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BOSTON MARATHON 2025

William Cohen

Bib: 27766•M

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
32:25
Rank: #26621
Start → 5K
10:26/mi
32:25 split
10K· 6.21 mi
1:05:35
Rank: #26593 (+28)
5K → 10K
10:41/mi
33:10 split
15K· 9.32 mi
1:39:32
Rank: #26605 (-12)
10K → 15K
10:56/mi
33:57 split
20K· 12.43 mi
2:15:27
Rank: #26638 (-33)
15K → 20K
11:34/mi
35:55 split
Half· 13.11 mi
2:22:57
Rank: #26631 (+7)
20K → Half
11:00/mi
7:30 split
25K· 15.53 mi
2:53:51
Rank: #26769 (-138)
Half → 25K
12:45/mi
30:54 split
30K· 18.64 mi
3:34:25
Rank: #26776 (-7)
25K → 30K
13:03/mi
40:34 split
20M
3:51:52
Rank: #26764 (+12)
30K → 20M
12:50/mi
17:27 split
21M
4:05:25
Rank: #26730 (+34)
20M → 21M
13:33/mi
13:33 split
35K· 21.75 mi
4:14:47
Rank: #26735 (-5)
21M → 35K
12:31/mi
9:22 split
23M
4:31:13
Rank: #26722 (+13)
35K → 23M
13:08/mi
16:26 split
24M
4:43:14
Rank: #26690 (+32)
23M → 24M
12:01/mi
12:01 split
40K· 24.85 mi
4:54:09
Rank: #26684 (+6)
24M → 40K
12:46/mi
10:55 split
25.2M
4:58:45
Rank: #26667 (+17)
40K → 25.2M
13:20/mi
4:36 split
Finish· 26.22 mi
5:09:56
Rank: #26643 (+24)
25.2M → Finish
10:58/mi
11:11 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:57
Pace10:54 /mi
2nd Half
Distance13.11 mi
Time2:46:59
Pace12:44 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0332:2510:2632:25
10:26
-
10K
6.21 mi12:25:131:05:3510:3333:10
10:41
+0:15
15K
9.32 mi12:59:101:39:3210:4133:57
10:56
+0:15
20K
12.43 mi13:35:052:15:2710:5435:55
11:34
+0:38
Half
13.11 mi13:42:352:22:5710:547:30
11:00
-0:34
25K
15.53 mi14:13:292:53:5111:1130:54
12:45
+1:45
30K
18.64 mi14:54:033:34:2511:3040:34
13:03
+0:18
20M
20.00 mi15:11:303:51:5211:3617:27
12:50
-0:13
21M
21.00 mi15:25:034:05:2511:4113:33
13:33
+0:43
35K
21.75 mi15:34:254:14:4711:439:22
12:31
-1:02
23M
23.00 mi15:50:514:31:1311:4816:26
13:08
+0:37
24M
24.00 mi16:02:524:43:1411:4812:01
12:01
-1:07
40K
24.85 mi16:13:474:54:0911:5010:55
12:46
+0:45
25.2M
25.20 mi16:18:234:58:4511:514:36
13:20
+0:34
Finish
26.22 mi16:29:345:09:5611:5011:11
10:58
-2:22

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

10:26 /mi

Average Pace

11:50 /mi

Slowest Pace

13:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:08

50% of race

Time at Steady Pace

1:20:39

26% of race

Time at Slower Pace

1:15:09

24% of race

Average Pace: 11:49 /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 mi11:52:0332:2510:2632:25
10:26
#26621
10K
6.21 mi12:25:131:05:3510:3333:10
10:41
#26593
15K
9.32 mi12:59:101:39:3210:4133:57
10:56
#26605
20K
12.43 mi13:35:052:15:2710:5435:55
11:34
#26638
Half
13.11 mi13:42:352:22:5710:547:30
11:00
#26631
25K
15.53 mi14:13:292:53:5111:1130:54
12:45
#26769
30K
18.64 mi14:54:033:34:2511:3040:34
13:03
#26776
20M
20.00 mi15:11:303:51:5211:3617:27
12:50
#26764
21M
21.00 mi15:25:034:05:2511:4113:33
13:33
#26730
35K
21.75 mi15:34:254:14:4711:439:22
12:31
#26735
23M
23.00 mi15:50:514:31:1311:4816:26
13:08
#26722
24M
24.00 mi16:02:524:43:1411:4812:01
12:01
#26690
40K
24.85 mi16:13:474:54:0911:5010:55
12:46
#26684
25.2M
25.20 mi16:18:234:58:4511:514:36
13:20
#26667
Finish
26.22 mi16:29:345:09:5611:5011:11
10:58
#26643
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26621154431544326582(Top 94%)15400(Top 96%)15400(Top 273%)
10K6.21 mi3.10 mi26593+2815425+1815425+1826559(Top 94%)15396(Top 96%)15396(Top 273%)
15K9.32 mi3.11 mi26605-1215422+315422+326582(Top 94%)15400(Top 96%)15400(Top 273%)
20K12.43 mi3.11 mi26638-3315429-715429-726697(Top 94%)15418(Top 96%)15418(Top 273%)
Half13.11 mi0.68 mi26631+715422+715422+726491(Top 93%)15309(Top 95%)15309(Top 271%)
25K15.53 mi2.42 mi26769-13815460-3815460-3827111(Top 95%)15547(Top 97%)15547(Top 276%)
30K18.64 mi3.11 mi26776-715438+2215438+2226740(Top 94%)15318(Top 95%)15318(Top 271%)
20M20.00 mi1.36 mi26764+1215428+1015428+1026297(Top 93%)15068(Top 94%)15068(Top 267%)
21M21.00 mi1.00 mi26730+3415404+2415404+2425722(Top 91%)14744(Top 92%)14744(Top 261%)
35K21.75 mi0.75 mi26735-515397+715397+726484(Top 93%)15088(Top 94%)15088(Top 267%)
23M23.00 mi1.25 mi26722+1315381+1615381+1626540(Top 93%)15106(Top 94%)15106(Top 268%)
24M24.00 mi1.00 mi26690+3215359+2215359+2225708(Top 91%)14660(Top 91%)14660(Top 260%)
40K24.85 mi0.85 mi26684+615348+1115348+1126024(Top 92%)14804(Top 92%)14804(Top 262%)
25.2M25.20 mi0.35 mi26667+1715339+915339+925485(Top 90%)14486(Top 90%)14486(Top 257%)
Finish26.22 mi1.02 mi26643+2415319+2015319+2025326(Top 89%)14452(Top 90%)14452(Top 256%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

26582

Males

15400

M18-39

15400

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26559

Males

15396

M18-39

15396

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

26582

Males

15400

M18-39

15400

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

26697

Males

15418

M18-39

15418

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

26491

Males

15309

M18-39

15309

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

27111

Males

15547

M18-39

15547

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

26740

Males

15318

M18-39

15318

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

26297

Males

15068

M18-39

15068

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25722

Males

14744

M18-39

14744

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26484

Males

15088

M18-39

15088

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26540

Males

15106

M18-39

15106

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25708

Males

14660

M18-39

14660

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26024

Males

14804

M18-39

14804

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25485

Males

14486

M18-39

14486

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25326

Males

14452

M18-39

14452

Passing Analysis

Category:
Athletes Passed
837
Passed By
859
Net Change
-22
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26621
5K → 10K196168+28#26621#26593
10K → 15K111123-12#26593#26605
15K → 20K99132-33#26605#26638
20K → Half2316+7#26638#26631
Half → 25K35173-138#26631#26769
25K → 30K9299-7#26769#26776
30K → 20M3927+12#26776#26764
20M → 21M5420+34#26764#26730
21M → 35K2328-5#26730#26735
35K → 23M4431+13#26735#26722
23M → 24M419+32#26722#26690
24M → 40K2620+6#26690#26684
40K → 25.2M181+17#26684#26667
25.2M → Finish3612+24#26667#26643
TOTALS837859-22
📊

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