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BOSTON MARATHON 2025

Colm O'Brien O'Leary

Bib: 32230•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:24
Rank: #27208
Start → 5K
33:24 | 10:45/mi
10K· 6.21 mi
1:08:38
Rank: #27377 (-169)
5K → 10K
35:14 | 11:20/mi
15K· 9.32 mi
1:44:18
Rank: #27303 (+74)
10K → 15K
35:40 | 11:29/mi
20K· 12.43 mi
2:20:19
Rank: #27144 (+159)
15K → 20K
36:01 | 11:36/mi
Half· 13.11 mi
2:28:17
Rank: #27150 (-6)
20K → Half
7:58 | 11:41/mi
25K· 15.53 mi
2:57:38
Rank: #27051 (+99)
Half → 25K
29:21 | 12:06/mi
30K· 18.64 mi
3:37:45
Rank: #27002 (+49)
25K → 30K
40:07 | 12:55/mi
20M
3:55:24
Rank: #26965 (+37)
30K → 20M
17:39 | 12:59/mi
21M
4:09:35
Rank: #26963 (+2)
20M → 21M
14:11 | 14:11/mi
35K· 21.75 mi
4:19:02
Rank: #26966 (-3)
21M → 35K
9:27 | 12:38/mi
23M
4:37:24
Rank: #27030 (-64)
35K → 23M
18:22 | 14:40/mi
24M
4:50:22
Rank: #27025 (+5)
23M → 24M
12:58 | 12:58/mi
40K· 24.85 mi
5:02:47
Rank: #27060 (-35)
24M → 40K
12:25 | 14:31/mi
25.2M
5:08:28
Rank: #27090 (-30)
40K → 25.2M
5:41 | 16:29/mi
Finish· 26.22 mi
5:20:14
Rank: #27074 (+16)
25.2M → Finish
11:46 | 11:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:28:17
Pace11:19 /mi
2nd Half
Distance13.11 mi
Time2:51:57
Pace13:07 /mi
📊Positive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:2233:2410:4533:24
10:45
-
10K
6.21 mi12:33:361:08:3811:0335:14
11:20
+0:35
15K
9.32 mi13:09:161:44:1811:1135:40
11:29
+0:09
20K
12.43 mi13:45:172:20:1911:1736:01
11:36
+0:07
Half
13.11 mi13:53:152:28:1711:197:58
11:41
+0:05
25K
15.53 mi14:22:362:57:3811:2629:21
12:06
+0:25
30K
18.64 mi15:02:433:37:4511:4140:07
12:55
+0:49
20M
20.00 mi15:20:223:55:2411:4617:39
12:59
+0:04
21M
21.00 mi15:34:334:09:3511:5314:11
14:11
+1:12
35K
21.75 mi15:44:004:19:0211:559:27
12:38
-1:33
23M
23.00 mi16:02:224:37:2412:0418:22
14:40
+2:02
24M
24.00 mi16:15:204:50:2212:0612:58
12:58
-1:42
40K
24.85 mi16:27:455:02:4712:1112:25
14:31
+1:33
25.2M
25.20 mi16:33:265:08:2812:145:41
16:29
+1:58
Finish
26.22 mi16:45:125:20:1412:1311:46
11:33
-4:56

