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BOSTON MARATHON 2026

Conor O'Brien

Bib: 32388•M

MA

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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:48
3.11 mi
Rank: #20766
Start → 5K
26:48 | 8:38/mi
10K
54:13
6.21 mi
Rank: #21464 (-698)
5K → 10K
27:25 | 8:50/mi
15K
1:22:34
9.32 mi
Rank: #22048 (-584)
10K → 15K
28:21 | 9:08/mi
20K
1:49:16
12.43 mi
Rank: #21508 (+540)
15K → 20K
26:42 | 8:36/mi
HALF
1:55:18
13.11 mi
Rank: #21531 (-23)
20K → HALF
6:02 | 8:52/mi
25K
2:18:21
15.53 mi
Rank: #21822 (-291)
HALF → 25K
23:03 | 9:31/mi
30K
2:49:47
18.64 mi
Rank: #22230 (-408)
25K → 30K
31:26 | 10:08/mi
20M
3:03:43
20.00 mi
Rank: #22349 (-119)
30K → 20M
13:56 | 10:16/mi
21M
3:14:21
21.00 mi
Rank: #22369 (-20)
20M → 21M
10:38 | 10:38/mi
35K
3:21:36
21.75 mi
Rank: #22355 (+14)
21M → 35K
7:15 | 9:42/mi
23M
3:35:05
23.00 mi
Rank: #22482 (-127)
35K → 23M
13:29 | 10:47/mi
24M
3:45:37
24.00 mi
Rank: #22580 (-98)
23M → 24M
10:32 | 10:32/mi
40K
3:56:17
24.85 mi
Rank: #22792 (-212)
24M → 40K
10:40 | 12:29/mi
25.2M
4:00:49
25.20 mi
Rank: #22867 (-75)
40K → 25.2M
4:32 | 13:09/mi
FINISH
4:13:00
26.22 mi
Rank: #23120 (-253)
25.2M → FINISH
12:11 | 11:58/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:55:18
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:17:42
Pace10:31 /mi
📊Positive Split: 19.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:4926:488:3826:48
8:38
-
10K
6.21 mi12:22:1454:138:4427:25
8:50
+0:12
15K
9.32 mi12:50:351:22:348:5228:21
9:08
+0:18
20K
12.43 mi13:17:171:49:168:4826:42
8:36
-0:32
HALF
13.11 mi13:23:191:55:188:486:02
8:52
+0:16
25K
15.53 mi13:46:222:18:218:5523:03
9:31
+0:39
30K
18.64 mi14:17:482:49:479:0731:26
10:08
+0:37
20M
20.00 mi14:31:443:03:439:1213:56
10:16
+0:08
21M
21.00 mi14:42:223:14:219:1610:38
10:38
+0:22
35K
21.75 mi14:49:373:21:369:177:15
9:42
-0:56
23M
23.00 mi15:03:063:35:059:2213:29
10:47
+1:05
24M
24.00 mi15:13:383:45:379:2510:32
10:32
-0:15
40K
24.85 mi15:24:183:56:179:3110:40
12:29
+1:57
25.2M
25.20 mi15:28:504:00:499:344:32
13:09
+0:40
FINISH
26.22 mi15:41:014:13:009:4012:11
11:58
-1:11

