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BOSTON MARATHON 2025

John Marsinelli

Bib: 28127•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
28:26
Rank: #23042
Start → 5K
28:26 | 9:09/mi
10K· 6.21 mi
56:10
Rank: #22576 (+466)
5K → 10K
27:44 | 8:56/mi
15K· 9.32 mi
1:24:54
Rank: #22737 (-161)
10K → 15K
28:44 | 9:15/mi
20K· 12.43 mi
1:57:01
Rank: #23518 (-781)
15K → 20K
32:07 | 10:20/mi
Half· 13.11 mi
2:03:37
Rank: #23554 (-36)
20K → Half
6:36 | 9:40/mi
25K· 15.53 mi
2:28:36
Rank: #23599 (-45)
Half → 25K
24:59 | 10:18/mi
30K· 18.64 mi
3:06:48
Rank: #24274 (-675)
25K → 30K
38:12 | 12:18/mi
20M
3:25:22
Rank: #24621 (-347)
30K → 20M
18:34 | 13:40/mi
21M
3:41:36
Rank: #24972 (-351)
20M → 21M
16:14 | 16:14/mi
35K· 21.75 mi
3:51:37
Rank: #25097 (-125)
21M → 35K
10:01 | 13:23/mi
23M
4:09:04
Rank: #25277 (-180)
35K → 23M
17:27 | 13:56/mi
24M
4:21:32
Rank: #25318 (-41)
23M → 24M
12:28 | 12:28/mi
40K· 24.85 mi
4:31:41
Rank: #25308 (+10)
24M → 40K
10:09 | 11:52/mi
25.2M
4:36:00
Rank: #25295 (+13)
40K → 25.2M
4:19 | 12:31/mi
Finish· 26.22 mi
4:47:23
Rank: #25321 (-26)
25.2M → Finish
11:23 | 11:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:37
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:43:46
Pace12:30 /mi
📊Positive Split: 32.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2728:269:0928:26
9:09
-
10K
6.21 mi12:15:1156:109:0227:44
8:56
-0:13
15K
9.32 mi12:43:551:24:549:0728:44
9:15
+0:19
20K
12.43 mi13:16:021:57:019:2532:07
10:20
+1:05
Half
13.11 mi13:22:382:03:379:266:36
9:40
-0:40
25K
15.53 mi13:47:372:28:369:3424:59
10:18
+0:38
30K
18.64 mi14:25:493:06:4810:0138:12
12:18
+2:00
20M
20.00 mi14:44:233:25:2210:1618:34
13:40
+1:22
21M
21.00 mi15:00:373:41:3610:3316:14
16:14
+2:34
35K
21.75 mi15:10:383:51:3710:3910:01
13:23
-2:51
23M
23.00 mi15:28:054:09:0410:5017:27
13:56
+0:33
24M
24.00 mi15:40:334:21:3210:5412:28
12:28
-1:28
40K
24.85 mi15:50:424:31:4110:5610:09
11:52
-0:36
25.2M
25.20 mi15:55:014:36:0010:574:19
12:31
+0:39
Finish
26.22 mi16:06:244:47:2310:5811:23
11:10
-1:21

