Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Jessica Cox

Northfield, IL

Bib: 29989 F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 30047
Gender (Female)
#0 / 12338
Masters (Masters Women)
#0 / 5451
Division (F65-69)
#0 / 159
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
13:06/mi
40:41
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
12:24/mi
1:19:13
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
13:04/mi
1:59:50
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
13:11/mi
2:48:59
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
13:32/mi
3:22:37
↑ 350.2%
30 ft elev
30K· 18.64 mi
13:27/mi
4:04:24
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
14:32/mi
4:49:34
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
15:02/mi
5:36:16
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
13:19/mi
5:54:26
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time2:48:59
Pace12:57 /mi
2nd Half
Distance13.17 mi
Time3:05:27
Pace14:05 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:09:2640:4113:0640:41
13:06
-
10K
6.21 mi08:47:581:19:1312:4538:32
12:24
-0:42
15K
9.32 mi09:28:351:59:5012:5140:37
13:04
+0:40
21K
13.05 mi10:17:442:48:5912:5749:09
13:11
+0:07
25K
15.53 mi10:51:223:22:3713:0333:38
13:32
+0:21
30K
18.64 mi11:33:094:04:2413:0741:47
13:27
-0:05
35K
21.75 mi12:18:194:49:3413:1945:10
14:32
+1:05
40K
24.85 mi13:05:015:36:1613:3246:42
15:02
+0:30
Finish
26.22 mi13:23:115:54:2613:3218:10
13:19
-1:43

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

12:24 /mi

Average Pace

13:32 /mi

Slowest Pace

15:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:32

11% of race

Time at Steady Pace

3:44:02

63% of race

Time at Slower Pace

1:31:52

26% of race

Average Pace: 13:31 /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 mi08:09:2640:4113:0640:41
13:06
#27851
10K
6.21 mi08:47:581:19:1312:4538:32
12:24
#27776
15K
9.32 mi09:28:351:59:5012:5140:37
13:04
#27870
21K
13.05 mi10:17:442:48:5912:5749:09
13:11
#27328
25K
15.53 mi10:51:223:22:3713:0333:38
13:32
#27143
30K
18.64 mi11:33:094:04:2413:0741:47
13:27
#26429
35K
21.75 mi12:18:194:49:3413:1945:10
14:32
#26183
40K
24.85 mi13:05:015:36:1613:3246:42
15:02
#25944
Finish
26.22 mi13:23:115:54:2613:3218:10
13:19
#25601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi27851109791032788611029115
10K6.21 mi3.10 mi27776+7510935+44105-22757110851103
15K9.32 mi3.11 mi27870-9411015-80106-12788611029115
21K13.05 mi3.73 mi27328+54210738+27799+7259051007989
25K15.53 mi2.48 mi27143+18510687+51100-12599210349105
30K18.64 mi3.11 mi26429+71410385+30295+522916896778
35K21.75 mi3.11 mi26183+24610326+5996-124424995991
40K24.85 mi3.10 mi25944+23910261+6594+224202989692
Finish26.22 mi1.37 mi25601+34310114+1479420114801561

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×18story building
+279ft-164ft

Overall

27886

Females

11029

F65-69

11029

5K→10K

3.1 - 6.2 mi

Top 92%
×11story building
+103ft-217ft

Overall

27571

Females

10851

F65-69

10851

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+51ft-55ft

Overall

27886

Females

11029

F65-69

11029

15K→21K

9.3 - 13.1 mi

Top 86%
×1story
+20ft-37ft

Overall

25905

Females

10079

F65-69

10079

21K→25K

13.1 - 15.5 mi

Top 87%
×2story building
+35ft-8ft

Overall

25992

Females

10349

F65-69

10349

25K→30K

15.5 - 18.6 mi

Top 76%
×2story building
+58ft-57ft

Overall

22916

Females

8967

F65-69

8967

30K→35K

18.6 - 21.8 mi

Top 81%
×2story building
+98ft-92ft

Overall

24424

Females

9959

F65-69

9959

35K→40K

21.8 - 24.9 mi

Top 81%
×2story building
+36ft-53ft

Overall

24202

Females

9896

F65-69

9896

40K→Finish

24.9 - 26.2 mi

Top 67%
×5story building
+80ft-24ft

Overall

20114

Females

8015

F65-69

8015

Passing Analysis

Category:
Athletes Passed
3381*
Passed By
1131
Net Change
+2250
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27851
5K → 10K337*262+75#27851#27776
10K → 15K255*349-94#27776#27870
15K → 21K645*103+542#27870#27328
21K → 25K308*123+185#27328#27143
25K → 30K742*28+714#27143#26429
30K → 35K376*130+246#26429#26183
35K → 40K366*127+239#26183#25944
40K → Finish352*9+343#25944#25601
TOTALS3381*1131+2250

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

Passing Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions