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MARINE CORPS MARATHON 2025

Emily Nielson

Baltimore, MD

Bib: 2045 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 46%
Gender (Female)
#0 / 12338
Top 38%
Masters (Masters Women)
#0 / 5451
Top 27%
Division (F40-44)
#0 / 1527
Top 35%
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
10:46/mi
33:27
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
10:09/mi
1:04:58
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
10:18/mi
1:36:57
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
10:32/mi
2:16:14
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
10:28/mi
2:42:14
↑ 350.2%
30 ft elev
30K· 18.64 mi
11:00/mi
3:16:23
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
11:02/mi
3:50:41
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
10:43/mi
4:24:00
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
10:31/mi
4:38:20
↑ 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
Time2:16:14
Pace10:26 /mi
2nd Half
Distance13.17 mi
Time2:22:06
Pace10:47 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:19:0333:2710:4633:27
10:46
-
10K
6.21 mi08:50:341:04:5810:2731:31
10:09
-0:37
15K
9.32 mi09:22:331:36:5710:2431:59
10:18
+0:09
21K
13.05 mi10:01:502:16:1410:2639:17
10:32
+0:14
25K
15.53 mi10:27:502:42:1410:2726:00
10:28
-0:04
30K
18.64 mi11:01:593:16:2310:3234:09
11:00
+0:32
35K
21.75 mi11:36:173:50:4110:3634:18
11:02
+0:02
40K
24.85 mi12:09:364:24:0010:3733:19
10:43
-0:19
Finish
26.22 mi12:23:564:38:2010:3714:20
10:31
-0:12

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

10:09 /mi

Average Pace

10:37 /mi

Slowest Pace

11:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:07

51% of race

Time at Steady Pace

2:15:13

49% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:37 /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 mi08:19:0333:2710:4633:27
10:46
#16568
10K
6.21 mi08:50:341:04:5810:2731:31
10:09
#16535
15K
9.32 mi09:22:331:36:5710:2431:59
10:18
#16437
21K
13.05 mi10:01:502:16:1410:2639:17
10:32
#16141
25K
15.53 mi10:27:502:42:1410:2726:00
10:28
#15986
30K
18.64 mi11:01:593:16:2310:3234:09
11:00
#15584
35K
21.75 mi11:36:173:50:4110:3634:18
11:02
#15017
40K
24.85 mi12:09:364:24:0010:3733:19
10:43
#14226
Finish
26.22 mi12:23:564:38:2010:3714:20
10:31
#13901
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi165685433638165115409630
10K6.21 mi3.10 mi16535+335389+44637+1166525417651
15K9.32 mi3.11 mi16437+985329+60626+11165115409630
21K13.05 mi3.73 mi16141+2965233+96608+18160155252610
25K15.53 mi2.48 mi15986+1555219+14604+4157175312593
30K18.64 mi3.11 mi15584+4025144+75594+10147025089566
35K21.75 mi3.11 mi15017+5675013+131579+15132044781546
40K24.85 mi3.10 mi14226+7914811+202554+25104363779429
Finish26.22 mi1.37 mi13901+3254716+95538+1699743669397

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×18story building
+279ft-164ft

Overall

16511

Females

5409

F40-44

5409

5K→10K

3.1 - 6.2 mi

Top 55%
×11story building
+103ft-217ft

Overall

16652

Females

5417

F40-44

5417

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+51ft-55ft

Overall

16511

Females

5409

F40-44

5409

15K→21K

9.3 - 13.1 mi

Top 53%
×1story
+20ft-37ft

Overall

16015

Females

5252

F40-44

5252

21K→25K

13.1 - 15.5 mi

Top 52%
×2story building
+35ft-8ft

Overall

15717

Females

5312

F40-44

5312

25K→30K

15.5 - 18.6 mi

Top 49%
×2story building
+58ft-57ft

Overall

14702

Females

5089

F40-44

5089

30K→35K

18.6 - 21.8 mi

Top 44%
×2story building
+98ft-92ft

Overall

13204

Females

4781

F40-44

4781

35K→40K

21.8 - 24.9 mi

Top 35%
×2story building
+36ft-53ft

Overall

10436

Females

3779

F40-44

3779

40K→Finish

24.9 - 26.2 mi

Top 33%
×5story building
+80ft-24ft

Overall

9974

Females

3669

F40-44

3669

Passing Analysis

Category:
Athletes Passed
4242*
Passed By
1575
Net Change
+2667
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16568
5K → 10K460*427+33#16568#16535
10K → 15K374*276+98#16535#16437
15K → 21K585*289+296#16437#16141
21K → 25K379*224+155#16141#15986
25K → 30K564*162+402#15986#15584
30K → 35K697*130+567#15584#15017
35K → 40K836*45+791#15017#14226
40K → Finish347*22+325#14226#13901
TOTALS4242*1575+2667

* 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