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MARINE CORPS MARATHON 2025

Norma Mersino

Northfield, IL

Bib: 35519 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Gender (Female)
#0 / 12338
Masters (Masters Women)
#0 / 5451
Division (F50-54)
#0 / 1155
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
11:49/mi
36:43
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
10:57/mi
1:10:43
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
10:55/mi
1:44:37
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
11:21/mi
2:26:56
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
12:57/mi
2:59:06
↑ 350.2%
30 ft elev
30K· 18.64 mi
12:36/mi
3:38:14
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
12:58/mi
4:18:30
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
13:41/mi
5:01:00
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
13:04/mi
5:18:49
↑ 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
2:26:5611:16 /mi⚡ faster
2nd Half
2:51:5213:03 /mi+17.0%
Positive split — 17.0% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:20:5336:4311:4936:43
11:49
-
10K
6.21 mi08:54:531:10:4311:2334:00
10:57
-0:52
15K
9.32 mi09:28:471:44:3711:1333:54
10:55
-0:02
21K
13.05 mi10:11:062:26:5611:1642:19
11:21
+0:26
25K
15.53 mi10:43:162:59:0611:3232:10
12:57
+1:36
30K
18.64 mi11:22:243:38:1411:4239:08
12:36
-0:21
35K
21.75 mi12:02:404:18:3011:5340:16
12:58
+0:22
40K
24.85 mi12:45:105:01:0012:0742:30
13:41
+0:43
Finish
26.22 mi13:02:595:18:4912:1017:49
13:04
-0:37

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

10:55 /mi

Average Pace

12:10 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:56

46% of race

Time at Steady Pace

2:09:23

41% of race

Time at Slower Pace

42:30

13% of race

Average Pace: 12:10 /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 mi08:20:5336:4311:4936:43
11:49
#22971
10K
6.21 mi08:54:531:10:4311:2334:00
10:57
#22337
15K
9.32 mi09:28:471:44:3711:1333:54
10:55
#21555
21K
13.05 mi10:11:062:26:5611:1642:19
11:21
#20836
25K
15.53 mi10:43:162:59:0611:3232:10
12:57
#21710
30K
18.64 mi11:22:243:38:1411:4239:08
12:36
#21338
35K
21.75 mi12:02:404:18:3011:5340:16
12:58
#21101
40K
24.85 mi12:45:105:01:0012:0742:30
13:41
#20927
Finish
26.22 mi13:02:595:18:4912:1017:49
13:04
#20800
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi229718447632202427132491
10K6.21 mi3.10 mi22337+6348133+314595+37218487905569
15K9.32 mi3.11 mi21555+7827744+389550+45202427132491
21K13.05 mi3.73 mi20836+7197432+312515+35199457089507
25K15.53 mi2.48 mi21710-8747917-485584-69244659574792
30K18.64 mi3.11 mi21338+3727823+94571+13204537768580
35K21.75 mi3.11 mi21101+2377813+10575-4197607788600
40K24.85 mi3.10 mi20927+1747828-15581-6203598205634
Finish26.22 mi1.37 mi20800+1277809+19577+4193777718554

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×18story building
+279ft-164ft

Overall

20242

Females

7132

F50-54

7132

5K→10K

3.1 - 6.2 mi

Top 73%
×11story building
+103ft-217ft

Overall

21848

Females

7905

F50-54

7905

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+51ft-55ft

Overall

20242

Females

7132

F50-54

7132

15K→21K

9.3 - 13.1 mi

Top 66%
×1story
+20ft-37ft

Overall

19945

Females

7089

F50-54

7089

21K→25K

13.1 - 15.5 mi

Top 81%
×2story building
+35ft-8ft

Overall

24465

Females

9574

F50-54

9574

25K→30K

15.5 - 18.6 mi

Top 68%
×2story building
+58ft-57ft

Overall

20453

Females

7768

F50-54

7768

30K→35K

18.6 - 21.8 mi

Top 66%
×2story building
+98ft-92ft

Overall

19760

Females

7788

F50-54

7788

35K→40K

21.8 - 24.9 mi

Top 68%
×2story building
+36ft-53ft

Overall

20359

Females

8205

F50-54

8205

40K→Finish

24.9 - 26.2 mi

Top 64%
×5story building
+80ft-24ft

Overall

19377

Females

7718

F50-54

7718

Passing Analysis

Category:
Athletes Passed
4367*
Passed By
2196
Net Change
+2171
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22971
5K → 10K846*212+634#22971#22337
10K → 15K869*87+782#22337#21555
15K → 21K921*202+719#21555#20836
21K → 25K163*1037-874#20836#21710
25K → 30K543*171+372#21710#21338
30K → 35K459*222+237#21338#21101
35K → 40K378*204+174#21101#20927
40K → Finish188*61+127#20927#20800
TOTALS4367*2196+2171

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

Passing Charts

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