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MARINE CORPS MARATHON 2025

Karen Zhong

Plainsboro, NJ

Bib: 6597 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 16%
Gender (Female)
#0 / 12338
Top 9%
Masters (Masters Women)
#0 / 5451
Top 5%
Division (F55-59)
#0 / 873
Top 1%
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
8:30/mi
55:15
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:30/mi
1:21:41
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:37/mi
1:53:47
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:24/mi
2:14:40
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:41/mi
2:41:39
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
8:52/mi
3:09:11
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
8:57/mi
3:36:59
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:16/mi
3:49:38
↑ 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
Time1:53:47
Pace8:43 /mi
2nd Half
Distance13.17 mi
Time1:55:50
Pace8:48 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:54:2128:529:1728:52
9:17
-
10K
6.21 mi08:20:4455:158:5326:23
8:30
-0:47
15K
9.32 mi08:47:101:21:418:4626:26
8:30
0:00
21K
13.05 mi09:19:161:53:478:4332:06
8:37
+0:07
25K
15.53 mi09:40:092:14:408:4020:53
8:24
-0:13
30K
18.64 mi10:07:082:41:398:4026:59
8:41
+0:17
35K
21.75 mi10:34:403:09:118:4227:32
8:52
+0:11
40K
24.85 mi11:02:283:36:598:4427:48
8:57
+0:05
Finish
26.22 mi11:15:073:49:388:4612:39
9:16
+0:19

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

8:24 /mi

Average Pace

8:46 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:07

82% of race

Time at Steady Pace

41:31

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:45 /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 mi07:54:2128:529:1728:52
9:17
#7284
10K
6.21 mi08:20:4455:158:5326:23
8:30
#6630
15K
9.32 mi08:47:101:21:418:4626:26
8:30
#6323
21K
13.05 mi09:19:161:53:478:4332:06
8:37
#5952
25K
15.53 mi09:40:092:14:408:4020:53
8:24
#5766
30K
18.64 mi10:07:082:41:398:4026:59
8:41
#5397
35K
21.75 mi10:34:403:09:118:4227:32
8:52
#5097
40K
24.85 mi11:02:283:36:598:4427:48
8:57
#4732
Finish
26.22 mi11:15:073:49:388:4612:39
9:16
#4714
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi72841778255853(Top 19%)1322(Top 11%)18(Top 2%)
10K6.21 mi3.10 mi6630+6541553+22520+56096(Top 20%)1349(Top 11%)18(Top 2%)
15K9.32 mi3.11 mi6323+3071459+9419+15853(Top 19%)1322(Top 11%)18(Top 2%)
21K13.05 mi3.73 mi5952+3711335+12416+35330(Top 18%)1160(Top 9%)14(Top 2%)
25K15.53 mi2.48 mi5766+1861289+4617-15271(Top 18%)1201(Top 10%)16(Top 2%)
30K18.64 mi3.11 mi5397+3691215+7416+14570(Top 15%)1060(Top 9%)13(Top 2%)
35K21.75 mi3.11 mi5097+3001188+2714+24480(Top 15%)1152(Top 9%)15(Top 2%)
40K24.85 mi3.10 mi4732+3651134+5412+23947(Top 13%)1076(Top 9%)17(Top 2%)
Finish26.22 mi1.37 mi4714+181156-22125132(Top 17%)1589(Top 13%)22(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×18story building
+279ft-164ft

Overall

5853

Females

1322

F55-59

1322

5K→10K

3.1 - 6.2 mi

Top 20%
×11story building
+103ft-217ft

Overall

6096

Females

1349

F55-59

1349

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+51ft-55ft

Overall

5853

Females

1322

F55-59

1322

15K→21K

9.3 - 13.1 mi

Top 18%
×1story
+20ft-37ft

Overall

5330

Females

1160

F55-59

1160

21K→25K

13.1 - 15.5 mi

Top 18%
×2story building
+35ft-8ft

Overall

5271

Females

1201

F55-59

1201

25K→30K

15.5 - 18.6 mi

Top 15%
×2story building
+58ft-57ft

Overall

4570

Females

1060

F55-59

1060

30K→35K

18.6 - 21.8 mi

Top 15%
×2story building
+98ft-92ft

Overall

4480

Females

1152

F55-59

1152

35K→40K

21.8 - 24.9 mi

Top 13%
×2story building
+36ft-53ft

Overall

3947

Females

1076

F55-59

1076

40K→Finish

24.9 - 26.2 mi

Top 17%
×5story building
+80ft-24ft

Overall

5132

Females

1589

F55-59

1589

Passing Analysis

Category:
Athletes Passed
3054*
Passed By
484
Net Change
+2570
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7284
5K → 10K728*74+654#7284#6630
10K → 15K366*59+307#6630#6323
15K → 21K430*59+371#6323#5952
21K → 25K24559+186#5952#5766
25K → 30K407*38+369#5766#5397
30K → 35K367*67+300#5397#5097
35K → 40K418*53+365#5097#4732
40K → Finish93*75+18#4732#4714
TOTALS3054*484+2570

* 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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Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions