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BOSTON MARATHON 2025

Paul O'Connor

Bib: 3222•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 15%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M40-44)
#0 / 2247
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:15
Rank: #3964
Start → 5K
20:15 | 6:31/mi
10K· 6.21 mi
41:00
Rank: #4487 (-523)
5K → 10K
20:45 | 6:41/mi
15K· 9.32 mi
1:01:48
Rank: #4637 (-150)
10K → 15K
20:48 | 6:42/mi
20K· 12.43 mi
1:22:44
Rank: #4607 (+30)
15K → 20K
20:56 | 6:44/mi
Half· 13.11 mi
1:27:10
Rank: #4557 (+50)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:43:22
Rank: #4404 (+153)
Half → 25K
16:12 | 6:41/mi
30K· 18.64 mi
2:04:16
Rank: #4051 (+353)
25K → 30K
20:54 | 6:44/mi
20M
2:13:12
Rank: #3836 (+215)
30K → 20M
8:56 | 6:34/mi
21M
2:19:43
Rank: #3575 (+261)
20M → 21M
6:31 | 6:31/mi
35K· 21.75 mi
2:24:36
Rank: #3501 (+74)
21M → 35K
4:53 | 6:31/mi
23M
2:32:19
Rank: #3185 (+316)
35K → 23M
7:43 | 6:10/mi
24M
2:38:24
Rank: #2989 (+196)
23M → 24M
6:05 | 6:05/mi
40K· 24.85 mi
2:43:34
Rank: #2814 (+175)
24M → 40K
5:10 | 6:03/mi
25.2M
2:45:51
Rank: #2738 (+76)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:51:52
Rank: #2612 (+126)
25.2M → Finish
6:01 | 5:54/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:27:10
Pace6:39 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:24:42
Pace6:28 /mi
📊Negative Split: 2.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4520:156:3120:15
6:31
-
10K
6.21 mi10:42:3041:006:3620:45
6:41
+0:10
15K
9.32 mi11:03:181:01:486:3820:48
6:42
+0:01
20K
12.43 mi11:24:141:22:446:3920:56
6:44
+0:02
Half
13.11 mi11:28:401:27:106:394:26
6:30
-0:14
25K
15.53 mi11:44:521:43:226:3916:12
6:41
+0:11
30K
18.64 mi12:05:462:04:166:4020:54
6:44
+0:03
20M
20.00 mi12:14:422:13:126:408:56
6:34
-0:10
21M
21.00 mi12:21:132:19:436:396:31
6:31
-0:03
35K
21.75 mi12:26:062:24:366:394:53
6:31
0:00
23M
23.00 mi12:33:492:32:196:377:43
6:10
-0:21
24M
24.00 mi12:39:542:38:246:366:05
6:05
-0:05
40K
24.85 mi12:45:042:43:346:355:10
6:03
-0:02
25.2M
25.20 mi12:47:212:45:516:352:17
6:37
+0:34
Finish
26.22 mi12:53:222:51:526:346:01
5:54
-0:43

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

5:54 /mi

Average Pace

6:34 /mi

Slowest Pace

6:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:59

15% of race

Time at Steady Pace

2:26:53

85% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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 mi10:21:4520:156:3120:15
6:31
#3964
10K
6.21 mi10:42:3041:006:3620:45
6:41
#4487
15K
9.32 mi11:03:181:01:486:3820:48
6:42
#4637
20K
12.43 mi11:24:141:22:446:3920:56
6:44
#4607
Half
13.11 mi11:28:401:27:106:394:26
6:30
#4557
25K
15.53 mi11:44:521:43:226:3916:12
6:41
#4404
30K
18.64 mi12:05:462:04:166:4020:54
6:44
#4051
20M
20.00 mi12:14:422:13:126:408:56
6:34
#3836
21M
21.00 mi12:21:132:19:436:396:31
6:31
#3575
35K
21.75 mi12:26:062:24:366:394:53
6:31
#3501
23M
23.00 mi12:33:492:32:196:377:43
6:10
#3185
24M
24.00 mi12:39:542:38:246:366:05
6:05
#2989
40K
24.85 mi12:45:042:43:346:355:10
6:03
#2814
25.2M
25.20 mi12:47:212:45:516:352:17
6:37
#2738
Finish
26.22 mi12:53:222:51:526:346:01
5:54
#2612
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3964375137515029(Top 18%)4674(Top 29%)4674(Top 208%)
10K6.21 mi3.10 mi4487-5234217-4664217-4665153(Top 18%)4796(Top 30%)4796(Top 213%)
15K9.32 mi3.11 mi4637-1504343-1264343-1265029(Top 18%)4674(Top 29%)4674(Top 208%)
20K12.43 mi3.11 mi4607+304310+334310+334768(Top 17%)4413(Top 27%)4413(Top 196%)
Half13.11 mi0.68 mi4557+504264+464264+463669(Top 13%)3469(Top 22%)3469(Top 154%)
25K15.53 mi2.42 mi4404+1534127+1374127+1373995(Top 14%)3727(Top 23%)3727(Top 166%)
30K18.64 mi3.11 mi4051+3533801+3263801+3263014(Top 11%)2834(Top 18%)2834(Top 126%)
20M20.00 mi1.36 mi3836+2153610+1913610+1911947(Top 7%)1844(Top 11%)1844(Top 82%)
21M21.00 mi1.00 mi3575+2613370+2403370+240736(Top 3%)695(Top 4%)695(Top 31%)
35K21.75 mi0.75 mi3501+743303+673303+672545(Top 9%)2364(Top 15%)2364(Top 105%)
23M23.00 mi1.25 mi3185+3163005+2983005+298611(Top 2%)576(Top 4%)576(Top 26%)
24M24.00 mi1.00 mi2989+1962827+1782827+178749(Top 3%)704(Top 4%)704(Top 31%)
40K24.85 mi0.85 mi2814+1752665+1622665+162465(Top 2%)433(Top 3%)433(Top 19%)
25.2M25.20 mi0.35 mi2738+762592+732592+73660(Top 2%)615(Top 4%)615(Top 27%)
Finish26.22 mi1.02 mi2612+1262472+1202472+120710(Top 2%)670(Top 4%)670(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5029

Males

4674

M40-44

4674

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5153

Males

4796

M40-44

4796

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5029

Males

4674

M40-44

4674

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4768

Males

4413

M40-44

4413

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3669

Males

3469

M40-44

3469

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3995

Males

3727

M40-44

3727

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3014

Males

2834

M40-44

2834

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1947

Males

1844

M40-44

1844

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

736

Males

695

M40-44

695

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2545

Males

2364

M40-44

2364

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

611

Males

576

M40-44

576

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

749

Males

704

M40-44

704

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

465

Males

433

M40-44

433

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

660

Males

615

M40-44

615

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

710

Males

670

M40-44

670

Passing Analysis

Category:
Athletes Passed
2260
Passed By
908
Net Change
+1352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3964
5K → 10K18541-523#3964#4487
10K → 15K57207-150#4487#4637
15K → 20K132102+30#4637#4607
20K → Half544+50#4607#4557
Half → 25K18229+153#4557#4404
25K → 30K36714+353#4404#4051
30K → 20M2150+215#4051#3836
20M → 21M2610+261#3836#3575
21M → 35K817+74#3575#3501
35K → 23M3204+316#3501#3185
23M → 24M1960+196#3185#2989
24M → 40K1750+175#2989#2814
40K → 25.2M760+76#2814#2738
25.2M → Finish1260+126#2738#2612
TOTALS2260908+1352
📊

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