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MARINE CORPS MARATHON 2025

Naomi Olsen

Arlington, MA

Bib: 4559 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 17%
Gender (Female)
#0 / 12338
Top 11%
Division (F20-24)
#0 / 1404
Top 18%
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
8:42/mi
27:02
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:22/mi
53:02
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:15/mi
1:18:40
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
8:27/mi
1:50:10
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
8:08/mi
2:10:24
↑ 350.2%
30 ft elev
30K· 18.64 mi
8:28/mi
2:36:41
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
8:49/mi
3:04:03
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:50/mi
3:37:42
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:41/mi
3:52:16
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

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Half Splits

1st Half· via 21KFaster
Distance13.05 mi
Time1:50:10
Pace8:27 /mi
2nd Half
Distance13.17 mi
Time2:02:06
Pace9:16 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:05:0927:028:4227:02
8:42
-
10K
6.21 mi08:31:0953:028:3226:00
8:22
-0:20
15K
9.32 mi08:56:471:18:408:2625:38
8:15
-0:07
21K
13.05 mi09:28:171:50:108:2731:30
8:27
+0:12
25K
15.53 mi09:48:312:10:248:2420:14
8:08
-0:19
30K
18.64 mi10:14:482:36:418:2426:17
8:28
+0:20
35K
21.75 mi10:42:103:04:038:2827:22
8:49
+0:21
40K
24.85 mi11:15:493:37:428:4633:39
10:50
+2:01
Finish
26.22 mi11:30:233:52:168:5214:34
10:41
-0:09

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

8:08 /mi

Average Pace

8:52 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:04:03

79% of race

Time at Slower Pace

48:13

21% of race

Average Pace: 8:52 /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 mi08:05:0927:028:4227:02
8:42
#4061
10K
6.21 mi08:31:0953:028:3226:00
8:22
#4695
15K
9.32 mi08:56:471:18:408:2625:38
8:15
#4640
21K
13.05 mi09:28:171:50:108:2731:30
8:27
#4554
25K
15.53 mi09:48:312:10:248:2420:14
8:08
#4406
30K
18.64 mi10:14:482:36:418:2426:17
8:28
#4209
35K
21.75 mi10:42:103:04:038:2827:22
8:49
#4072
40K
24.85 mi11:15:493:37:428:4633:39
10:50
#4874
Finish
26.22 mi11:30:233:52:168:5214:34
10:41
#5189
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-24Seg. OverallSeg. FemalesSeg. F20-24
5K3.11 mi3.11 mi40618051574556(Top 15%)922(Top 7%)175(Top 12%)
10K6.21 mi3.10 mi4695-634970-165181-245424(Top 18%)1150(Top 9%)204(Top 15%)
15K9.32 mi3.11 mi4640+55956+14176+54556(Top 15%)922(Top 7%)175(Top 12%)
21K13.05 mi3.73 mi4554+86937+19169+74541(Top 15%)948(Top 8%)175(Top 12%)
25K15.53 mi2.48 mi4406+148915+22168+14081(Top 14%)860(Top 7%)164(Top 12%)
30K18.64 mi3.11 mi4209+197888+27165+33748(Top 12%)811(Top 7%)158(Top 11%)
35K21.75 mi3.11 mi4072+137871+17164+14276(Top 14%)1083(Top 9%)217(Top 15%)
40K24.85 mi3.10 mi4874-8021180-309225-6110889(Top 36%)3983(Top 32%)684(Top 49%)
Finish26.22 mi1.37 mi5189-3151297-117250-2510646(Top 35%)3978(Top 32%)718(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×18story building
+279ft-164ft

Overall

4556

Females

922

F20-24

922

5K→10K

3.1 - 6.2 mi

Top 18%
×11story building
+103ft-217ft

Overall

5424

Females

1150

F20-24

1150

10K→15K

6.2 - 9.3 mi

Top 15%
×3story building
+51ft-55ft

Overall

4556

Females

922

F20-24

922

15K→21K

9.3 - 13.1 mi

Top 15%
×1story
+20ft-37ft

Overall

4541

Females

948

F20-24

948

21K→25K

13.1 - 15.5 mi

Top 14%
×2story building
+35ft-8ft

Overall

4081

Females

860

F20-24

860

25K→30K

15.5 - 18.6 mi

Top 12%
×2story building
+58ft-57ft

Overall

3748

Females

811

F20-24

811

30K→35K

18.6 - 21.8 mi

Top 14%
×2story building
+98ft-92ft

Overall

4276

Females

1083

F20-24

1083

35K→40K

21.8 - 24.9 mi

Top 36%
×2story building
+36ft-53ft

Overall

10889

Females

3983

F20-24

3983

40K→Finish

24.9 - 26.2 mi

Top 35%
×5story building
+80ft-24ft

Overall

10646

Females

3978

F20-24

3978

Passing Analysis

Category:
Athletes Passed
1074*
Passed By
2202
Net Change
-1128
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4061
5K → 10K26*660-634#4061#4695
10K → 15K149*94+55#4695#4640
15K → 21K194*108+86#4640#4554
21K → 25K18335+148#4554#4406
25K → 30K237*40+197#4406#4209
30K → 35K215*78+137#4209#4072
35K → 40K45*847-802#4072#4874
40K → Finish25*340-315#4874#5189
TOTALS1074*2202-1128

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

U.S. Marine Corps Community Services (MCCS)

Timing Productions