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BOSTON MARATHON 2025

John Blake

Bib: 28311•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 (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:36
Rank: #20245
Start → 5K
26:36 | 8:34/mi
10K· 6.21 mi
52:29
Rank: #19511 (+734)
5K → 10K
25:53 | 8:20/mi
15K· 9.32 mi
1:16:57
Rank: #18134 (+1377)
10K → 15K
24:28 | 7:53/mi
20K· 12.43 mi
1:42:27
Rank: #17637 (+497)
15K → 20K
25:30 | 8:12/mi
Half· 13.11 mi
1:47:59
Rank: #17585 (+52)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:08:29
Rank: #17419 (+166)
Half → 25K
20:30 | 8:27/mi
30K· 18.64 mi
2:37:47
Rank: #17874 (-455)
25K → 30K
29:18 | 9:26/mi
20M
2:52:00
Rank: #18429 (-555)
30K → 20M
14:13 | 10:28/mi
21M
3:02:57
Rank: #18682 (-253)
20M → 21M
10:57 | 10:57/mi
35K· 21.75 mi
3:10:34
Rank: #18889 (-207)
21M → 35K
7:37 | 10:11/mi
23M
3:22:54
Rank: #18993 (-104)
35K → 23M
12:20 | 9:51/mi
24M
3:32:38
Rank: #19086 (-93)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
3:41:13
Rank: #19161 (-75)
24M → 40K
8:35 | 10:02/mi
25.2M
3:45:22
Rank: #19248 (-87)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
3:55:05
Rank: #19351 (-103)
25.2M → Finish
9:43 | 9:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:59
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time2:07:06
Pace9:42 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1026:368:3426:36
8:34
-
10K
6.21 mi12:19:0352:298:2725:53
8:20
-0:14
15K
9.32 mi12:43:311:16:578:1524:28
7:53
-0:27
20K
12.43 mi13:09:011:42:278:1525:30
8:12
+0:19
Half
13.11 mi13:14:331:47:598:145:32
8:07
-0:05
25K
15.53 mi13:35:032:08:298:1620:30
8:27
+0:20
30K
18.64 mi14:04:212:37:478:2829:18
9:26
+0:59
20M
20.00 mi14:18:342:52:008:3614:13
10:28
+1:02
21M
21.00 mi14:29:313:02:578:4310:57
10:57
+0:29
35K
21.75 mi14:37:083:10:348:467:37
10:11
-0:46
23M
23.00 mi14:49:283:22:548:4912:20
9:51
-0:20
24M
24.00 mi14:59:123:32:388:529:44
9:44
-0:07
40K
24.85 mi15:07:473:41:138:548:35
10:02
+0:18
25.2M
25.20 mi15:11:563:45:228:574:09
12:02
+2:00
Finish
26.22 mi15:21:393:55:058:589:43
9:32
-2:30

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

7:53 /mi

Average Pace

8:58 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:29

55% of race

Time at Steady Pace

1:09:40

30% of race

Time at Slower Pace

36:56

16% of race

Average Pace: 8:58 /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 mi11:53:1026:368:3426:36
8:34
#20245
10K
6.21 mi12:19:0352:298:2725:53
8:20
#19511
15K
9.32 mi12:43:311:16:578:1524:28
7:53
#18134
20K
12.43 mi13:09:011:42:278:1525:30
8:12
#17637
Half
13.11 mi13:14:331:47:598:145:32
8:07
#17585
25K
15.53 mi13:35:032:08:298:1620:30
8:27
#17419
30K
18.64 mi14:04:212:37:478:2829:18
9:26
#17874
20M
20.00 mi14:18:342:52:008:3614:13
10:28
#18429
21M
21.00 mi14:29:313:02:578:4310:57
10:57
#18682
35K
21.75 mi14:37:083:10:348:467:37
10:11
#18889
23M
23.00 mi14:49:283:22:548:4912:20
9:51
#18993
24M
24.00 mi14:59:123:32:388:529:44
9:44
#19086
40K
24.85 mi15:07:473:41:138:548:35
10:02
#19161
25.2M
25.20 mi15:11:563:45:228:574:09
12:02
#19248
Finish
26.22 mi15:21:393:55:058:589:43
9:32
#19351
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi20245125421254215037(Top 53%)10398(Top 65%)10398(Top 463%)
10K6.21 mi3.10 mi19511+73412267+27512267+27518750(Top 66%)11962(Top 74%)11962(Top 532%)
15K9.32 mi3.11 mi18134+137711672+59511672+59515037(Top 53%)10398(Top 65%)10398(Top 463%)
20K12.43 mi3.11 mi17637+49711468+20411468+20416346(Top 58%)10894(Top 68%)10894(Top 485%)
Half13.11 mi0.68 mi17585+5211451+1711451+1716668(Top 59%)11063(Top 69%)11063(Top 492%)
25K15.53 mi2.42 mi17419+16611358+9311358+9316910(Top 60%)11065(Top 69%)11065(Top 492%)
30K18.64 mi3.11 mi17874-45511491-13311491-13319658(Top 69%)12130(Top 75%)12130(Top 540%)
20M20.00 mi1.36 mi18429-55511721-23011721-23022299(Top 79%)13181(Top 82%)13181(Top 587%)
21M21.00 mi1.00 mi18682-25311804-8311804-8321239(Top 75%)12604(Top 78%)12604(Top 561%)
35K21.75 mi0.75 mi18889-20711872-6811872-6822358(Top 79%)13080(Top 81%)13080(Top 582%)
23M23.00 mi1.25 mi18993-10411896-2411896-2419953(Top 70%)11879(Top 74%)11879(Top 529%)
24M24.00 mi1.00 mi19086-9311918-2211918-2220487(Top 72%)12089(Top 75%)12089(Top 538%)
40K24.85 mi0.85 mi19161-7511926-811926-820556(Top 72%)12067(Top 75%)12067(Top 537%)
25.2M25.20 mi0.35 mi19248-8711946-2011946-2023269(Top 82%)13403(Top 83%)13403(Top 596%)
Finish26.22 mi1.02 mi19351-10311968-2211968-2221280(Top 75%)12421(Top 77%)12421(Top 553%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

15037

Males

10398

M40-44

10398

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18750

Males

11962

M40-44

11962

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

15037

Males

10398

M40-44

10398

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

16346

Males

10894

M40-44

10894

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16668

Males

11063

M40-44

11063

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16910

Males

11065

M40-44

11065

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19658

Males

12130

M40-44

12130

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22299

Males

13181

M40-44

13181

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

21239

Males

12604

M40-44

12604

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

22358

Males

13080

M40-44

13080

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19953

Males

11879

M40-44

11879

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20487

Males

12089

M40-44

12089

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20556

Males

12067

M40-44

12067

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23269

Males

13403

M40-44

13403

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21280

Males

12421

M40-44

12421

Passing Analysis

Category:
Athletes Passed
3398
Passed By
2504
Net Change
+894
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20245
5K → 10K79662+734#20245#19511
10K → 15K13792+1377#19511#18134
15K → 20K51316+497#18134#17637
20K → Half7119+52#17637#17585
Half → 25K24579+166#17585#17419
25K → 30K106561-455#17419#17874
30K → 20M27582-555#17874#18429
20M → 21M44297-253#18429#18682
21M → 35K21228-207#18682#18889
35K → 23M66170-104#18889#18993
23M → 24M38131-93#18993#19086
24M → 40K46121-75#19086#19161
40K → 25.2M15102-87#19161#19248
25.2M → Finish31134-103#19248#19351
TOTALS33982504+894
📊

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