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BOSTON MARATHON 2025

Dan Markow

Bib: 25983•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
25:20
Rank: #17771
Start → 5K
25:20 | 8:09/mi
10K· 6.21 mi
51:14
Rank: #18265 (-494)
5K → 10K
25:54 | 8:20/mi
15K· 9.32 mi
1:18:01
Rank: #18855 (-590)
10K → 15K
26:47 | 8:37/mi
20K· 12.43 mi
1:46:27
Rank: #19686 (-831)
15K → 20K
28:26 | 9:09/mi
Half· 13.11 mi
1:52:47
Rank: #19885 (-199)
20K → Half
6:20 | 9:17/mi
25K· 15.53 mi
2:19:43
Rank: #21522 (-1637)
Half → 25K
26:56 | 11:07/mi
30K· 18.64 mi
2:54:13
Rank: #22317 (-795)
25K → 30K
34:30 | 11:06/mi
20M
3:11:09
Rank: #22742 (-425)
30K → 20M
16:56 | 12:28/mi
21M
3:24:37
Rank: #22985 (-243)
20M → 21M
13:28 | 13:28/mi
35K· 21.75 mi
3:32:11
Rank: #22964 (+21)
21M → 35K
7:34 | 10:07/mi
23M
3:46:23
Rank: #23034 (-70)
35K → 23M
14:12 | 11:20/mi
24M
3:56:53
Rank: #23021 (+13)
23M → 24M
10:30 | 10:30/mi
40K· 24.85 mi
4:06:09
Rank: #22995 (+26)
24M → 40K
9:16 | 10:50/mi
25.2M
4:10:28
Rank: #23030 (-35)
40K → 25.2M
4:19 | 12:31/mi
Finish· 26.22 mi
4:21:42
Rank: #23131 (-101)
25.2M → Finish
11:14 | 11:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:47
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:28:55
Pace11:22 /mi
📊Positive Split: 32.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:2525:208:0925:20
8:09
-
10K
6.21 mi12:06:1951:148:1525:54
8:20
+0:11
15K
9.32 mi12:33:061:18:018:2226:47
8:37
+0:17
20K
12.43 mi13:01:321:46:278:3428:26
9:09
+0:32
Half
13.11 mi13:07:521:52:478:366:20
9:17
+0:08
25K
15.53 mi13:34:482:19:439:0026:56
11:07
+1:50
30K
18.64 mi14:09:182:54:139:2134:30
11:06
-0:01
20M
20.00 mi14:26:143:11:099:3316:56
12:28
+1:22
21M
21.00 mi14:39:423:24:379:4513:28
13:28
+1:00
35K
21.75 mi14:47:163:32:119:457:34
10:07
-3:21
23M
23.00 mi15:01:283:46:239:5114:12
11:20
+1:13
24M
24.00 mi15:11:583:56:539:5210:30
10:30
-0:50
40K
24.85 mi15:21:144:06:099:549:16
10:50
+0:20
25.2M
25.20 mi15:25:334:10:289:564:19
12:31
+1:41
Finish
26.22 mi15:36:474:21:429:5911:14
11:01
-1:30

