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MARINE CORPS MARATHON 2025

Byron Chen

Sacramento, CA

Bib: 3629 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 9%
Gender (Male)
#0 / 17709
Top 12%
Masters (Masters Men)
#0 / 8330
Top 7%
Division (M45-49)
#0 / 1775
Top 9%
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
8:28/mi
26:18
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
7:47/mi
50:29
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
7:52/mi
1:14:55
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
7:52/mi
1:44:15
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
7:39/mi
2:03:16
↑ 350.2%
30 ft elev
30K· 18.64 mi
7:52/mi
2:27:43
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
7:56/mi
2:52:21
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
9:12/mi
3:20:56
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
9:09/mi
3:33:25
↑ 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
Time1:44:15
Pace7:59 /mi
2nd Half
Distance13.17 mi
Time1:49:09
Pace8:17 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:51:2926:188:2826:18
8:28
-
10K
6.21 mi08:15:4050:298:0724:11
7:47
-0:41
15K
9.32 mi08:40:061:14:558:0224:26
7:52
+0:05
21K
13.05 mi09:09:261:44:157:5929:20
7:52
0:00
25K
15.53 mi09:28:272:03:167:5619:01
7:39
-0:13
30K
18.64 mi09:52:542:27:437:5524:27
7:52
+0:13
35K
21.75 mi10:17:322:52:217:5524:38
7:56
+0:04
40K
24.85 mi10:46:073:20:568:0528:35
9:12
+1:16
Finish
26.22 mi10:58:363:33:258:0912:29
9:09
-0:03

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

7:39 /mi

Average Pace

8:09 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:26:03

68% of race

Time at Slower Pace

1:07:22

32% of race

Average Pace: 8:08 /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 mi07:51:2926:188:2826:18
8:28
#3081
10K
6.21 mi08:15:4050:298:0724:11
7:47
#3065
15K
9.32 mi08:40:061:14:558:0224:26
7:52
#3084
21K
13.05 mi09:09:261:44:157:5929:20
7:52
#2860
25K
15.53 mi09:28:272:03:167:5619:01
7:39
#2762
30K
18.64 mi09:52:542:27:437:5524:27
7:52
#2523
35K
21.75 mi10:17:322:52:217:5524:38
7:56
#2284
40K
24.85 mi10:46:073:20:568:0528:35
9:12
#2540
Finish
26.22 mi10:58:363:33:258:0912:29
9:09
#2571
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3081250618931692583191
10K6.21 mi3.10 mi3065+162505+1183+630182477177
15K9.32 mi3.11 mi3084-192525-20180+331692583191
21K13.05 mi3.73 mi2860+2242350+175171+924001987150
25K15.53 mi2.48 mi2762+982266+84168+323511926148
30K18.64 mi3.11 mi2523+2392064+202156+1219851614124
35K21.75 mi3.11 mi2284+2391864+200146+1017171391109
40K24.85 mi3.10 mi2540-2562043-179165-1948273409276
Finish26.22 mi1.37 mi2571-312050-7163+247123299258

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×18story building
+279ft-164ft

Overall

3169

Males

2583

M45-49

2583

5K→10K

3.1 - 6.2 mi

Top 10%
×11story building
+103ft-217ft

Overall

3018

Males

2477

M45-49

2477

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+51ft-55ft

Overall

3169

Males

2583

M45-49

2583

15K→21K

9.3 - 13.1 mi

Top 8%
×1story
+20ft-37ft

Overall

2400

Males

1987

M45-49

1987

21K→25K

13.1 - 15.5 mi

Top 8%
×2story building
+35ft-8ft

Overall

2351

Males

1926

M45-49

1926

25K→30K

15.5 - 18.6 mi

Top 7%
×2story building
+58ft-57ft

Overall

1985

Males

1614

M45-49

1614

30K→35K

18.6 - 21.8 mi

Top 6%
×2story building
+98ft-92ft

Overall

1717

Males

1391

M45-49

1391

35K→40K

21.8 - 24.9 mi

Top 16%
×2story building
+36ft-53ft

Overall

4827

Males

3409

M45-49

3409

40K→Finish

24.9 - 26.2 mi

Top 16%
×5story building
+80ft-24ft

Overall

4712

Males

3299

M45-49

3299

Passing Analysis

Category:
Athletes Passed
1258*
Passed By
748
Net Change
+510
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3081
5K → 10K190*174+16#3081#3065
10K → 15K101*120-19#3065#3084
15K → 21K249*25+224#3084#2860
21K → 25K12022+98#2860#2762
25K → 30K257*18+239#2762#2523
30K → 35K245*6+239#2523#2284
35K → 40K47*303-256#2284#2540
40K → Finish49*80-31#2540#2571
TOTALS1258*748+510

* 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