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BOSTON MARATHON 2025

Justin O'Leary

Bib: 32284•M

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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
31:50
Rank: #26182
Start → 5K
31:50 | 10:15/mi
10K· 6.21 mi
1:05:00
Rank: #26423 (-241)
5K → 10K
33:10 | 10:41/mi
15K· 9.32 mi
1:38:28
Rank: #26391 (+32)
10K → 15K
33:28 | 10:46/mi
20K· 12.43 mi
2:12:39
Rank: #26283 (+108)
15K → 20K
34:11 | 11:00/mi
Half· 13.11 mi
2:19:55
Rank: #26273 (+10)
20K → Half
7:16 | 10:39/mi
25K· 15.53 mi
2:46:34
Rank: #26076 (+197)
Half → 25K
26:39 | 10:59/mi
30K· 18.64 mi
3:23:26
Rank: #25930 (+146)
25K → 30K
36:52 | 11:52/mi
20M
3:39:23
Rank: #25855 (+75)
30K → 20M
15:57 | 11:44/mi
21M
3:52:17
Rank: #25824 (+31)
20M → 21M
12:54 | 12:54/mi
35K· 21.75 mi
4:00:34
Rank: #25786 (+38)
21M → 35K
8:17 | 11:04/mi
23M
4:14:53
Rank: #25725 (+61)
35K → 23M
14:19 | 11:26/mi
24M
4:26:03
Rank: #25676 (+49)
23M → 24M
11:10 | 11:10/mi
40K· 24.85 mi
4:36:02
Rank: #25642 (+34)
24M → 40K
9:59 | 11:41/mi
25.2M
4:40:25
Rank: #25634 (+8)
40K → 25.2M
4:23 | 12:43/mi
Finish· 26.22 mi
4:50:35
Rank: #25557 (+77)
25.2M → Finish
10:10 | 9:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:55
Pace10:40 /mi
2nd Half
Distance13.11 mi
Time2:30:40
Pace11:30 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1831:5010:1531:50
10:15
-
10K
6.21 mi12:29:281:05:0010:2833:10
10:41
+0:26
15K
9.32 mi13:02:561:38:2810:3433:28
10:46
+0:05
20K
12.43 mi13:37:072:12:3910:4034:11
11:00
+0:14
Half
13.11 mi13:44:232:19:5510:407:16
10:39
-0:21
25K
15.53 mi14:11:022:46:3410:4326:39
10:59
+0:20
30K
18.64 mi14:47:543:23:2610:5536:52
11:52
+0:53
20M
20.00 mi15:03:513:39:2310:5815:57
11:44
-0:08
21M
21.00 mi15:16:453:52:1711:0412:54
12:54
+1:10
35K
21.75 mi15:25:024:00:3411:048:17
11:04
-1:50
23M
23.00 mi15:39:214:14:5311:0514:19
11:26
+0:22
24M
24.00 mi15:50:314:26:0311:0511:10
11:10
-0:16
40K
24.85 mi16:00:304:36:0211:069:59
11:41
+0:31
25.2M
25.20 mi16:04:534:40:2511:084:23
12:43
+1:02
Finish
26.22 mi16:15:034:50:3511:0510:10
9:59
-2:44

