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MARINE CORPS MARATHON 2025

Michael Gielbeda

Clifton, NJ

Bib: 39987 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 29%
Gender (Male)
#0 / 17709
Top 35%
Masters (Masters Men)
#0 / 8330
Top 26%
Division (M50-54)
#0 / 1638
Top 26%
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
9:23/mi
29:08
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
8:53/mi
56:44
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
8:54/mi
1:24:22
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
9:07/mi
1:58:23
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
9:02/mi
2:20:50
↑ 350.2%
30 ft elev
30K· 18.64 mi
9:12/mi
2:49:26
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
9:53/mi
3:20:07
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
11:12/mi
3:54:56
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
11:30/mi
4:10:37
↑ 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
Time1:58:23
Pace9:04 /mi
2nd Half
Distance13.17 mi
Time2:12:14
Pace10:02 /mi
📊Positive Split: 11.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:49:5629:089:2329:08
9:23
-
10K
6.21 mi08:17:3256:449:0827:36
8:53
-0:30
15K
9.32 mi08:45:101:24:229:0327:38
8:54
+0:01
21K
13.05 mi09:19:111:58:239:0434:01
9:07
+0:13
25K
15.53 mi09:41:382:20:509:0422:27
9:02
-0:05
30K
18.64 mi10:10:142:49:269:0528:36
9:12
+0:10
35K
21.75 mi10:40:553:20:079:1230:41
9:53
+0:41
40K
24.85 mi11:15:443:54:569:2734:49
11:12
+1:19
Finish
26.22 mi11:31:254:10:379:3415:41
11:30
+0:18

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

8:53 /mi

Average Pace

9:34 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:49:26

68% of race

Time at Slower Pace

1:21:11

32% of race

Average Pace: 9:33 /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 mi07:49:5629:089:2329:08
9:23
#7868
10K
6.21 mi08:17:3256:449:0827:36
8:53
#8241
15K
9.32 mi08:45:101:24:229:0327:38
8:54
#8259
21K
13.05 mi09:19:111:58:239:0434:01
9:07
#8206
25K
15.53 mi09:41:382:20:509:0422:27
9:02
#8285
30K
18.64 mi10:10:142:49:269:0528:36
9:12
#7854
35K
21.75 mi10:40:553:20:079:1230:41
9:53
#7917
40K
24.85 mi11:15:443:54:569:2734:49
11:12
#8405
Finish
26.22 mi11:31:254:10:379:3415:41
11:30
#8610
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi786858953898433(Top 28%)6272(Top 35%)414(Top 25%)
10K6.21 mi3.10 mi8241-3736150-255411-228694(Top 29%)6470(Top 37%)445(Top 27%)
15K9.32 mi3.11 mi8259-186165-15408+38433(Top 28%)6272(Top 35%)414(Top 25%)
21K13.05 mi3.73 mi8206+536143+22407+18530(Top 28%)6317(Top 36%)410(Top 25%)
25K15.53 mi2.48 mi8285-796166-23405+28993(Top 30%)6556(Top 37%)439(Top 27%)
30K18.64 mi3.11 mi7854+4315835+331383+227084(Top 24%)5183(Top 29%)328(Top 20%)
35K21.75 mi3.11 mi7917-635806+29388-58653(Top 29%)5928(Top 33%)408(Top 25%)
40K24.85 mi3.10 mi8405-4886029-223417-2912346(Top 41%)7670(Top 43%)569(Top 35%)
Finish26.22 mi1.37 mi8610-2056108-79432-1513951(Top 46%)8552(Top 48%)606(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×18story building
+279ft-164ft

Overall

8433

Males

6272

M50-54

6272

5K→10K

3.1 - 6.2 mi

Top 29%
×11story building
+103ft-217ft

Overall

8694

Males

6470

M50-54

6470

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+51ft-55ft

Overall

8433

Males

6272

M50-54

6272

15K→21K

9.3 - 13.1 mi

Top 28%
×1story
+20ft-37ft

Overall

8530

Males

6317

M50-54

6317

21K→25K

13.1 - 15.5 mi

Top 30%
×2story building
+35ft-8ft

Overall

8993

Males

6556

M50-54

6556

25K→30K

15.5 - 18.6 mi

Top 24%
×2story building
+58ft-57ft

Overall

7084

Males

5183

M50-54

5183

30K→35K

18.6 - 21.8 mi

Top 29%
×2story building
+98ft-92ft

Overall

8653

Males

5928

M50-54

5928

35K→40K

21.8 - 24.9 mi

Top 41%
×2story building
+36ft-53ft

Overall

12346

Males

7670

M50-54

7670

40K→Finish

24.9 - 26.2 mi

Top 46%
×5story building
+80ft-24ft

Overall

13951

Males

8552

M50-54

8552

Passing Analysis

Category:
Athletes Passed
1857*
Passed By
2599
Net Change
-742
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7868
5K → 10K135*508-373#7868#8241
10K → 15K220*238-18#8241#8259
15K → 21K284*231+53#8259#8206
21K → 25K170*249-79#8206#8285
25K → 30K508*77+431#8285#7854
30K → 35K328*391-63#7854#7917
35K → 40K151*639-488#7917#8405
40K → Finish61*266-205#8405#8610
TOTALS1857*2599-742

* 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