Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Katie Kempff

Geneva, IL

Bib: 34945 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 30047
Gender (Female)
#0 / 12338
Top 46%
Division (F20-24)
#0 / 1404
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
10:43/mi
33:18
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
10:03/mi
1:04:30
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
10:16/mi
1:36:24
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
10:43/mi
2:16:20
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
10:42/mi
2:42:56
↑ 350.2%
30 ft elev
30K· 18.64 mi
11:08/mi
3:17:30
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
12:11/mi
3:55:20
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
12:27/mi
4:34:00
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
11:45/mi
4:50:02
↑ 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
2:16:2010:27 /mi⚡ faster
2nd Half
2:33:4111:40 /mi+12.7%
Positive split — 12.7% 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 mi08:20:0433:1810:4333:18
10:43
-
10K
6.21 mi08:51:161:04:3010:2331:12
10:03
-0:40
15K
9.32 mi09:23:101:36:2410:2131:54
10:16
+0:13
21K
13.05 mi10:03:062:16:2010:2739:56
10:43
+0:27
25K
15.53 mi10:29:422:42:5610:2926:36
10:42
-0:01
30K
18.64 mi11:04:163:17:3010:3634:34
11:08
+0:26
35K
21.75 mi11:42:063:55:2010:4937:50
12:11
+1:03
40K
24.85 mi12:20:464:34:0011:0138:40
12:27
+0:16
Finish
26.22 mi12:36:484:50:0211:0416:02
11:45
-0:42

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

10:03 /mi

Average Pace

11:04 /mi

Slowest Pace

12:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:03:06

22% of race

Time at Steady Pace

1:39:50

34% of race

Time at Slower Pace

2:07:06

44% of race

Average Pace: 11:04 /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 mi08:20:0433:1810:4333:18
10:43
#16237
10K
6.21 mi08:51:161:04:3010:2331:12
10:03
#16050
15K
9.32 mi09:23:101:36:2410:2131:54
10:16
#16044
21K
13.05 mi10:03:062:16:2010:2739:56
10:43
#16193
25K
15.53 mi10:29:422:42:5610:2926:36
10:42
#16232
30K
18.64 mi11:04:163:17:3010:3634:34
11:08
#15909
35K
21.75 mi11:42:063:55:2010:4937:50
12:11
#16116
40K
24.85 mi12:20:464:34:0011:0138:40
12:27
#16209
Finish
26.22 mi12:36:484:50:0211:0416:02
11:45
#16101
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-24Seg. OverallSeg. FemalesSeg. F20-24
5K3.11 mi3.11 mi162375281835163535335844
10K6.21 mi3.10 mi16050+1875156+125820+15159445124801
15K9.32 mi3.11 mi16044+65172-16822-2163535335844
21K13.05 mi3.73 mi16193-1495255-83829-7169665662891
25K15.53 mi2.48 mi16232-395322-67843-14168705866921
30K18.64 mi3.11 mi15909+3235283+39849-6152535344863
35K21.75 mi3.11 mi16116-2075515-232884-35172616656992
40K24.85 mi3.10 mi16209-935686-171903-19166146570981
Finish26.22 mi1.37 mi16101+1085687-1910-7148785802927

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×18story building
+279ft-164ft

Overall

16353

Females

5335

F20-24

5335

5K→10K

3.1 - 6.2 mi

Top 53%
×11story building
+103ft-217ft

Overall

15944

Females

5124

F20-24

5124

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+51ft-55ft

Overall

16353

Females

5335

F20-24

5335

15K→21K

9.3 - 13.1 mi

Top 56%
×1story
+20ft-37ft

Overall

16966

Females

5662

F20-24

5662

21K→25K

13.1 - 15.5 mi

Top 56%
×2story building
+35ft-8ft

Overall

16870

Females

5866

F20-24

5866

25K→30K

15.5 - 18.6 mi

Top 51%
×2story building
+58ft-57ft

Overall

15253

Females

5344

F20-24

5344

30K→35K

18.6 - 21.8 mi

Top 57%
×2story building
+98ft-92ft

Overall

17261

Females

6656

F20-24

6656

35K→40K

21.8 - 24.9 mi

Top 55%
×2story building
+36ft-53ft

Overall

16614

Females

6570

F20-24

6570

40K→Finish

24.9 - 26.2 mi

Top 50%
×5story building
+80ft-24ft

Overall

14878

Females

5802

F20-24

5802

Passing Analysis

Category:
Athletes Passed
2951*
Passed By
2815
Net Change
+136
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16237
5K → 10K535*348+187#16237#16050
10K → 15K338*332+6#16050#16044
15K → 21K395*544-149#16044#16193
21K → 25K308*347-39#16193#16232
25K → 30K538*215+323#16232#15909
30K → 35K335*542-207#15909#16116
35K → 40K310*403-93#16116#16209
40K → Finish192*84+108#16209#16101
TOTALS2951*2815+136

* 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