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BOSTON MARATHON 2025

Marc Cohen

Bib: 26354•M

SC

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:48/mi
24:15
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
47:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:11:10
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:35:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:41:09
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:00:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:44/mi
2:28:00
↑ 181↓ 1480.2%
20M
9:02/mi
2:40:16
↑ 64↓ 500.2%
21M
9:26/mi
2:49:42
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
2:56:13
↑ 17↓ 861.7%
23M
9:02/mi
3:07:31
↑ 23↓ 630.6%
24M
8:56/mi
3:16:27
↓ 821.3%
40K· 24.85 mi
8:58/mi
3:24:07
↓ 200.3%
25.2M
9:43/mi
3:27:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:36:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:09
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:55:02
Pace8:47 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:4824:157:4824:15
7:48
-
10K
6.21 mi12:03:0547:327:3923:17
7:30
-0:18
15K
9.32 mi12:26:431:11:107:3823:38
7:36
+0:06
20K
12.43 mi12:51:171:35:447:4224:34
7:54
+0:18
Half
13.11 mi12:56:421:41:097:435:25
7:56
+0:02
25K
15.53 mi13:16:262:00:537:4719:44
8:08
+0:12
30K
18.64 mi13:43:332:28:007:5627:07
8:44
+0:36
20M
20.00 mi13:55:492:40:168:0112:16
9:02
+0:18
21M
21.00 mi14:05:152:49:428:059:26
9:26
+0:24
35K
21.75 mi14:11:462:56:138:066:31
8:43
-0:43
23M
23.00 mi14:23:043:07:318:0911:18
9:02
+0:19
24M
24.00 mi14:32:003:16:278:118:56
8:56
-0:06
40K
24.85 mi14:39:403:24:078:137:40
8:58
+0:02
25.2M
25.20 mi14:43:013:27:288:143:21
9:43
+0:45
Finish
26.22 mi14:51:443:36:118:158:43
8:33
-1:10

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

7:30 /mi

Average Pace

8:15 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:53

56% of race

Time at Steady Pace

1:22:31

38% of race

Time at Slower Pace

12:47

6% of race

Average Pace: 8:15 /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 mi11:39:4824:157:4824:15
7:48
#14851
10K
6.21 mi12:03:0547:327:3923:17
7:30
#13494
15K
9.32 mi12:26:431:11:107:3823:38
7:36
#13181
20K
12.43 mi12:51:171:35:447:4224:34
7:54
#13398
Half
13.11 mi12:56:421:41:097:435:25
7:56
#13505
25K
15.53 mi13:16:262:00:537:4719:44
8:08
#13735
30K
18.64 mi13:43:332:28:007:5627:07
8:44
#14186
20M
20.00 mi13:55:492:40:168:0112:16
9:02
#14435
21M
21.00 mi14:05:152:49:428:059:26
9:26
#14512
35K
21.75 mi14:11:462:56:138:066:31
8:43
#14596
23M
23.00 mi14:23:043:07:318:0911:18
9:02
#14685
24M
24.00 mi14:32:003:16:278:118:56
8:56
#14784
40K
24.85 mi14:39:403:24:078:137:40
8:58
#14826
25.2M
25.20 mi14:43:013:27:288:143:21
9:43
#14832
Finish
26.22 mi14:51:443:36:118:158:43
8:33
#14884
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi14851103721037212645(Top 45%)9363(Top 58%)9363(Top 166%)
10K6.21 mi3.10 mi13494+13579813+5599813+55912039(Top 42%)9171(Top 57%)9171(Top 163%)
15K9.32 mi3.11 mi13181+3139645+1689645+16812645(Top 45%)9363(Top 58%)9363(Top 166%)
20K12.43 mi3.11 mi13398-2179704-599704-5914142(Top 50%)9931(Top 62%)9931(Top 176%)
Half13.11 mi0.68 mi13505-1079733-299733-2915352(Top 54%)10489(Top 65%)10489(Top 186%)
25K15.53 mi2.42 mi13735-2309806-739806-7314888(Top 52%)10154(Top 63%)10154(Top 180%)
30K18.64 mi3.11 mi14186-4519931-1259931-12516147(Top 57%)10554(Top 66%)10554(Top 187%)
20M20.00 mi1.36 mi14435-24910005-7410005-7416900(Top 59%)10765(Top 67%)10765(Top 191%)
21M21.00 mi1.00 mi14512-7710028-2310028-2315766(Top 56%)10139(Top 63%)10139(Top 180%)
35K21.75 mi0.75 mi14596-8410050-2210050-2216709(Top 59%)10483(Top 65%)10483(Top 186%)
23M23.00 mi1.25 mi14685-8910048+210048+216390(Top 58%)10232(Top 64%)10232(Top 181%)
24M24.00 mi1.00 mi14784-9910061-1310061-1316990(Top 60%)10447(Top 65%)10447(Top 185%)
40K24.85 mi0.85 mi14826-4210050+1110050+1116082(Top 57%)9955(Top 62%)9955(Top 176%)
25.2M25.20 mi0.35 mi14832-610049+110049+115625(Top 55%)9691(Top 60%)9691(Top 172%)
Finish26.22 mi1.02 mi14884-5210033+1610033+1616545(Top 58%)10174(Top 63%)10174(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12645

Males

9363

M18-39

9363

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

12039

Males

9171

M18-39

9171

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12645

Males

9363

M18-39

9363

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14142

Males

9931

M18-39

9931

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

15352

Males

10489

M18-39

10489

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14888

Males

10154

M18-39

10154

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16147

Males

10554

M18-39

10554

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16900

Males

10765

M18-39

10765

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15766

Males

10139

M18-39

10139

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16709

Males

10483

M18-39

10483

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16390

Males

10232

M18-39

10232

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

16990

Males

10447

M18-39

10447

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16082

Males

9955

M18-39

9955

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15625

Males

9691

M18-39

9691

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16545

Males

10174

M18-39

10174

Passing Analysis

Category:
Athletes Passed
2624
Passed By
2657
Net Change
-33
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14851
5K → 10K137821+1357#14851#13494
10K → 15K37966+313#13494#13181
15K → 20K142359-217#13181#13398
20K → Half11118-107#13398#13505
Half → 25K122352-230#13505#13735
25K → 30K138589-451#13735#14186
30K → 20M57306-249#14186#14435
20M → 21M91168-77#14435#14512
21M → 35K45129-84#14512#14596
35K → 23M67156-89#14596#14685
23M → 24M47146-99#14685#14784
24M → 40K5496-42#14784#14826
40K → 25.2M3541-6#14826#14832
25.2M → Finish58110-52#14832#14884
TOTALS26242657-33
📊

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

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing