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BOSTON MARATHON 2025

Steve Dozois

Bib: 13851•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
7:33/mi
23:26
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
46:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:10:50
↑ 67↓ 78
20K· 12.43 mi
8:04/mi
1:35:54
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:41:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:03:03
↑ 66↓ 880.2%
30K· 18.64 mi
10:32/mi
2:35:46
↑ 181↓ 1480.2%
20M
11:37/mi
2:51:33
↑ 64↓ 500.2%
21M
13:19/mi
3:04:52
↑ 106↓ 241.6%
35K· 21.75 mi
12:51/mi
3:14:29
↑ 17↓ 861.7%
23M
12:07/mi
3:29:39
↑ 23↓ 630.6%
24M
12:11/mi
3:41:50
↓ 821.3%
40K· 24.85 mi
13:26/mi
3:53:19
↓ 200.3%
25.2M
13:41/mi
3:58:02
↑ 13↓ 160.2%
Finish· 26.22 mi
10:39/mi
4:08:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:33
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time2:27:20
Pace11:14 /mi
📊Positive Split: 45.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1323:267:3323:26
7:33
-
10K
6.21 mi11:15:3946:527:3323:26
7:33
0:00
15K
9.32 mi11:39:371:10:507:3623:58
7:43
+0:10
20K
12.43 mi12:04:411:35:547:4325:04
8:04
+0:21
Half
13.11 mi12:10:201:41:337:455:39
8:17
+0:13
25K
15.53 mi12:31:502:03:037:5521:30
8:52
+0:35
30K
18.64 mi13:04:332:35:468:2132:43
10:32
+1:40
20M
20.00 mi13:20:202:51:338:3515:47
11:37
+1:05
21M
21.00 mi13:33:393:04:528:4813:19
13:19
+1:42
35K
21.75 mi13:43:163:14:298:579:37
12:51
-0:28
23M
23.00 mi13:58:263:29:399:0715:10
12:07
-0:44
24M
24.00 mi14:10:373:41:509:1512:11
12:11
+0:04
40K
24.85 mi14:22:063:53:199:2311:29
13:26
+1:15
25.2M
25.20 mi14:26:493:58:029:274:43
13:41
+0:15
Finish
26.22 mi14:37:404:08:539:3010:51
10:39
-3:02

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

7:33 /mi

Average Pace

9:30 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:03

49% of race

Time at Steady Pace

59:21

24% of race

Time at Slower Pace

1:06:29

27% of race

Average Pace: 9:30 /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 mi10:52:1323:267:3323:26
7:33
#12620
10K
6.21 mi11:15:3946:527:3323:26
7:33
#12504
15K
9.32 mi11:39:371:10:507:3623:58
7:43
#12861
20K
12.43 mi12:04:411:35:547:4325:04
8:04
#13515
Half
13.11 mi12:10:201:41:337:455:39
8:17
#13758
25K
15.53 mi12:31:502:03:037:5521:30
8:52
#14915
30K
18.64 mi13:04:332:35:468:2132:43
10:32
#17172
20M
20.00 mi13:20:202:51:338:3515:47
11:37
#18284
21M
21.00 mi13:33:393:04:528:4813:19
13:19
#19197
35K
21.75 mi13:43:163:14:298:579:37
12:51
#19840
23M
23.00 mi13:58:263:29:399:0715:10
12:07
#20447
24M
24.00 mi14:10:373:41:509:1512:11
12:11
#20911
40K
24.85 mi14:22:063:53:199:2311:29
13:26
#21331
25.2M
25.20 mi14:26:493:58:029:274:43
13:41
#21444
Finish
26.22 mi14:37:404:08:539:3010:51
10:39
#21601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi126209470947013637(Top 48%)9795(Top 61%)9795(Top 491%)
10K6.21 mi3.10 mi12504+1169398+729398+7212490(Top 44%)9375(Top 58%)9375(Top 470%)
15K9.32 mi3.11 mi12861-3579522-1249522-12413637(Top 48%)9795(Top 61%)9795(Top 491%)
20K12.43 mi3.11 mi13515-6549740-2189740-21815405(Top 54%)10504(Top 65%)10504(Top 526%)
Half13.11 mi0.68 mi13758-2439833-939833-9317819(Top 63%)11564(Top 72%)11564(Top 579%)
25K15.53 mi2.42 mi14915-115710296-46310296-46319273(Top 68%)12093(Top 75%)12093(Top 606%)
30K18.64 mi3.11 mi17172-225711206-91011206-91022996(Top 81%)13616(Top 85%)13616(Top 682%)
20M20.00 mi1.36 mi18284-111211658-45211658-45224732(Top 87%)14337(Top 89%)14337(Top 718%)
21M21.00 mi1.00 mi19197-91312033-37512033-37525457(Top 90%)14602(Top 91%)14602(Top 732%)
35K21.75 mi0.75 mi19840-64312290-25712290-25726831(Top 94%)15253(Top 95%)15253(Top 764%)
23M23.00 mi1.25 mi20447-60712534-24412534-24425280(Top 89%)14466(Top 90%)14466(Top 725%)
24M24.00 mi1.00 mi20911-46412723-18912723-18925887(Top 91%)14739(Top 92%)14739(Top 738%)
40K24.85 mi0.85 mi21331-42012896-17312896-17326705(Top 94%)15133(Top 94%)15133(Top 758%)
25.2M25.20 mi0.35 mi21444-11312938-4212938-4225890(Top 91%)14689(Top 91%)14689(Top 736%)
Finish26.22 mi1.02 mi21601-15712988-5012988-5024605(Top 87%)14082(Top 87%)14082(Top 706%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13637

Males

9795

M50-54

9795

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12490

Males

9375

M50-54

9375

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13637

Males

9795

M50-54

9795

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15405

Males

10504

M50-54

10504

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17819

Males

11564

M50-54

11564

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19273

Males

12093

M50-54

12093

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

22996

Males

13616

M50-54

13616

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24732

Males

14337

M50-54

14337

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

25457

Males

14602

M50-54

14602

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

26831

Males

15253

M50-54

15253

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

25280

Males

14466

M50-54

14466

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25887

Males

14739

M50-54

14739

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26705

Males

15133

M50-54

15133

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25890

Males

14689

M50-54

14689

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24605

Males

14082

M50-54

14082

Passing Analysis

Category:
Athletes Passed
619
Passed By
9600
Net Change
-8981
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12620
5K → 10K345229+116#12620#12504
10K → 15K90447-357#12504#12861
15K → 20K68722-654#12861#13515
20K → Half0243-243#13515#13758
Half → 25K331190-1157#13758#14915
25K → 30K112268-2257#14915#17172
30K → 20M151127-1112#17172#18284
20M → 21M10923-913#18284#19197
21M → 35K3646-643#19197#19840
35K → 23M14621-607#19840#20447
23M → 24M4468-464#20447#20911
24M → 40K3423-420#20911#21331
40K → 25.2M5118-113#21331#21444
25.2M → Finish18175-157#21444#21601
TOTALS6199600-8981
📊

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