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MARINE CORPS MARATHON 2025

Emma Jackson

Maynard, MA

Bib: 12809 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 35%
Gender (Female)
#0 / 12338
Top 27%
Division (F35-39)
#0 / 1413
Top 27%
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
9:20/mi
29:01
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:39/mi
55:52
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:48/mi
1:23:11
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
11:04/mi
2:04:25
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:31/mi
2:28:04
↑ 350.2%
30 ft elev
30K· 18.64 mi
10:16/mi
2:59:59
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
10:39/mi
3:33:05
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:53/mi
4:06:53
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:14/mi
4:20:51
↑ 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
2:04:259:32 /mi⚡ faster
2nd Half
2:16:2510:21 /mi+9.6%
Positive split — 9.6% 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 mi08:10:1929:019:2029:01
9:20
-
10K
6.21 mi08:37:1055:528:5926:51
8:39
-0:41
15K
9.32 mi09:04:291:23:118:5527:19
8:48
+0:09
21K
13.05 mi09:45:432:04:259:3241:14
11:04
+2:16
25K
15.53 mi10:09:222:28:049:3223:39
9:31
-1:33
30K
18.64 mi10:41:172:59:599:3931:55
10:16
+0:45
35K
21.75 mi11:14:233:33:059:4833:06
10:39
+0:23
40K
24.85 mi11:48:114:06:539:5633:48
10:53
+0:14
Finish
26.22 mi12:02:094:20:519:5713:58
10:14
-0:39

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

8:39 /mi

Average Pace

9:57 /mi

Slowest Pace

11:04 /mi

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Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:46:50

41% of race

Time at Steady Pace

1:18:59

30% of race

Time at Slower Pace

1:15:02

29% of race

Average Pace: 9:57 /mi

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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 mi08:10:1929:019:2029:01
9:20
#7621
10K
6.21 mi08:37:1055:528:5926:51
8:39
#7277
15K
9.32 mi09:04:291:23:118:5527:19
8:48
#7336
21K
13.05 mi09:45:432:04:259:3241:14
11:04
#10997
25K
15.53 mi10:09:222:28:049:3223:39
9:31
#10922
30K
18.64 mi10:41:172:59:599:3931:55
10:16
#10926
35K
21.75 mi11:14:233:33:059:4833:06
10:39
#10876
40K
24.85 mi11:48:114:06:539:5633:48
10:53
#10747
Finish
26.22 mi12:02:094:20:519:5713:58
10:14
#10555
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
5K3.11 mi3.11 mi7621189323276991926231
10K6.21 mi3.10 mi7277+3441764+129217+1570301668212
15K9.32 mi3.11 mi7336-591789-25221-476991926231
21K13.05 mi3.73 mi10997-36613081-1292358-137186446474743
25K15.53 mi2.48 mi10922+753078+3355+3112383345388
30K18.64 mi3.11 mi10926-43152-74368-13117093763416
35K21.75 mi3.11 mi10876+503258-106372-4116804086460
40K24.85 mi3.10 mi10747+1293332-74384-12110924088453
Finish26.22 mi1.37 mi10555+1923299+33377+789293201366

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×18story building
+279ft-164ft

Overall

7699

Females

1926

F35-39

1926

5K→10K

3.1 - 6.2 mi

Top 23%
×11story building
+103ft-217ft

Overall

7030

Females

1668

F35-39

1668

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+51ft-55ft

Overall

7699

Females

1926

F35-39

1926

15K→21K

9.3 - 13.1 mi

Top 62%
×1story
+20ft-37ft

Overall

18644

Females

6474

F35-39

6474

21K→25K

13.1 - 15.5 mi

Top 37%
×2story building
+35ft-8ft

Overall

11238

Females

3345

F35-39

3345

25K→30K

15.5 - 18.6 mi

Top 39%
×2story building
+58ft-57ft

Overall

11709

Females

3763

F35-39

3763

30K→35K

18.6 - 21.8 mi

Top 39%
×2story building
+98ft-92ft

Overall

11680

Females

4086

F35-39

4086

35K→40K

21.8 - 24.9 mi

Top 37%
×2story building
+36ft-53ft

Overall

11092

Females

4088

F35-39

4088

40K→Finish

24.9 - 26.2 mi

Top 30%
×5story building
+80ft-24ft

Overall

8929

Females

3201

F35-39

3201

Passing Analysis

Category:
Athletes Passed
2272*
Passed By
5206
Net Change
-2934
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7621
5K → 10K521*177+344#7621#7277
10K → 15K177*236-59#7277#7336
15K → 21K11*3672-3661#7336#10997
21K → 25K263*188+75#10997#10922
25K → 30K294*298-4#10922#10926
30K → 35K388*338+50#10926#10876
35K → 40K390*261+129#10876#10747
40K → Finish228*36+192#10747#10555
TOTALS2272*5206-2934

* 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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Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions