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BOSTON MARATHON 2025

Brendan O'Leary

Bib: 29144•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

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
9:01/mi
28:01
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
54:55
↑ 79↓ 1380.4%
15K· 9.32 mi
8:43/mi
1:22:01
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:50:22
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:56:20
↑ 19↓ 370.5%
25K· 15.53 mi
9:05/mi
2:18:22
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:49:17
↑ 181↓ 1480.2%
20M
11:21/mi
3:04:42
↑ 64↓ 500.2%
21M
14:27/mi
3:19:09
↑ 106↓ 241.6%
35K· 21.75 mi
19:46/mi
3:33:56
↑ 17↓ 861.7%
23M
10:24/mi
3:46:57
↑ 23↓ 630.6%
24M
10:53/mi
3:57:50
↓ 821.3%
40K· 24.85 mi
11:17/mi
4:07:29
↓ 200.3%
25.2M
10:41/mi
4:11:10
↑ 13↓ 160.2%
Finish· 26.22 mi
9:37/mi
4:20:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:20
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:24:38
Pace11:02 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:5428:019:0128:01
9:01
-
10K
6.21 mi12:13:4854:558:5026:54
8:39
-0:22
15K
9.32 mi12:40:541:22:018:4827:06
8:43
+0:04
20K
12.43 mi13:09:151:50:228:5328:21
9:07
+0:24
Half
13.11 mi13:15:131:56:208:525:58
8:45
-0:22
25K
15.53 mi13:37:152:18:228:5422:02
9:05
+0:20
30K
18.64 mi14:08:102:49:179:0530:55
9:57
+0:52
20M
20.00 mi14:23:353:04:429:1415:25
11:21
+1:24
21M
21.00 mi14:38:023:19:099:2914:27
14:27
+3:06
35K
21.75 mi14:52:493:33:569:5014:47
19:46
+5:19
23M
23.00 mi15:05:503:46:579:5213:01
10:24
-9:22
24M
24.00 mi15:16:433:57:509:5510:53
10:53
+0:29
40K
24.85 mi15:26:224:07:299:579:39
11:17
+0:24
25.2M
25.20 mi15:30:034:11:109:583:41
10:41
-0:36
Finish
26.22 mi15:39:514:20:589:589:48
9:37
-1:04

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

8:39 /mi

Average Pace

9:58 /mi

Slowest Pace

19:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:51:44

89% of race

Time at Slower Pace

29:14

11% of race

Average Pace: 9:57 /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 mi11:46:5428:019:0128:01
9:01
#22481
10K
6.21 mi12:13:4854:558:5026:54
8:39
#21649
15K
9.32 mi12:40:541:22:018:4827:06
8:43
#21261
20K
12.43 mi13:09:151:50:228:5328:21
9:07
#21334
Half
13.11 mi13:15:131:56:208:525:58
8:45
#21294
25K
15.53 mi13:37:152:18:228:5422:02
9:05
#21142
30K
18.64 mi14:08:102:49:179:0530:55
9:57
#21250
20M
20.00 mi14:23:353:04:429:1415:25
11:21
#21612
21M
21.00 mi14:38:023:19:099:2914:27
14:27
#22185
35K
21.75 mi14:52:493:33:569:5014:47
19:46
#23179
23M
23.00 mi15:05:503:46:579:5213:01
10:24
#23103
24M
24.00 mi15:16:433:57:509:5510:53
10:53
#23124
40K
24.85 mi15:26:224:07:299:579:39
11:17
#23142
25.2M
25.20 mi15:30:034:11:109:583:41
10:41
#23103
Finish
26.22 mi15:39:514:20:589:589:48
9:37
#23058
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi22481135261352620606(Top 73%)12776(Top 79%)12776(Top 569%)
10K6.21 mi3.10 mi21649+83213175+35113175+35120650(Top 73%)12765(Top 79%)12765(Top 568%)
15K9.32 mi3.11 mi21261+38813022+15313022+15320606(Top 73%)12776(Top 79%)12776(Top 569%)
20K12.43 mi3.11 mi21334-7313058-3613058-3621567(Top 76%)13163(Top 82%)13163(Top 586%)
Half13.11 mi0.68 mi21294+4013040+1813040+1820625(Top 73%)12751(Top 79%)12751(Top 567%)
25K15.53 mi2.42 mi21142+15212965+7512965+7520301(Top 71%)12550(Top 78%)12550(Top 559%)
30K18.64 mi3.11 mi21250-10812975-1012975-1021460(Top 76%)12922(Top 80%)12922(Top 575%)
20M20.00 mi1.36 mi21612-36213128-15313128-15324262(Top 85%)14106(Top 88%)14106(Top 628%)
21M21.00 mi1.00 mi22185-57313357-22913357-22926665(Top 94%)15193(Top 94%)15193(Top 676%)
35K21.75 mi0.75 mi23179-99413791-43413791-43428379(Top 100%)16089(Top 100%)16089(Top 716%)
23M23.00 mi1.25 mi23103+7613722+6913722+6921719(Top 76%)12740(Top 79%)12740(Top 567%)
24M24.00 mi1.00 mi23124-2113704+1813704+1823732(Top 84%)13679(Top 85%)13679(Top 609%)
40K24.85 mi0.85 mi23142-1813700+413700+423731(Top 84%)13625(Top 85%)13625(Top 606%)
25.2M25.20 mi0.35 mi23103+3913676+2413676+2419647(Top 69%)11630(Top 72%)11630(Top 518%)
Finish26.22 mi1.02 mi23058+4513646+3013646+3021606(Top 76%)12590(Top 78%)12590(Top 560%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20606

Males

12776

M40-44

12776

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20650

Males

12765

M40-44

12765

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20606

Males

12776

M40-44

12776

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21567

Males

13163

M40-44

13163

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20625

Males

12751

M40-44

12751

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20301

Males

12550

M40-44

12550

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21460

Males

12922

M40-44

12922

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

24262

Males

14106

M40-44

14106

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

26665

Males

15193

M40-44

15193

21M→35K

21.0 - 21.8 mi

Top 100%
×7story building
+17ft-86ft

Overall

28379

Males

16089

M40-44

16089

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21719

Males

12740

M40-44

12740

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

23732

Males

13679

M40-44

13679

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23731

Males

13625

M40-44

13625

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19647

Males

11630

M40-44

11630

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21606

Males

12590

M40-44

12590

Passing Analysis

Category:
Athletes Passed
2298
Passed By
2875
Net Change
-577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22481
5K → 10K87341+832#22481#21649
10K → 15K45466+388#21649#21261
15K → 20K173246-73#21261#21334
20K → Half5818+40#21334#21294
Half → 25K22472+152#21294#21142
25K → 30K175283-108#21142#21250
30K → 20M24386-362#21250#21612
20M → 21M15588-573#21612#22185
21M → 35K2996-994#22185#23179
35K → 23M10933+76#23179#23103
23M → 24M4869-21#23103#23124
24M → 40K4563-18#23124#23142
40K → 25.2M390+39#23142#23103
25.2M → Finish5914+45#23103#23058
TOTALS22982875-577
📊

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