Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Gretchen Koch

Mercer, WI

Bib: 9030 F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 30047
Top 19%
Gender (Female)
#0 / 12338
Top 12%
Masters (Masters Women)
#0 / 5451
Top 6%
Division (F40-44)
#0 / 1527
Top 10%
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
8:30/mi
26:23
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:04/mi
51:26
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:01/mi
1:16:20
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:19/mi
1:47:21
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:21/mi
2:08:07
↑ 350.2%
30 ft elev
30K· 18.64 mi
9:13/mi
2:36:44
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:44/mi
3:06:58
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:41/mi
3:40:09
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:44/mi
3:54:48
↑ 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
Time1:47:21
Pace8:14 /mi
2nd Half
Distance13.17 mi
Time2:07:26
Pace9:41 /mi
📊Positive Split: 18.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:48:4326:238:3026:23
8:30
-
10K
6.21 mi08:13:4651:268:1725:03
8:04
-0:26
15K
9.32 mi08:38:401:16:208:1124:54
8:01
-0:03
21K
13.05 mi09:09:411:47:218:1431:01
8:19
+0:18
25K
15.53 mi09:30:272:08:078:1520:46
8:21
+0:02
30K
18.64 mi09:59:042:36:448:2428:37
9:13
+0:52
35K
21.75 mi10:29:183:06:588:3630:14
9:44
+0:31
40K
24.85 mi11:02:293:40:098:5133:11
10:41
+0:57
Finish
26.22 mi11:17:083:54:488:5814:39
10:44
+0:03

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

8:01 /mi

Average Pace

8:58 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:08:07

55% of race

Time at Slower Pace

1:46:41

45% of race

Average Pace: 8:57 /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 mi07:48:4326:238:3026:23
8:30
#3249
10K
6.21 mi08:13:4651:268:1725:03
8:04
#3681
15K
9.32 mi08:38:401:16:208:1124:54
8:01
#3655
21K
13.05 mi09:09:411:47:218:1431:01
8:19
#3740
25K
15.53 mi09:30:272:08:078:1520:46
8:21
#3878
30K
18.64 mi09:59:042:36:448:2428:37
9:13
#4219
35K
21.75 mi10:29:183:06:588:3630:14
9:44
#4615
40K
24.85 mi11:02:293:40:098:5133:11
10:41
#5349
Finish
26.22 mi11:17:083:54:488:5814:39
10:44
#5656
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi324961465371271580
10K6.21 mi3.10 mi3681-432695-8175-10417781895
15K9.32 mi3.11 mi3655+26691+475371271580
21K13.05 mi3.73 mi3740-85717-2678-3402280091
25K15.53 mi2.48 mi3878-138765-4889-1150371140127
30K18.64 mi3.11 mi4219-341892-127107-1871141912205
35K21.75 mi3.11 mi4615-3961047-155120-1380752476269
40K24.85 mi3.10 mi5349-7341331-284145-25102883712423
Finish26.22 mi1.37 mi5656-3071452-121160-15108894090452

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

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

Overall

3712

Females

715

F40-44

715

5K→10K

3.1 - 6.2 mi

Top 14%
×11story building
+103ft-217ft

Overall

4177

Females

818

F40-44

818

10K→15K

6.2 - 9.3 mi

Top 12%
×3story building
+51ft-55ft

Overall

3712

Females

715

F40-44

715

15K→21K

9.3 - 13.1 mi

Top 13%
×1story
+20ft-37ft

Overall

4022

Females

800

F40-44

800

21K→25K

13.1 - 15.5 mi

Top 17%
×2story building
+35ft-8ft

Overall

5037

Females

1140

F40-44

1140

25K→30K

15.5 - 18.6 mi

Top 24%
×2story building
+58ft-57ft

Overall

7114

Females

1912

F40-44

1912

30K→35K

18.6 - 21.8 mi

Top 27%
×2story building
+98ft-92ft

Overall

8075

Females

2476

F40-44

2476

35K→40K

21.8 - 24.9 mi

Top 34%
×2story building
+36ft-53ft

Overall

10288

Females

3712

F40-44

3712

40K→Finish

24.9 - 26.2 mi

Top 36%
×5story building
+80ft-24ft

Overall

10889

Females

4090

F40-44

4090

Passing Analysis

Category:
Athletes Passed
523*
Passed By
2930
Net Change
-2407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3249
5K → 10K38*470-432#3249#3681
10K → 15K122*96+26#3681#3655
15K → 21K74*159-85#3655#3740
21K → 25K54192-138#3740#3878
25K → 30K58*399-341#3878#4219
30K → 35K89*485-396#4219#4615
35K → 40K59*793-734#4615#5349
40K → Finish29*336-307#5349#5656
TOTALS523*2930-2407

* 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