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

8:09 /mi

Average Pace

9:59 /mi

Slowest Pace

13:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:47

43% of race

Time at Steady Pace

1:54:12

44% of race

Time at Slower Pace

34:43

13% of race

Average Pace: 9:59 /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 mi11:40:2525:208:0925:20
8:09
#17771
10K
6.21 mi12:06:1951:148:1525:54
8:20
#18265
15K
9.32 mi12:33:061:18:018:2226:47
8:37
#18855
20K
12.43 mi13:01:321:46:278:3428:26
9:09
#19686
Half
13.11 mi13:07:521:52:478:366:20
9:17
#19885
25K
15.53 mi13:34:482:19:439:0026:56
11:07
#21522
30K
18.64 mi14:09:182:54:139:2134:30
11:06
#22317
20M
20.00 mi14:26:143:11:099:3316:56
12:28
#22742
21M
21.00 mi14:39:423:24:379:4513:28
13:28
#22985
35K
21.75 mi14:47:163:32:119:457:34
10:07
#22964
23M
23.00 mi15:01:283:46:239:5114:12
11:20
#23034
24M
24.00 mi15:11:583:56:539:5210:30
10:30
#23021
40K
24.85 mi15:21:144:06:099:549:16
10:50
#22995
25.2M
25.20 mi15:25:334:10:289:564:19
12:31
#23030
Finish
26.22 mi15:36:474:21:429:5911:14
11:01
#23131
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17771115231152320038(Top 71%)12524(Top 78%)12524(Top 222%)
10K6.21 mi3.10 mi18265-49411728-20511728-20518789(Top 66%)11981(Top 74%)11981(Top 212%)
15K9.32 mi3.11 mi18855-59011975-24711975-24720038(Top 71%)12524(Top 78%)12524(Top 222%)
20K12.43 mi3.11 mi19686-83112336-36112336-36121680(Top 76%)13209(Top 82%)13209(Top 234%)
Half13.11 mi0.68 mi19885-19912423-8712423-8722887(Top 81%)13746(Top 85%)13746(Top 244%)
25K15.53 mi2.42 mi21522-163713127-70413127-70425360(Top 89%)14798(Top 92%)14798(Top 262%)
30K18.64 mi3.11 mi22317-79513453-32613453-32624191(Top 85%)14159(Top 88%)14159(Top 251%)
20M20.00 mi1.36 mi22742-42513612-15913612-15925862(Top 91%)14860(Top 92%)14860(Top 263%)
21M21.00 mi1.00 mi22985-24313705-9313705-9325632(Top 90%)14692(Top 91%)14692(Top 260%)
35K21.75 mi0.75 mi22964+2113683+2213683+2222212(Top 78%)13016(Top 81%)13016(Top 231%)
23M23.00 mi1.25 mi23034-7013694-1113694-1123968(Top 84%)13824(Top 86%)13824(Top 245%)
24M24.00 mi1.00 mi23021+1313659+3513659+3522815(Top 80%)13213(Top 82%)13213(Top 234%)
40K24.85 mi0.85 mi22995+2613629+3013629+3022759(Top 80%)13119(Top 81%)13119(Top 233%)
25.2M25.20 mi0.35 mi23030-3513643-1413643-1424206(Top 85%)13869(Top 86%)13869(Top 246%)
Finish26.22 mi1.02 mi23131-10113677-3413677-3425406(Top 89%)14482(Top 90%)14482(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20038

Males

12524

M18-39

12524

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18789

Males

11981

M18-39

11981

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20038

Males

12524

M18-39

12524

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21680

Males

13209

M18-39

13209

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

22887

Males

13746

M18-39

13746

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25360

Males

14798

M18-39

14798

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

24191

Males

14159

M18-39

14159

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

25862

Males

14860

M18-39

14860

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

25632

Males

14692

M18-39

14692

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

22212

Males

13016

M18-39

13016

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

23968

Males

13824

M18-39

13824

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

22815

Males

13213

M18-39

13213

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22759

Males

13119

M18-39

13119

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24206

Males

13869

M18-39

13869

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

25406

Males

14482

M18-39

14482

Passing Analysis

Category:
Athletes Passed
560
Passed By
5920
Net Change
-5360
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17771
5K → 10K120614-494#17771#18265
10K → 15K53643-590#18265#18855
15K → 20K48879-831#18855#19686
20K → Half3202-199#19686#19885
Half → 25K91646-1637#19885#21522
25K → 30K44839-795#21522#22317
30K → 20M23448-425#22317#22742
20M → 21M19262-243#22742#22985
21M → 35K4928+21#22985#22964
35K → 23M47117-70#22964#23034
23M → 24M6451+13#23034#23021
24M → 40K6034+26#23021#22995
40K → 25.2M641-35#22995#23030
25.2M → Finish15116-101#23030#23131
TOTALS5605920-5360
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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