Marine Corps Marathon logo
MARINE CORPS MARATHON 2025

Shanna Rivera

Leesburg, VA

Bib: 28708 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 (F40-44)
#0 / 1527
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
12:26/mi
38:38
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
11:38/mi
1:14:47
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
11:29/mi
1:50:28
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
12:51/mi
2:38:24
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
13:22/mi
3:11:38
↑ 350.2%
30 ft elev
30K· 18.64 mi
14:36/mi
3:56:59
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
16:06/mi
4:46:59
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
19:36/mi
5:47:54
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
19:42/mi
6:14:46
↑ 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
Time2:38:24
Pace12:08 /mi
2nd Half
Distance13.17 mi
Time3:36:22
Pace16:26 /mi
📊Positive Split: 36.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:22:3138:3812:2638:38
12:26
-
10K
6.21 mi08:58:401:14:4712:0236:09
11:38
-0:48
15K
9.32 mi09:34:211:50:2811:5135:41
11:29
-0:09
21K
13.05 mi10:22:172:38:2412:0847:56
12:51
+1:22
25K
15.53 mi10:55:313:11:3812:2033:14
13:22
+0:31
30K
18.64 mi11:40:523:56:5912:4345:21
14:36
+1:14
35K
21.75 mi12:30:524:46:5913:1250:00
16:06
+1:30
40K
24.85 mi13:31:475:47:5414:001:00:55
19:36
+3:30
Finish
26.22 mi13:58:396:14:4614:1826:52
19:42
+0:06

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

11:29 /mi

Average Pace

14:18 /mi

Slowest Pace

19:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:50

19% of race

Time at Steady Pace

2:45:09

44% of race

Time at Slower Pace

2:17:47

37% of race

Average Pace: 14:18 /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 mi08:22:3138:3812:2638:38
12:26
#25772
10K
6.21 mi08:58:401:14:4712:0236:09
11:38
#25503
15K
9.32 mi09:34:211:50:2811:5135:41
11:29
#24638
21K
13.05 mi10:22:172:38:2412:0847:56
12:51
#24729
25K
15.53 mi10:55:313:11:3812:2033:14
13:22
#24908
30K
18.64 mi11:40:523:56:5912:4345:21
14:36
#25152
35K
21.75 mi12:30:524:46:5913:1250:00
16:06
#25833
40K
24.85 mi13:31:475:47:5414:001:00:55
19:36
#27235
Finish
26.22 mi13:58:396:14:4614:1826:52
19:42
#27586
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi257729859116723010(Top 77%)8451(Top 68%)988(Top 65%)
10K6.21 mi3.10 mi25503+2699728+1311153+1425198(Top 84%)9585(Top 78%)1135(Top 75%)
15K9.32 mi3.11 mi24638+8659262+4661083+7023010(Top 77%)8451(Top 68%)988(Top 65%)
21K13.05 mi3.73 mi24729-919340-781096-1325022(Top 83%)9588(Top 78%)1131(Top 75%)
25K15.53 mi2.48 mi24908-1799491-1511118-2225587(Top 85%)10148(Top 82%)1215(Top 80%)
30K18.64 mi3.11 mi25152-2449688-1971140-2226042(Top 87%)10557(Top 86%)1261(Top 83%)
35K21.75 mi3.11 mi25833-68110141-4531203-6327685(Top 92%)11383(Top 92%)1376(Top 91%)
40K24.85 mi3.10 mi27235-140210922-7811319-11629480(Top 98%)12125(Top 98%)1482(Top 98%)
Finish26.22 mi1.37 mi27586-35111101-1791340-2129335(Top 98%)12054(Top 98%)1470(Top 97%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×18story building
+279ft-164ft

Overall

23010

Females

8451

F40-44

8451

5K→10K

3.1 - 6.2 mi

Top 84%
×11story building
+103ft-217ft

Overall

25198

Females

9585

F40-44

9585

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+51ft-55ft

Overall

23010

Females

8451

F40-44

8451

15K→21K

9.3 - 13.1 mi

Top 83%
×1story
+20ft-37ft

Overall

25022

Females

9588

F40-44

9588

21K→25K

13.1 - 15.5 mi

Top 85%
×2story building
+35ft-8ft

Overall

25587

Females

10148

F40-44

10148

25K→30K

15.5 - 18.6 mi

Top 87%
×2story building
+58ft-57ft

Overall

26042

Females

10557

F40-44

10557

30K→35K

18.6 - 21.8 mi

Top 92%
×2story building
+98ft-92ft

Overall

27685

Females

11383

F40-44

11383

35K→40K

21.8 - 24.9 mi

Top 98%
×2story building
+36ft-53ft

Overall

29480

Females

12125

F40-44

12125

40K→Finish

24.9 - 26.2 mi

Top 98%
×5story building
+80ft-24ft

Overall

29335

Females

12054

F40-44

12054

Passing Analysis

Category:
Athletes Passed
2541*
Passed By
4355
Net Change
-1814
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25772
5K → 10K524*255+269#25772#25503
10K → 15K917*52+865#25503#24638
15K → 21K471*562-91#24638#24729
21K → 25K261*440-179#24729#24908
25K → 30K227*471-244#24908#25152
30K → 35K108*789-681#25152#25833
35K → 40K18*1420-1402#25833#27235
40K → Finish15*366-351#27235#27586
TOTALS2541*4355-1814

* 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