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BOSTON MARATHON 2026

Brendan O'Brien

Bib: 27966β€’M

MA

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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51Β°/41Β°F
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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
32:16
3.11 mi
Rank: #26938
Start β†’ 5K
32:16 | 10:24/mi
10K
1:02:57
6.21 mi
Rank: #26232 (+706)
5K β†’ 10K
30:41 | 9:53/mi
15K
1:33:57
9.32 mi
Rank: #26023 (+209)
10K β†’ 15K
31:00 | 9:59/mi
20K
2:05:39
12.43 mi
Rank: #25877 (+146)
15K β†’ 20K
31:42 | 10:13/mi
HALF
2:12:53
13.11 mi
Rank: #25925 (-48)
20K β†’ HALF
7:14 | 10:37/mi
25K
2:40:32
15.53 mi
Rank: #26174 (-249)
HALF β†’ 25K
27:39 | 11:25/mi
30K
3:18:37
18.64 mi
Rank: #26413 (-239)
25K β†’ 30K
38:05 | 12:16/mi
20M
3:35:38
20.00 mi
Rank: #26484 (-71)
30K β†’ 20M
17:01 | 12:32/mi
21M
3:49:28
21.00 mi
Rank: #26563 (-79)
20M β†’ 21M
13:50 | 13:50/mi
35K
3:59:39
21.75 mi
Rank: #26679 (-116)
21M β†’ 35K
10:11 | 13:37/mi
23M
4:19:37
23.00 mi
Rank: #26994 (-315)
35K β†’ 23M
19:58 | 15:58/mi
24M
4:32:08
24.00 mi
Rank: #27030 (-36)
23M β†’ 24M
12:31 | 12:31/mi
40K
4:43:22
24.85 mi
Rank: #27060 (-30)
24M β†’ 40K
11:14 | 13:09/mi
25.2M
4:48:23
25.20 mi
Rank: #27071 (-11)
40K β†’ 25.2M
5:01 | 14:33/mi
FINISH
5:01:32
26.22 mi
Rank: #27154 (-83)
25.2M β†’ FINISH
13:09 | 12:55/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:12:53
Pace10:09 /mi
2nd Half
Distance13.11 mi
Time2:48:39
Pace12:52 /mi
πŸ“ŠPositive Split: 26.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:2332:1610:2432:16
10:24
-
10K
6.21 mi12:26:041:02:5710:0830:41
9:53
-0:31
15K
9.32 mi12:57:041:33:5710:0531:00
9:59
+0:06
20K
12.43 mi13:28:462:05:3910:0731:42
10:13
+0:14
HALF
13.11 mi13:36:002:12:5310:097:14
10:37
+0:24
25K
15.53 mi14:03:392:40:3210:2127:39
11:25
+0:48
30K
18.64 mi14:41:443:18:3710:4038:05
12:16
+0:51
20M
20.00 mi14:58:453:35:3810:4717:01
12:32
+0:16
21M
21.00 mi15:12:353:49:2810:5613:50
13:50
+1:18
35K
21.75 mi15:22:463:59:3911:0210:11
13:37
-0:13
23M
23.00 mi15:42:444:19:3711:1819:58
15:58
+2:21
24M
24.00 mi15:55:154:32:0811:2112:31
12:31
-3:27
40K
24.85 mi16:06:294:43:2211:2511:14
13:09
+0:38
25.2M
25.20 mi16:11:304:48:2311:275:01
14:33
+1:24
FINISH
26.22 mi16:24:395:01:3211:3113:09
12:55
-1:38

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

9:53 /mi

Average Pace

11:31 /mi

Slowest Pace

15:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:40:32

53% of race

Time at Steady Pace

1:32:00

31% of race

Time at Slower Pace

49:00

16% of race

Average Pace: 11:30 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:55:2332:1610:2432:16
10:24
#26938
10K
6.21 mi12:26:041:02:5710:0830:41
9:53
#26232
15K
9.32 mi12:57:041:33:5710:0531:00
9:59
#26023
20K
12.43 mi13:28:462:05:3910:0731:42
10:13
#25877
HALF
13.11 mi13:36:002:12:5310:097:14
10:37
#25925
25K
15.53 mi14:03:392:40:3210:2127:39
11:25
#26174
30K
18.64 mi14:41:443:18:3710:4038:05
12:16
#26413
20M
20.00 mi14:58:453:35:3810:4717:01
12:32
#26484
21M
21.00 mi15:12:353:49:2810:5613:50
13:50
#26563
35K
21.75 mi15:22:463:59:3911:0210:11
13:37
#26679
23M
23.00 mi15:42:444:19:3711:1819:58
15:58
#26994
24M
24.00 mi15:55:154:32:0811:2112:31
12:31
#27030
40K
24.85 mi16:06:294:43:2211:2511:14
13:09
#27060
25.2M
25.20 mi16:11:304:48:2311:275:01
14:33
#27071
FINISH
26.22 mi16:24:395:01:3211:3113:09
12:55
#27154
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 mi26938155981559825632(Top 88%)15013(Top 92%)15013(Top 262%)
10K6.21 mi3.10 mi26232+70615294+30415294+30425531(Top 88%)14975(Top 92%)14975(Top 262%)
15K9.32 mi3.11 mi26023+20915191+10315191+10325632(Top 88%)15013(Top 92%)15013(Top 262%)
20K12.43 mi3.11 mi25877+14615139+5215139+5225492(Top 88%)14925(Top 91%)14925(Top 261%)
HALF13.11 mi0.68 mi25925-4815152-1315152-1326853(Top 93%)15474(Top 95%)15474(Top 270%)
25K15.53 mi2.42 mi26174-24915234-8215234-8226893(Top 93%)15493(Top 95%)15493(Top 271%)
30K18.64 mi3.11 mi26413-23915307-7315307-7327080(Top 93%)15481(Top 95%)15481(Top 271%)
20M20.00 mi1.36 mi26484-7115328-2115328-2126984(Top 93%)15383(Top 94%)15383(Top 269%)
21M21.00 mi1.00 mi26563-7915350-2215350-2227189(Top 94%)15442(Top 95%)15442(Top 270%)
35K21.75 mi0.75 mi26679-11615404-5415404-5428116(Top 97%)15858(Top 97%)15858(Top 277%)
23M23.00 mi1.25 mi26994-31515528-12415528-12428853(Top 99%)16233(Top 99%)16233(Top 284%)
24M24.00 mi1.00 mi27030-3615534-615534-627186(Top 94%)15376(Top 94%)15376(Top 269%)
40K24.85 mi0.85 mi27060-3015544-1015544-1027172(Top 94%)15360(Top 94%)15360(Top 268%)
25.2M25.20 mi0.35 mi27071-1115543+115543+127641(Top 95%)15588(Top 95%)15588(Top 272%)
FINISH26.22 mi1.02 mi27154-8315567-2415567-2428153(Top 97%)15857(Top 97%)15857(Top 277%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
Γ—21
+97ft-345ft

Overall

25632

Males

15013

M18-39

15013

5K→10K

3.1 - 6.2 mi

Top 88%
Γ—5
+79ft-138ft

Overall

25531

Males

14975

M18-39

14975

10K→15K

6.2 - 9.3 mi

Top 88%
Γ—3
+67ft-78ft

Overall

25632

Males

15013

M18-39

15013

15K→20K

9.3 - 12.4 mi

Top 88%
Γ—5
+106ft-86ft

Overall

25492

Males

14925

M18-39

14925

20K→HALF

12.4 - 13.1 mi

Top 93%
Γ—2
+19ft-37ft

Overall

26853

Males

15474

M18-39

15474

HALF→25K

13.1 - 15.5 mi

Top 93%
Γ—4
+66ft-88ft

Overall

26893

Males

15493

M18-39

15493

25K→30K

15.5 - 18.6 mi

Top 93%
Γ—9
+181ft-148ft

Overall

27080

Males

15481

M18-39

15481

30K→20M

18.6 - 20.0 mi

Top 93%
Γ—5
+64ft-50ft

Overall

26984

Males

15383

M18-39

15383

20M→21M

20.0 - 21.0 mi

Top 94%
Γ—8
+106ft-24ft

Overall

27189

Males

15442

M18-39

15442

21M→35K

21.0 - 21.8 mi

Top 97%
Γ—7
+17ft-86ft

Overall

28116

Males

15858

M18-39

15858

35K→23M

21.8 - 23.0 mi

Top 99%
Γ—5
+23ft-63ft

Overall

28853

Males

16233

M18-39

16233

23M→24M

23.0 - 24.0 mi

Top 94%
Γ—6
+12ft-82ft

Overall

27186

Males

15376

M18-39

15376

24M→40K

24.0 - 24.9 mi

Top 94%
Γ—1
+6ft-20ft

Overall

27172

Males

15360

M18-39

15360

40K→25.2M

24.9 - 25.2 mi

Top 95%
Γ—1
+13ft-16ft

Overall

27641

Males

15588

M18-39

15588

25.2M→FINISH

25.2 - 26.2 mi

Top 97%
Γ—2
+22ft-21ft

Overall

28153

Males

15857

M18-39

15857

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1365
Passed By
1581
Net Change
-216
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#26938
5K β†’ 10K72822+706#26938#26232
10K β†’ 15K23829+209#26232#26023
15K β†’ 20K19448+146#26023#25877
20K β†’ HALF1260-48#25877#25925
HALF β†’ 25K32281-249#25925#26174
25K β†’ 30K50289-239#26174#26413
30K β†’ 20M30101-71#26413#26484
20M β†’ 21M24103-79#26484#26563
21M β†’ 35K5121-116#26563#26679
35K β†’ 23M7322-315#26679#26994
23M β†’ 24M2056-36#26994#27030
24M β†’ 40K1242-30#27030#27060
40K β†’ 25.2M819-11#27060#27071
25.2M β†’ FINISH588-83#27071#27154
TOTALS13651581-216
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing