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BOSTON MARATHON 2025

Justin Oconnell

Bib: 8307•M

MA

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
36:56
Rank: #28205
Start → 5K
36:56 | 11:53/mi
10K· 6.21 mi
1:15:08
Rank: #28174 (+31)
5K → 10K
38:12 | 12:18/mi
15K· 9.32 mi
1:57:49
Rank: #28273 (-99)
10K → 15K
42:41 | 13:44/mi
20K· 12.43 mi
2:45:05
Rank: #28344 (-71)
15K → 20K
47:16 | 15:13/mi
Half· 13.11 mi
2:54:44
Rank: #28346 (-2)
20K → Half
9:39 | 14:09/mi
25K· 15.53 mi
3:30:32
Rank: #28348 (-2)
Half → 25K
35:48 | 14:46/mi
30K· 18.64 mi
4:22:56
Rank: #28368 (-20)
25K → 30K
52:24 | 16:52/mi
20M
4:44:48
Rank: #28370 (-2)
30K → 20M
21:52 | 16:05/mi
21M
5:01:35
Rank: #28371 (-1)
20M → 21M
16:47 | 16:47/mi
35K· 21.75 mi
5:13:22
Rank: #28374 (-3)
21M → 35K
11:47 | 15:45/mi
23M
5:34:50
Rank: #28373 (+1)
35K → 23M
21:28 | 17:09/mi
24M
5:50:53
Rank: #28374 (-1)
23M → 24M
16:03 | 16:03/mi
40K· 24.85 mi
6:04:52
Rank: #28375 (-1)
24M → 40K
13:59 | 16:21/mi
25.2M
6:11:00
Rank: #28377 (-2)
40K → 25.2M
6:08 | 17:47/mi
Finish· 26.22 mi
6:25:46
Rank: #28378 (-1)
25.2M → Finish
14:46 | 14:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:54:44
Pace13:20 /mi
2nd Half
Distance13.11 mi
Time3:31:02
Pace16:06 /mi
📊Positive Split: 20.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5136:5611:5336:56
11:53
-
10K
6.21 mi11:25:031:15:0812:0538:12
12:18
+0:25
15K
9.32 mi12:07:441:57:4912:3842:41
13:44
+1:26
20K
12.43 mi12:55:002:45:0513:1747:16
15:13
+1:29
Half
13.11 mi13:04:392:54:4413:209:39
14:09
-1:04
25K
15.53 mi13:40:273:30:3213:3335:48
14:46
+0:37
30K
18.64 mi14:32:514:22:5614:0652:24
16:52
+2:06
20M
20.00 mi14:54:434:44:4814:1421:52
16:05
-0:47
21M
21.00 mi15:11:305:01:3514:2216:47
16:47
+0:42
35K
21.75 mi15:23:175:13:2214:2511:47
15:45
-1:02
23M
23.00 mi15:44:455:34:5014:3321:28
17:09
+1:24
24M
24.00 mi16:00:485:50:5314:3716:03
16:03
-1:06
40K
24.85 mi16:14:476:04:5214:4113:59
16:21
+0:18
25.2M
25.20 mi16:20:556:11:0014:436:08
17:47
+1:26
Finish
26.22 mi16:35:416:25:4614:4314:46
14:29
-3:18

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

11:53 /mi

Average Pace

14:43 /mi

Slowest Pace

17:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:02

46% of race

Time at Steady Pace

1:50:57

29% of race

Time at Slower Pace

1:36:47

25% of race

Average Pace: 14:43 /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 mi10:46:5136:5611:5336:56
11:53
#28205
10K
6.21 mi11:25:031:15:0812:0538:12
12:18
#28174
15K
9.32 mi12:07:441:57:4912:3842:41
13:44
#28273
20K
12.43 mi12:55:002:45:0513:1747:16
15:13
#28344
Half
13.11 mi13:04:392:54:4413:209:39
14:09
#28346
25K
15.53 mi13:40:273:30:3213:3335:48
14:46
#28348
30K
18.64 mi14:32:514:22:5614:0652:24
16:52
#28368
20M
20.00 mi14:54:434:44:4814:1421:52
16:05
#28370
21M
21.00 mi15:11:305:01:3514:2216:47
16:47
#28371
35K
21.75 mi15:23:175:13:2214:2511:47
15:45
#28374
23M
23.00 mi15:44:455:34:5014:3321:28
17:09
#28373
24M
24.00 mi16:00:485:50:5314:3716:03
16:03
#28374
40K
24.85 mi16:14:476:04:5214:4113:59
16:21
#28375
25.2M
25.20 mi16:20:556:11:0014:436:08
17:47
#28377
Finish
26.22 mi16:35:416:25:4614:4314:46
14:29
#28378
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi28205160371603728329(Top 100%)16067(Top 100%)16067(Top 285%)
10K6.21 mi3.10 mi28174+3116022+1516022+1528099(Top 99%)15991(Top 99%)15991(Top 283%)
15K9.32 mi3.11 mi28273-9916053-3116053-3128329(Top 100%)16067(Top 100%)16067(Top 285%)
20K12.43 mi3.11 mi28344-7116078-2516078-2528370(Top 100%)16085(Top 100%)16085(Top 285%)
Half13.11 mi0.68 mi28346-216080-216080-228279(Top 100%)16039(Top 100%)16039(Top 284%)
25K15.53 mi2.42 mi28348-216079+116079+128179(Top 99%)15992(Top 99%)15992(Top 283%)
30K18.64 mi3.11 mi28368-2016085-616085-628340(Top 100%)16069(Top 100%)16069(Top 285%)
20M20.00 mi1.36 mi28370-216086-116086-128185(Top 99%)15973(Top 99%)15973(Top 283%)
21M21.00 mi1.00 mi28371-1160861608628104(Top 99%)15923(Top 99%)15923(Top 282%)
35K21.75 mi0.75 mi28374-3160861608628207(Top 99%)15979(Top 99%)15979(Top 283%)
23M23.00 mi1.25 mi28373+116085+116085+128289(Top 100%)16026(Top 100%)16026(Top 284%)
24M24.00 mi1.00 mi28374-116086-116086-128238(Top 99%)15984(Top 99%)15984(Top 283%)
40K24.85 mi0.85 mi28375-116087-116087-128168(Top 99%)15942(Top 99%)15942(Top 283%)
25.2M25.20 mi0.35 mi28377-216088-116088-128200(Top 99%)15954(Top 99%)15954(Top 283%)
Finish26.22 mi1.02 mi28378-1160881608828172(Top 99%)15950(Top 99%)15950(Top 283%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

28329

Males

16067

M18-39

16067

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

28099

Males

15991

M18-39

15991

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

28329

Males

16067

M18-39

16067

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

28370

Males

16085

M18-39

16085

20K→Half

12.4 - 13.1 mi

Top 100%
×2stories
+19ft-37ft

Overall

28279

Males

16039

M18-39

16039

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

28179

Males

15992

M18-39

15992

25K→30K

15.5 - 18.6 mi

Top 100%
×9stories
+181ft-148ft

Overall

28340

Males

16069

M18-39

16069

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

28185

Males

15973

M18-39

15973

20M→21M

20.0 - 21.0 mi

Top 99%
×8stories
+106ft-24ft

Overall

28104

Males

15923

M18-39

15923

21M→35K

21.0 - 21.8 mi

Top 99%
×7stories
+17ft-86ft

Overall

28207

Males

15979

M18-39

15979

35K→23M

21.8 - 23.0 mi

Top 100%
×5stories
+23ft-63ft

Overall

28289

Males

16026

M18-39

16026

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

28238

Males

15984

M18-39

15984

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28168

Males

15942

M18-39

15942

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28200

Males

15954

M18-39

15954

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2stories
+22ft-21ft

Overall

28172

Males

15950

M18-39

15950

Passing Analysis

Category:
Athletes Passed
85
Passed By
258
Net Change
-173
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28205
5K → 10K5726+31#28205#28174
10K → 15K6105-99#28174#28273
15K → 20K374-71#28273#28344
20K → Half35-2#28344#28346
Half → 25K79-2#28346#28348
25K → 30K424-20#28348#28368
30K → 20M02-2#28368#28370
20M → 21M12-1#28370#28371
21M → 35K03-3#28371#28374
35K → 23M21+1#28374#28373
23M → 24M12-1#28373#28374
24M → 40K01-1#28374#28375
40K → 25.2M02-2#28375#28377
25.2M → Finish12-1#28377#28378
TOTALS85258-173
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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