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BOSTON MARATHON 2026

Bradford Cassidy

Bib: 31652•M

NY

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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
29:27
3.11 mi
Rank: #24415
Start → 5K
29:27 | 9:29/mi
10K
58:21
6.21 mi
Rank: #24198 (+217)
5K → 10K
28:54 | 9:19/mi
15K
1:25:53
9.32 mi
Rank: #23600 (+598)
10K → 15K
27:32 | 8:52/mi
20K
1:53:33
12.43 mi
Rank: #23096 (+504)
15K → 20K
27:40 | 8:55/mi
HALF
1:59:38
13.11 mi
Rank: #23058 (+38)
20K → HALF
6:05 | 8:56/mi
25K
2:21:36
15.53 mi
Rank: #22780 (+278)
HALF → 25K
21:58 | 9:04/mi
30K
2:51:44
18.64 mi
Rank: #22681 (+99)
25K → 30K
30:08 | 9:42/mi
20M
3:05:06
20.00 mi
Rank: #22626 (+55)
30K → 20M
13:22 | 9:51/mi
21M
3:15:35
21.00 mi
Rank: #22566 (+60)
20M → 21M
10:29 | 10:29/mi
35K
3:22:46
21.75 mi
Rank: #22555 (+11)
21M → 35K
7:11 | 9:37/mi
23M
3:35:21
23.00 mi
Rank: #22520 (+35)
35K → 23M
12:35 | 10:04/mi
24M
3:45:39
24.00 mi
Rank: #22588 (-68)
23M → 24M
10:18 | 10:18/mi
40K
3:54:26
24.85 mi
Rank: #22582 (+6)
24M → 40K
8:47 | 10:17/mi
25.2M
3:58:35
25.20 mi
Rank: #22614 (-32)
40K → 25.2M
4:09 | 12:03/mi
FINISH
4:08:32
26.22 mi
Rank: #22631 (-17)
25.2M → FINISH
9:57 | 9:46/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:59:38
Pace9:08 /mi
2nd Half
Distance13.11 mi
Time2:08:54
Pace9:50 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3729:279:2929:27
9:29
-
10K
6.21 mi12:25:3158:219:2428:54
9:19
-0:10
15K
9.32 mi12:53:031:25:539:1327:32
8:52
-0:27
20K
12.43 mi13:20:431:53:339:0927:40
8:55
+0:03
HALF
13.11 mi13:26:481:59:389:086:05
8:56
+0:01
25K
15.53 mi13:48:462:21:369:0721:58
9:04
+0:08
30K
18.64 mi14:18:542:51:449:1330:08
9:42
+0:38
20M
20.00 mi14:32:163:05:069:1613:22
9:51
+0:09
21M
21.00 mi14:42:453:15:359:1910:29
10:29
+0:38
35K
21.75 mi14:49:563:22:469:207:11
9:37
-0:52
23M
23.00 mi15:02:313:35:219:2212:35
10:04
+0:27
24M
24.00 mi15:12:493:45:399:2510:18
10:18
+0:14
40K
24.85 mi15:21:363:54:269:268:47
10:17
-0:01
25.2M
25.20 mi15:25:453:58:359:294:09
12:03
+1:46
FINISH
26.22 mi15:35:424:08:329:309:57
9:46
-2:17