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:36 /mi

Average Pace

9:39 /mi

Slowest Pace

13:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:55:18

46% of race

Time at Steady Pace

1:50:19

44% of race

Time at Slower Pace

27:23

11% of race

Average Pace: 9:39 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:54:4926:488:3826:48
8:38
#20766
10K
6.21 mi12:22:1454:138:4427:25
8:50
#21464
15K
9.32 mi12:50:351:22:348:5228:21
9:08
#22048
20K
12.43 mi13:17:171:49:168:4826:42
8:36
#21508
HALF
13.11 mi13:23:191:55:188:486:02
8:52
#21531
25K
15.53 mi13:46:222:18:218:5523:03
9:31
#21822
30K
18.64 mi14:17:482:49:479:0731:26
10:08
#22230
20M
20.00 mi14:31:443:03:439:1213:56
10:16
#22349
21M
21.00 mi14:42:223:14:219:1610:38
10:38
#22369
35K
21.75 mi14:49:373:21:369:177:15
9:42
#22355
23M
23.00 mi15:03:063:35:059:2213:29
10:47
#22482
24M
24.00 mi15:13:383:45:379:2510:32
10:32
#22580
40K
24.85 mi15:24:183:56:179:3110:40
12:29
#22792
25.2M
25.20 mi15:28:504:00:499:344:32
13:09
#22867
FINISH
26.22 mi15:41:014:13:009:4012:11
11:58
#23120
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20766126391263923223(Top 80%)13870(Top 85%)13870(Top 242%)
10K6.21 mi3.10 mi21464-69812979-34012979-34022017(Top 76%)13268(Top 81%)13268(Top 232%)
15K9.32 mi3.11 mi22048-58413272-29313272-29323223(Top 80%)13870(Top 85%)13870(Top 242%)
20K12.43 mi3.11 mi21508+54012997+27512997+27519834(Top 68%)12218(Top 75%)12218(Top 213%)
HALF13.11 mi0.68 mi21531-2313009-1213009-1222026(Top 76%)13284(Top 81%)13284(Top 232%)
25K15.53 mi2.42 mi21822-29113159-15013159-15023018(Top 79%)13713(Top 84%)13713(Top 240%)
30K18.64 mi3.11 mi22230-40813334-17513334-17523416(Top 81%)13806(Top 84%)13806(Top 241%)
20M20.00 mi1.36 mi22349-11913381-4713381-4723234(Top 80%)13647(Top 84%)13647(Top 238%)
21M21.00 mi1.00 mi22369-2013375+613375+622258(Top 77%)13148(Top 80%)13148(Top 230%)
35K21.75 mi0.75 mi22355+1413361+1413361+1422316(Top 77%)13120(Top 80%)13120(Top 229%)
23M23.00 mi1.25 mi22482-12713395-3413395-3423992(Top 83%)13850(Top 85%)13850(Top 242%)
24M24.00 mi1.00 mi22580-9813423-2813423-2824164(Top 83%)13910(Top 85%)13910(Top 243%)
40K24.85 mi0.85 mi22792-21213513-9013513-9026490(Top 91%)15005(Top 92%)15005(Top 262%)
25.2M25.20 mi0.35 mi22867-7513552-3913552-3926235(Top 90%)14893(Top 91%)14893(Top 260%)
FINISH26.22 mi1.02 mi23120-25313677-12513677-12527414(Top 94%)15488(Top 95%)15488(Top 271%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21
+97ft-345ft

Overall

23223

Males

13870

M18-39

13870

5K→10K

3.1 - 6.2 mi

Top 76%
×5
+79ft-138ft

Overall

22017

Males

13268

M18-39

13268

10K→15K

6.2 - 9.3 mi

Top 80%
×3
+67ft-78ft

Overall

23223

Males

13870

M18-39

13870

15K→20K

9.3 - 12.4 mi

Top 68%
×5
+106ft-86ft

Overall

19834

Males

12218

M18-39

12218

20K→HALF

12.4 - 13.1 mi

Top 76%
×2
+19ft-37ft

Overall

22026

Males

13284

M18-39

13284

HALF→25K

13.1 - 15.5 mi

Top 79%
×4
+66ft-88ft

Overall

23018

Males

13713

M18-39

13713

25K→30K

15.5 - 18.6 mi

Top 81%
×9
+181ft-148ft

Overall

23416

Males

13806

M18-39

13806

30K→20M

18.6 - 20.0 mi

Top 80%
×5
+64ft-50ft

Overall

23234

Males

13647

M18-39

13647

20M→21M

20.0 - 21.0 mi

Top 77%
×8
+106ft-24ft

Overall

22258

Males

13148

M18-39

13148

21M→35K

21.0 - 21.8 mi

Top 77%
×7
+17ft-86ft

Overall

22316

Males

13120

M18-39

13120

35K→23M

21.8 - 23.0 mi

Top 83%
×5
+23ft-63ft

Overall

23992

Males

13850

M18-39

13850

23M→24M

23.0 - 24.0 mi

Top 83%
×6
+12ft-82ft

Overall

24164

Males

13910

M18-39

13910

24M→40K

24.0 - 24.9 mi

Top 91%
×1
+6ft-20ft

Overall

26490

Males

15005

M18-39

15005

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1
+13ft-16ft

Overall

26235

Males

14893

M18-39

14893

25.2M→FINISH

25.2 - 26.2 mi

Top 94%
×2
+22ft-21ft

Overall

27414

Males

15488

M18-39

15488

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1076
Passed By
3430
Net Change
-2354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20766
5K → 10K71769-698#20766#21464
10K → 15K39623-584#21464#22048
15K → 20K55414+540#22048#21508
20K → HALF2447-23#21508#21531
HALF → 25K56347-291#21531#21822
25K → 30K74482-408#21822#22230
30K → 20M46165-119#22230#22349
20M → 21M7292-20#22349#22369
21M → 35K5642+14#22369#22355
35K → 23M39166-127#22355#22482
23M → 24M22120-98#22482#22580
24M → 40K15227-212#22580#22792
40K → 25.2M378-75#22792#22867
25.2M → FINISH5258-253#22867#23120
TOTALS10763430-2354
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing