.17 mi
Time2:52:46
Pace13:07 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:34:0536:3411:4636:34
11:46
-
10K
6.21 mi09:08:541:11:2311:2934:49
11:12
-0:34
15K
9.32 mi09:44:421:47:1111:3035:48
11:31
+0:19
21K
13.05 mi10:29:122:31:4111:3744:30
11:56
+0:25
25K
15.53 mi10:59:073:01:3611:4129:55
12:02
+0:06
30K
18.64 mi11:40:423:43:1111:5841:35
13:23
+1:21
35K
21.75 mi12:21:134:23:4212:0840:31
13:02
-0:21
40K
24.85 mi13:02:385:05:0712:1741:25
13:20
+0:18
Finish
26.22 mi13:21:585:24:2712:2319:20
14:10
+0:50

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

11:12 /mi

Average Pace

12:23 /mi

Slowest Pace

14:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:10:37

22% of race

Time at Steady Pace

1:50:59

34% of race

Time at Slower Pace

2:22:51

44% of race

Average Pace: 12:22 /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 mi08:34:0536:3411:4636:34
11:46
#22711
10K
6.21 mi09:08:541:11:2311:2934:49
11:12
#22948
15K
9.32 mi09:44:421:47:1111:3035:48
11:31
#23049
21K
13.05 mi10:29:122:31:4111:3744:30
11:56
#22667
25K
15.53 mi10:59:073:01:3611:4129:55
12:02
#22409
30K
18.64 mi11:40:423:43:1111:5841:35
13:23
#22383
35K
21.75 mi12:21:134:23:4212:0840:31
13:02
#21993
40K
24.85 mi13:02:385:05:0712:1741:25
13:20
#21572
Finish
26.22 mi13:21:585:24:2712:2319:20
14:10
#21600
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-24Seg. OverallSeg. FemalesSeg. F20-24
5K3.11 mi3.11 mi227118309117923196(Top 77%)8543(Top 69%)1186(Top 85%)
10K6.21 mi3.10 mi22948-2378425-1161183-423272(Top 77%)8592(Top 70%)1193(Top 85%)
15K9.32 mi3.11 mi23049-1018468-431192-923196(Top 77%)8543(Top 69%)1186(Top 85%)
21K13.05 mi3.73 mi22667+3828313+1551174+1822176(Top 74%)8148(Top 66%)1144(Top 82%)
25K15.53 mi2.48 mi22409+2588243+701169+521771(Top 72%)8218(Top 67%)1138(Top 81%)
30K18.64 mi3.11 mi22383+268335-921172-322754(Top 76%)8891(Top 72%)1194(Top 85%)
35K21.75 mi3.11 mi21993+3908237+981156+1620005(Top 67%)7907(Top 64%)1111(Top 79%)
40K24.85 mi3.10 mi21572+4218152+851143+1319354(Top 64%)7735(Top 63%)1095(Top 78%)
Finish26.22 mi1.37 mi21600-288191-391148-522576(Top 75%)9132(Top 74%)1229(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×18story building
+279ft-164ft

Overall

23196

Females

8543

F20-24

8543

5K→10K

3.1 - 6.2 mi

Top 77%
×11story building
+103ft-217ft

Overall

23272

Females

8592

F20-24

8592

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+51ft-55ft

Overall

23196

Females

8543

F20-24

8543

15K→21K

9.3 - 13.1 mi

Top 74%
×1story
+20ft-37ft

Overall

22176

Females

8148

F20-24

8148

21K→25K

13.1 - 15.5 mi

Top 72%
×2story building
+35ft-8ft

Overall

21771

Females

8218

F20-24

8218

25K→30K

15.5 - 18.6 mi

Top 76%
×2story building
+58ft-57ft

Overall

22754

Females

8891

F20-24

8891

30K→35K

18.6 - 21.8 mi

Top 67%
×2story building
+98ft-92ft

Overall

20005

Females

7907

F20-24

7907

35K→40K

21.8 - 24.9 mi

Top 64%
×2story building
+36ft-53ft

Overall

19354

Females

7735

F20-24

7735

40K→Finish

24.9 - 26.2 mi

Top 75%
×5story building
+80ft-24ft

Overall

22576

Females

9132

F20-24

9132

Passing Analysis

Category:
Athletes Passed
3460*
Passed By
2349
Net Change
+1111
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22711
5K → 10K384*621-237#22711#22948
10K → 15K394*495-101#22948#23049
15K → 21K684*302+382#23049#22667
21K → 25K464*206+258#22667#22409
25K → 30K363*337+26#22409#22383
30K → 35K530*140+390#22383#21993
35K → 40K535*114+421#21993#21572
40K → Finish106*134-28#21572#21600
TOTALS3460*2349+1111

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

📊

Passing Visuals

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