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

9:59 /mi

Average Pace

11:05 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:16

17% of race

Time at Steady Pace

2:41:14

55% of race

Time at Slower Pace

1:20:05

28% of race

Average Pace: 11:05 /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 mi11:56:1831:5010:1531:50
10:15
#26182
10K
6.21 mi12:29:281:05:0010:2833:10
10:41
#26423
15K
9.32 mi13:02:561:38:2810:3433:28
10:46
#26391
20K
12.43 mi13:37:072:12:3910:4034:11
11:00
#26283
Half
13.11 mi13:44:232:19:5510:407:16
10:39
#26273
25K
15.53 mi14:11:022:46:3410:4326:39
10:59
#26076
30K
18.64 mi14:47:543:23:2610:5536:52
11:52
#25930
20M
20.00 mi15:03:513:39:2310:5815:57
11:44
#25855
21M
21.00 mi15:16:453:52:1711:0412:54
12:54
#25824
35K
21.75 mi15:25:024:00:3411:048:17
11:04
#25786
23M
23.00 mi15:39:214:14:5311:0514:19
11:26
#25725
24M
24.00 mi15:50:314:26:0311:0511:10
11:10
#25676
40K
24.85 mi16:00:304:36:0211:069:59
11:41
#25642
25.2M
25.20 mi16:04:534:40:2511:084:23
12:43
#25634
Finish
26.22 mi16:15:034:50:3511:0510:10
9:59
#25557
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi26182152551525526361(Top 93%)15313(Top 95%)15313(Top 681%)
10K6.21 mi3.10 mi26423-24115346-9115346-9126557(Top 93%)15394(Top 96%)15394(Top 685%)
15K9.32 mi3.11 mi26391+3215328+1815328+1826361(Top 93%)15313(Top 95%)15313(Top 681%)
20K12.43 mi3.11 mi26283+10815280+4815280+4826000(Top 92%)15122(Top 94%)15122(Top 673%)
Half13.11 mi0.68 mi26273+1015276+415276+426020(Top 92%)15113(Top 94%)15113(Top 673%)
25K15.53 mi2.42 mi26076+19715174+10215174+10225200(Top 89%)14729(Top 91%)14729(Top 655%)
30K18.64 mi3.11 mi25930+14615075+9915075+9925405(Top 89%)14721(Top 91%)14721(Top 655%)
20M20.00 mi1.36 mi25855+7515032+4315032+4324900(Top 88%)14419(Top 90%)14419(Top 642%)
21M21.00 mi1.00 mi25824+3114998+3414998+3424932(Top 88%)14333(Top 89%)14333(Top 638%)
35K21.75 mi0.75 mi25786+3814978+2014978+2024366(Top 86%)14052(Top 87%)14052(Top 625%)
23M23.00 mi1.25 mi25725+6114932+4614932+4624138(Top 85%)13910(Top 86%)13910(Top 619%)
24M24.00 mi1.00 mi25676+4914897+3514897+3524327(Top 86%)13985(Top 87%)13985(Top 622%)
40K24.85 mi0.85 mi25642+3414873+2414873+2424441(Top 86%)13991(Top 87%)13991(Top 623%)
25.2M25.20 mi0.35 mi25634+814862+1114862+1124588(Top 87%)14063(Top 87%)14063(Top 626%)
Finish26.22 mi1.02 mi25557+7714819+4314819+4322863(Top 80%)13211(Top 82%)13211(Top 588%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

26361

Males

15313

M40-44

15313

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26557

Males

15394

M40-44

15394

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

26361

Males

15313

M40-44

15313

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

26000

Males

15122

M40-44

15122

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

26020

Males

15113

M40-44

15113

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25200

Males

14729

M40-44

14729

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

25405

Males

14721

M40-44

14721

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

24900

Males

14419

M40-44

14419

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

24932

Males

14333

M40-44

14333

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24366

Males

14052

M40-44

14052

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

24138

Males

13910

M40-44

13910

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24327

Males

13985

M40-44

13985

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24441

Males

13991

M40-44

13991

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24588

Males

14063

M40-44

14063

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

22863

Males

13211

M40-44

13211

Passing Analysis

Category:
Athletes Passed
1296
Passed By
671
Net Change
+625
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26182
5K → 10K89330-241#26182#26423
10K → 15K137105+32#26423#26391
15K → 20K17870+108#26391#26283
20K → Half2313+10#26283#26273
Half → 25K2069+197#26273#26076
25K → 30K18943+146#26076#25930
30K → 20M9015+75#25930#25855
20M → 21M6332+31#25855#25824
21M → 35K457+38#25824#25786
35K → 23M7514+61#25786#25725
23M → 24M556+49#25725#25676
24M → 40K4612+34#25676#25642
40K → 25.2M2012+8#25642#25634
25.2M → Finish803+77#25634#25557
TOTALS1296671+625
📊

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