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

8:56 /mi

Average Pace

10:58 /mi

Slowest Pace

16:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:36

52% of race

Time at Steady Pace

1:16:31

27% of race

Time at Slower Pace

1:02:16

22% of race

Average Pace: 10:58 /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 mi11:47:2728:269:0928:26
9:09
#23042
10K
6.21 mi12:15:1156:109:0227:44
8:56
#22576
15K
9.32 mi12:43:551:24:549:0728:44
9:15
#22737
20K
12.43 mi13:16:021:57:019:2532:07
10:20
#23518
Half
13.11 mi13:22:382:03:379:266:36
9:40
#23554
25K
15.53 mi13:47:372:28:369:3424:59
10:18
#23599
30K
18.64 mi14:25:493:06:4810:0138:12
12:18
#24274
20M
20.00 mi14:44:233:25:2210:1618:34
13:40
#24621
21M
21.00 mi15:00:373:41:3610:3316:14
16:14
#24972
35K
21.75 mi15:10:383:51:3710:3910:01
13:23
#25097
23M
23.00 mi15:28:054:09:0410:5017:27
13:56
#25277
24M
24.00 mi15:40:334:21:3210:5412:28
12:28
#25318
40K
24.85 mi15:50:424:31:4110:5610:09
11:52
#25308
25.2M
25.20 mi15:55:014:36:0010:574:19
12:31
#25295
Finish
26.22 mi16:06:244:47:2310:5811:23
11:10
#25321
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23042137881378823037(Top 81%)13863(Top 86%)13863(Top 246%)
10K6.21 mi3.10 mi22576+46613589+19913589+19922069(Top 78%)13377(Top 83%)13377(Top 237%)
15K9.32 mi3.11 mi22737-16113700-11113700-11123037(Top 81%)13863(Top 86%)13863(Top 246%)
20K12.43 mi3.11 mi23518-78114043-34314043-34324898(Top 88%)14631(Top 91%)14631(Top 259%)
Half13.11 mi0.68 mi23554-3614057-1414057-1424034(Top 85%)14255(Top 89%)14255(Top 253%)
25K15.53 mi2.42 mi23599-4514059-214059-223968(Top 84%)14186(Top 88%)14186(Top 251%)
30K18.64 mi3.11 mi24274-67514332-27314332-27325932(Top 91%)14960(Top 93%)14960(Top 265%)
20M20.00 mi1.36 mi24621-34714479-14714479-14727041(Top 95%)15390(Top 96%)15390(Top 273%)
21M21.00 mi1.00 mi24972-35114616-13714616-13727912(Top 98%)15828(Top 98%)15828(Top 281%)
35K21.75 mi0.75 mi25097-12514660-4414660-4427286(Top 96%)15482(Top 96%)15482(Top 274%)
23M23.00 mi1.25 mi25277-18014733-7314733-7327265(Top 96%)15460(Top 96%)15460(Top 274%)
24M24.00 mi1.00 mi25318-4114741-814741-826275(Top 93%)14952(Top 93%)14952(Top 265%)
40K24.85 mi0.85 mi25308+1014728+1314728+1324717(Top 87%)14121(Top 88%)14121(Top 250%)
25.2M25.20 mi0.35 mi25295+1314719+914719+924233(Top 85%)13896(Top 86%)13896(Top 246%)
Finish26.22 mi1.02 mi25321-2614723-414723-425662(Top 90%)14608(Top 91%)14608(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

23037

Males

13863

M18-39

13863

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

22069

Males

13377

M18-39

13377

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

23037

Males

13863

M18-39

13863

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

24898

Males

14631

M18-39

14631

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24034

Males

14255

M18-39

14255

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23968

Males

14186

M18-39

14186

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

25932

Males

14960

M18-39

14960

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

27041

Males

15390

M18-39

15390

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

27912

Males

15828

M18-39

15828

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

27286

Males

15482

M18-39

15482

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

27265

Males

15460

M18-39

15460

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

26275

Males

14952

M18-39

14952

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24717

Males

14121

M18-39

14121

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24233

Males

13896

M18-39

13896

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25662

Males

14608

M18-39

14608

Passing Analysis

Category:
Athletes Passed
973
Passed By
3252
Net Change
-2279
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23042
5K → 10K53468+466#23042#22576
10K → 15K128289-161#22576#22737
15K → 20K33814-781#22737#23518
20K → Half1450-36#23518#23554
Half → 25K112157-45#23554#23599
25K → 30K23698-675#23599#24274
30K → 20M11358-347#24274#24621
20M → 21M6357-351#24621#24972
21M → 35K6131-125#24972#25097
35K → 23M7187-180#25097#25277
23M → 24M2970-41#25277#25318
24M → 40K2919+10#25318#25308
40K → 25.2M207+13#25308#25295
25.2M → Finish2147-26#25295#25321
TOTALS9733252-2279
📊

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