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

10:45 /mi

Average Pace

12:13 /mi

Slowest Pace

16:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:03

50% of race

Time at Steady Pace

1:49:32

34% of race

Time at Slower Pace

50:39

16% of race

Average Pace: 12:13 /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 mi11:58:2233:2410:4533:24
10:45
#27208
10K
6.21 mi12:33:361:08:3811:0335:14
11:20
#27377
15K
9.32 mi13:09:161:44:1811:1135:40
11:29
#27303
20K
12.43 mi13:45:172:20:1911:1736:01
11:36
#27144
Half
13.11 mi13:53:152:28:1711:197:58
11:41
#27150
25K
15.53 mi14:22:362:57:3811:2629:21
12:06
#27051
30K
18.64 mi15:02:433:37:4511:4140:07
12:55
#27002
20M
20.00 mi15:20:223:55:2411:4617:39
12:59
#26965
21M
21.00 mi15:34:334:09:3511:5314:11
14:11
#26963
35K
21.75 mi15:44:004:19:0211:559:27
12:38
#26966
23M
23.00 mi16:02:224:37:2412:0418:22
14:40
#27030
24M
24.00 mi16:15:204:50:2212:0612:58
12:58
#27025
40K
24.85 mi16:27:455:02:4712:1112:25
14:31
#27060
25.2M
25.20 mi16:33:265:08:2812:145:41
16:29
#27090
Finish
26.22 mi16:45:125:20:1412:1311:46
11:33
#27074
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi27208156871568727213(Top 96%)15649(Top 97%)15649(Top 277%)
10K6.21 mi3.10 mi27377-16915729-4215729-4227436(Top 97%)15740(Top 98%)15740(Top 279%)
15K9.32 mi3.11 mi27303+7415706+2315706+2327213(Top 96%)15649(Top 97%)15649(Top 277%)
20K12.43 mi3.11 mi27144+15915628+7815628+7826732(Top 94%)15430(Top 96%)15430(Top 273%)
Half13.11 mi0.68 mi27150-6156281562827215(Top 96%)15609(Top 97%)15609(Top 277%)
25K15.53 mi2.42 mi27051+9915570+5815570+5826548(Top 93%)15315(Top 95%)15315(Top 271%)
30K18.64 mi3.11 mi27002+4915540+3015540+3026589(Top 94%)15250(Top 95%)15250(Top 270%)
20M20.00 mi1.36 mi26965+3715516+2415516+2426434(Top 93%)15121(Top 94%)15121(Top 268%)
21M21.00 mi1.00 mi26963+215503+1315503+1326428(Top 93%)15093(Top 94%)15093(Top 268%)
35K21.75 mi0.75 mi26966-315501+215501+226606(Top 94%)15144(Top 94%)15144(Top 268%)
23M23.00 mi1.25 mi27030-6415517-1615517-1627747(Top 98%)15703(Top 98%)15703(Top 278%)
24M24.00 mi1.00 mi27025+515508+915508+926826(Top 94%)15215(Top 94%)15215(Top 270%)
40K24.85 mi0.85 mi27060-3515516-815516-827532(Top 97%)15577(Top 97%)15577(Top 276%)
25.2M25.20 mi0.35 mi27090-3015523-715523-727910(Top 98%)15768(Top 98%)15768(Top 279%)
Finish26.22 mi1.02 mi27074+1615512+1115512+1126210(Top 92%)14891(Top 92%)14891(Top 264%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

27213

Males

15649

M18-39

15649

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

27436

Males

15740

M18-39

15740

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

27213

Males

15649

M18-39

15649

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

26732

Males

15430

M18-39

15430

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

27215

Males

15609

M18-39

15609

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

26548

Males

15315

M18-39

15315

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26589

Males

15250

M18-39

15250

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

26434

Males

15121

M18-39

15121

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

26428

Males

15093

M18-39

15093

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

26606

Males

15144

M18-39

15144

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

27747

Males

15703

M18-39

15703

23M→24M

23.0 - 24.0 mi

Top 94%
×6stories
+12ft-82ft

Overall

26826

Males

15215

M18-39

15215

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

27532

Males

15577

M18-39

15577

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27910

Males

15768

M18-39

15768

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

26210

Males

14891

M18-39

14891

Passing Analysis

Category:
Athletes Passed
814
Passed By
680
Net Change
+134
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27208
5K → 10K82251-169#27208#27377
10K → 15K13864+74#27377#27303
15K → 20K18425+159#27303#27144
20K → Half1622-6#27144#27150
Half → 25K12829+99#27150#27051
25K → 30K9849+49#27051#27002
30K → 20M5821+37#27002#26965
20M → 21M2321+2#26965#26963
21M → 35K1417-3#26963#26966
35K → 23M1276-64#26966#27030
23M → 24M2217+5#27030#27025
24M → 40K1146-35#27025#27060
40K → 25.2M333-30#27060#27090
25.2M → Finish259+16#27090#27074
TOTALS814680+134
📊

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