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BOSTON MARATHON 2025

Sean O'Reilly

Bib: 384•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 1%
Gender (Male)
#0 / 16105
Top 2%
Division (M18-39)
#0 / 5642
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:58
Rank: #576
Start → 5K
17:58 | 5:47/mi
10K· 6.21 mi
35:42
Rank: #519 (+57)
5K → 10K
17:44 | 5:42/mi
15K· 9.32 mi
53:18
Rank: #438 (+81)
10K → 15K
17:36 | 5:40/mi
20K· 12.43 mi
1:11:14
Rank: #425 (+13)
15K → 20K
17:56 | 5:46/mi
Half· 13.11 mi
1:15:08
Rank: #425
20K → Half
3:54 | 5:43/mi
25K· 15.53 mi
1:28:58
Rank: #395 (+30)
Half → 25K
13:50 | 5:42/mi
30K· 18.64 mi
1:46:57
Rank: #356 (+39)
25K → 30K
17:59 | 5:47/mi
20M
1:55:13
Rank: #347 (+9)
30K → 20M
8:16 | 6:05/mi
21M
2:01:39
Rank: #350 (-3)
20M → 21M
6:26 | 6:26/mi
35K· 21.75 mi
2:06:09
Rank: #354 (-4)
21M → 35K
4:30 | 6:01/mi
23M
2:13:50
Rank: #361 (-7)
35K → 23M
7:41 | 6:08/mi
24M
2:19:49
Rank: #352 (+9)
23M → 24M
5:59 | 5:59/mi
40K· 24.85 mi
2:25:15
Rank: #358 (-6)
24M → 40K
5:26 | 6:21/mi
25.2M
2:27:36
Rank: #354 (+4)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:33:34
Rank: #345 (+9)
25.2M → Finish
5:58 | 5:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:08
Pace5:44 /mi
2nd Half
Distance13.11 mi
Time1:18:26
Pace5:59 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1417:585:4717:58
5:47
-
10K
6.21 mi10:35:5835:425:4517:44
5:42
-0:05
15K
9.32 mi10:53:3453:185:4317:36
5:40
-0:02
20K
12.43 mi11:11:301:11:145:4417:56
5:46
+0:06
Half
13.11 mi11:15:241:15:085:443:54
5:43
-0:03
25K
15.53 mi11:29:141:28:585:4413:50
5:42
-0:01
30K
18.64 mi11:47:131:46:575:4417:59
5:47
+0:05
20M
20.00 mi11:55:291:55:135:468:16
6:05
+0:18
21M
21.00 mi12:01:552:01:395:486:26
6:26
+0:21
35K
21.75 mi12:06:252:06:095:484:30
6:01
-0:25
23M
23.00 mi12:14:062:13:505:497:41
6:08
+0:07
24M
24.00 mi12:20:052:19:495:505:59
5:59
-0:09
40K
24.85 mi12:25:312:25:155:515:26
6:21
+0:22
25.2M
25.20 mi12:27:522:27:365:512:21
6:49
+0:28
Finish
26.22 mi12:33:502:33:345:525:58
5:51
-0:58

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

5:40 /mi

Average Pace

5:52 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:36

11% of race

Time at Steady Pace

1:41:18

66% of race

Time at Slower Pace

34:40

23% of race

Average Pace: 5:51 /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 mi10:18:1417:585:4717:58
5:47
#576
10K
6.21 mi10:35:5835:425:4517:44
5:42
#519
15K
9.32 mi10:53:3453:185:4317:36
5:40
#438
20K
12.43 mi11:11:301:11:145:4417:56
5:46
#425
Half
13.11 mi11:15:241:15:085:443:54
5:43
#425
25K
15.53 mi11:29:141:28:585:4413:50
5:42
#395
30K
18.64 mi11:47:131:46:575:4417:59
5:47
#356
20M
20.00 mi11:55:291:55:135:468:16
6:05
#347
21M
21.00 mi12:01:552:01:395:486:26
6:26
#350
35K
21.75 mi12:06:252:06:095:484:30
6:01
#354
23M
23.00 mi12:14:062:13:505:497:41
6:08
#361
24M
24.00 mi12:20:052:19:495:505:59
5:59
#352
40K
24.85 mi12:25:312:25:155:515:26
6:21
#358
25.2M
25.20 mi12:27:522:27:365:512:21
6:49
#354
Finish
26.22 mi12:33:502:33:345:525:58
5:51
#345
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi576534534326(Top 1%)298(Top 2%)298(Top 5%)
10K6.21 mi3.10 mi519+57481+53481+53465(Top 2%)429(Top 3%)429(Top 8%)
15K9.32 mi3.11 mi438+81403+78403+78326(Top 1%)298(Top 2%)298(Top 5%)
20K12.43 mi3.11 mi425+13391+12391+12404(Top 1%)375(Top 2%)375(Top 7%)
Half13.11 mi0.68 mi425393-2393-2433(Top 2%)405(Top 3%)405(Top 7%)
25K15.53 mi2.42 mi395+30363+30363+30291(Top 1%)265(Top 2%)265(Top 5%)
30K18.64 mi3.11 mi356+39326+37326+37239(Top 0.8%)217(Top 1%)217(Top 4%)
20M20.00 mi1.36 mi347+9317+9317+9498(Top 2%)466(Top 3%)466(Top 8%)
21M21.00 mi1.00 mi350-3321-4321-4554(Top 2%)522(Top 3%)522(Top 9%)
35K21.75 mi0.75 mi354-4325-4325-4746(Top 3%)697(Top 4%)697(Top 12%)
23M23.00 mi1.25 mi361-7334-9334-9542(Top 2%)510(Top 3%)510(Top 9%)
24M24.00 mi1.00 mi352+9325+9325+9535(Top 2%)499(Top 3%)499(Top 9%)
40K24.85 mi0.85 mi358-6331-6331-61079(Top 4%)1008(Top 6%)1008(Top 18%)
25.2M25.20 mi0.35 mi354+4327+4327+4954(Top 3%)872(Top 5%)872(Top 15%)
Finish26.22 mi1.02 mi345+9317+10317+10592(Top 2%)554(Top 3%)554(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

326

Males

298

M18-39

298

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

465

Males

429

M18-39

429

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

326

Males

298

M18-39

298

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

404

Males

375

M18-39

375

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

433

Males

405

M18-39

405

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

291

Males

265

M18-39

265

25K→30K

15.5 - 18.6 mi

Top 0.8%
×9stories
+181ft-148ft

Overall

239

Males

217

M18-39

217

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

498

Males

466

M18-39

466

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

554

Males

522

M18-39

522

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

746

Males

697

M18-39

697

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

542

Males

510

M18-39

510

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

535

Males

499

M18-39

499

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1079

Males

1008

M18-39

1008

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

954

Males

872

M18-39

872

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

592

Males

554

M18-39

554

Passing Analysis

Category:
Athletes Passed
318
Passed By
87
Net Change
+231
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#576
5K → 10K6710+57#576#519
10K → 15K821+81#519#438
15K → 20K2815+13#438#425
20K → Half440#425#425
Half → 25K322+30#425#395
25K → 30K390+39#395#356
30K → 20M101+9#356#347
20M → 21M912-3#347#350
21M → 35K04-4#350#354
35K → 23M1118-7#354#361
23M → 24M112+9#361#352
24M → 40K511-6#352#358
40K → 25.2M51+4#358#354
25.2M → Finish156+9#354#345
TOTALS31887+231
📊

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