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

8:52 /mi

Average Pace

9:29 /mi

Slowest Pace

12:03 /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

1:23:15

33% of race

Time at Steady Pace

2:11:34

53% of race

Time at Slower Pace

33:43

14% of race

Average Pace: 9:29 /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 mi11:56:3729:279:2929:27
9:29
#24415
10K
6.21 mi12:25:3158:219:2428:54
9:19
#24198
15K
9.32 mi12:53:031:25:539:1327:32
8:52
#23600
20K
12.43 mi13:20:431:53:339:0927:40
8:55
#23096
HALF
13.11 mi13:26:481:59:389:086:05
8:56
#23058
25K
15.53 mi13:48:462:21:369:0721:58
9:04
#22780
30K
18.64 mi14:18:542:51:449:1330:08
9:42
#22681
20M
20.00 mi14:32:163:05:069:1613:22
9:51
#22626
21M
21.00 mi14:42:453:15:359:1910:29
10:29
#22566
35K
21.75 mi14:49:563:22:469:207:11
9:37
#22555
23M
23.00 mi15:02:313:35:219:2212:35
10:04
#22520
24M
24.00 mi15:12:493:45:399:2510:18
10:18
#22588
40K
24.85 mi15:21:363:54:269:268:47
10:17
#22582
25.2M
25.20 mi15:25:453:58:359:294:09
12:03
#22614
FINISH
26.22 mi15:35:424:08:329:309:57
9:46
#22631
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 mi24415144311443122026(Top 76%)13281(Top 81%)13281(Top 232%)
10K6.21 mi3.10 mi24198+21714352+7914352+7923969(Top 83%)14230(Top 87%)14230(Top 249%)
15K9.32 mi3.11 mi23600+59814049+30314049+30322026(Top 76%)13281(Top 81%)13281(Top 232%)
20K12.43 mi3.11 mi23096+50413786+26313786+26321497(Top 74%)13003(Top 80%)13003(Top 227%)
HALF13.11 mi0.68 mi23058+3813773+1313773+1322375(Top 77%)13442(Top 82%)13442(Top 235%)
25K15.53 mi2.42 mi22780+27813623+15013623+15021431(Top 74%)12968(Top 79%)12968(Top 227%)
30K18.64 mi3.11 mi22681+9913547+7613547+7622255(Top 77%)13272(Top 81%)13272(Top 232%)
20M20.00 mi1.36 mi22626+5513506+4113506+4122134(Top 76%)13137(Top 80%)13137(Top 230%)
21M21.00 mi1.00 mi22566+6013463+4313463+4321920(Top 76%)12982(Top 79%)12982(Top 227%)
35K21.75 mi0.75 mi22555+1113455+813455+822064(Top 76%)12994(Top 80%)12994(Top 227%)
23M23.00 mi1.25 mi22520+3513415+4013415+4022291(Top 77%)13060(Top 80%)13060(Top 228%)
24M24.00 mi1.00 mi22588-6813427-1213427-1223597(Top 81%)13650(Top 84%)13650(Top 239%)
40K24.85 mi0.85 mi22582+613410+1713410+1722638(Top 78%)13131(Top 80%)13131(Top 229%)
25.2M25.20 mi0.35 mi22614-3213419-913419-924468(Top 84%)13995(Top 86%)13995(Top 245%)
FINISH26.22 mi1.02 mi22631-1713416+313416+323173(Top 80%)13389(Top 82%)13389(Top 234%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

22026

Males

13281

M18-39

13281

5K→10K

3.1 - 6.2 mi

Top 83%
×5
+79ft-138ft

Overall

23969

Males

14230

M18-39

14230

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

22026

Males

13281

M18-39

13281

15K→20K

9.3 - 12.4 mi

Top 74%
×5
+106ft-86ft

Overall

21497

Males

13003

M18-39

13003

20K→HALF

12.4 - 13.1 mi

Top 77%
×2
+19ft-37ft

Overall

22375

Males

13442

M18-39

13442

HALF→25K

13.1 - 15.5 mi

Top 74%
×4
+66ft-88ft

Overall

21431

Males

12968

M18-39

12968

25K→30K

15.5 - 18.6 mi

Top 77%
×9
+181ft-148ft

Overall

22255

Males

13272

M18-39

13272

30K→20M

18.6 - 20.0 mi

Top 76%
×5
+64ft-50ft

Overall

22134

Males

13137

M18-39

13137

20M→21M

20.0 - 21.0 mi

Top 76%
×8
+106ft-24ft

Overall

21920

Males

12982

M18-39

12982

21M→35K

21.0 - 21.8 mi

Top 76%
×7
+17ft-86ft

Overall

22064

Males

12994

M18-39

12994

35K→23M

21.8 - 23.0 mi

Top 77%
×5
+23ft-63ft

Overall

22291

Males

13060

M18-39

13060

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23597

Males

13650

M18-39

13650

24M→40K

24.0 - 24.9 mi

Top 78%
×1
+6ft-20ft

Overall

22638

Males

13131

M18-39

13131

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1
+13ft-16ft

Overall

24468

Males

13995

M18-39

13995

25.2M→FINISH

25.2 - 26.2 mi

Top 80%
×2
+22ft-21ft

Overall

23173

Males

13389

M18-39

13389

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2492
Passed By
708
Net Change
+1784
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24415
5K → 10K336119+217#24415#24198
10K → 15K6068+598#24198#23600
15K → 20K51511+504#23600#23096
20K → HALF5012+38#23096#23058
HALF → 25K29315+278#23058#22780
25K → 30K225126+99#22780#22681
30K → 20M10853+55#22681#22626
20M → 21M9737+60#22626#22566
21M → 35K4534+11#22566#22555
35K → 23M9257+35#22555#22520
23M → 24M2997-68#22520#22588
24M → 40K5347+6#22588#22582
40K → 25.2M840-32#22582#22614
25.2M → FINISH3552-17#22614#22631
TOTALS2492708+1784
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing