Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Caroline Keniston

Boston, MA

Bib: 6397 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 30047
Top 14%
Gender (Female)
#0 / 12338
Top 8%
Division (F25-29)
#0 / 2322
Top 11%
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
8:37/mi
26:47
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:01/mi
51:42
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:00/mi
1:16:34
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:15/mi
1:47:20
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:13/mi
2:07:45
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:49/mi
2:35:10
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:16/mi
3:03:56
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
9:22/mi
3:33:03
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:26/mi
3:45:55
↑ 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 on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time1:47:20
Pace8:14 /mi
2nd Half
Distance13.17 mi
Time1:58:34
Pace9:00 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:48:3726:478:3726:47
8:37
-
10K
6.21 mi08:13:3251:428:1924:55
8:01
-0:36
15K
9.32 mi08:38:241:16:348:1324:52
8:00
-0:01
21K
13.05 mi09:09:101:47:208:1430:46
8:15
+0:15
25K
15.53 mi09:29:352:07:458:1320:25
8:13
-0:02
30K
18.64 mi09:57:002:35:108:1927:25
8:49
+0:36
35K
21.75 mi10:25:463:03:568:2728:46
9:16
+0:27
40K
24.85 mi10:54:533:33:038:3429:07
9:22
+0:06
Finish
26.22 mi11:07:453:45:558:3712:52
9:26
+0:04

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

8:00 /mi

Average Pace

8:37 /mi

Slowest Pace

9:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:45

57% of race

Time at Steady Pace

1:38:10

43% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi07:48:3726:478:3726:47
8:37
#3734
10K
6.21 mi08:13:3251:428:1924:55
8:01
#3820
15K
9.32 mi08:38:241:16:348:1324:52
8:00
#3754
21K
13.05 mi09:09:101:47:208:1430:46
8:15
#3728
25K
15.53 mi09:29:352:07:458:1320:25
8:13
#3790
30K
18.64 mi09:57:002:35:108:1927:25
8:49
#3894
35K
21.75 mi10:25:463:03:568:2728:46
9:16
#4057
40K
24.85 mi10:54:533:33:038:3429:07
9:22
#4096
Finish
26.22 mi11:07:453:45:558:3712:52
9:26
#4124
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
5K3.11 mi3.11 mi37347261983665(Top 12%)698(Top 6%)187(Top 8%)
10K6.21 mi3.10 mi3820-86737-11199-13944(Top 13%)749(Top 6%)199(Top 9%)
15K9.32 mi3.11 mi3754+66718+19193+63665(Top 12%)698(Top 6%)187(Top 8%)
21K13.05 mi3.73 mi3728+26712+6194-13804(Top 13%)738(Top 6%)200(Top 9%)
25K15.53 mi2.48 mi3790-62741-29198-44376(Top 15%)950(Top 8%)253(Top 11%)
30K18.64 mi3.11 mi3894-104799-58218-205154(Top 17%)1240(Top 10%)326(Top 14%)
35K21.75 mi3.11 mi4057-163867-68237-196169(Top 21%)1715(Top 14%)472(Top 20%)
40K24.85 mi3.10 mi4096-39936-69254-175470(Top 18%)1651(Top 13%)441(Top 19%)
Finish26.22 mi1.37 mi4124-28967-31261-75686(Top 19%)1808(Top 15%)502(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×18story building
+279ft-164ft

Overall

3665

Females

698

F25-29

698

5K→10K

3.1 - 6.2 mi

Top 13%
×11story building
+103ft-217ft

Overall

3944

Females

749

F25-29

749

10K→15K

6.2 - 9.3 mi

Top 12%
×3story building
+51ft-55ft

Overall

3665

Females

698

F25-29

698

15K→21K

9.3 - 13.1 mi

Top 13%
×1story
+20ft-37ft

Overall

3804

Females

738

F25-29

738

21K→25K

13.1 - 15.5 mi

Top 15%
×2story building
+35ft-8ft

Overall

4376

Females

950

F25-29

950

25K→30K

15.5 - 18.6 mi

Top 17%
×2story building
+58ft-57ft

Overall

5154

Females

1240

F25-29

1240

30K→35K

18.6 - 21.8 mi

Top 21%
×2story building
+98ft-92ft

Overall

6169

Females

1715

F25-29

1715

35K→40K

21.8 - 24.9 mi

Top 18%
×2story building
+36ft-53ft

Overall

5470

Females

1651

F25-29

1651

40K→Finish

24.9 - 26.2 mi

Top 19%
×5story building
+80ft-24ft

Overall

5686

Females

1808

F25-29

1808

Passing Analysis

Category:
Athletes Passed
910*
Passed By
1300
Net Change
-390
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3734
5K → 10K113*199-86#3734#3820
10K → 15K152*86+66#3820#3754
15K → 21K117*91+26#3754#3728
21K → 25K71133-62#3728#3790
25K → 30K96*200-104#3790#3894
30K → 35K110*273-163#3894#4057
35K → 40K187*226-39#4057#4096
40K → Finish64*92-28#4096#4124
TOTALS910*1300-390

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

📊

Passing Visuals

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