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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Karl Cosgrove

Bib: 3244 β€’M β€’Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 2%
Gender (Male)
#0 / 16340
Top 3%
Age Group (M18-39)
#0 / 5723
Top 9%
Race Day Weather
51Β°/41Β°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
18:08
3.11 mi
Rank: #714
Start β†’ 5K
18:08 | 5:51/mi
10K
36:06
6.21 mi
Rank: #682 (+32)
5K β†’ 10K
17:58 | 5:47/mi
15K
54:11
9.32 mi
Rank: #687 (-5)
10K β†’ 15K
18:05 | 5:50/mi
20K
1:12:29
12.43 mi
Rank: #705 (-18)
15K β†’ 20K
18:18 | 5:54/mi
HALF
1:16:25
13.11 mi
Rank: #699 (+6)
20K β†’ HALF
3:56 | 5:47/mi
25K
1:30:39
15.53 mi
Rank: #685 (+14)
HALF β†’ 25K
14:14 | 5:53/mi
30K
1:49:20
18.64 mi
Rank: #669 (+16)
25K β†’ 30K
18:41 | 6:01/mi
20M
1:57:25
20.00 mi
Rank: #653 (+16)
30K β†’ 20M
8:05 | 5:58/mi
21M
2:03:37
21.00 mi
Rank: #629 (+24)
20M β†’ 21M
6:12 | 6:12/mi
35K
2:07:58
21.75 mi
Rank: #617 (+12)
21M β†’ 35K
4:21 | 5:49/mi
23M
2:15:26
23.00 mi
Rank: #598 (+19)
35K β†’ 23M
7:28 | 5:58/mi
24M
2:21:17
24.00 mi
Rank: #592 (+6)
23M β†’ 24M
5:51 | 5:51/mi
40K
2:26:22
24.85 mi
Rank: #590 (+2)
24M β†’ 40K
5:05 | 5:57/mi
25.2M
2:28:34
25.20 mi
Rank: #588 (+2)
40K β†’ 25.2M
2:12 | 6:23/mi
FINISH
2:34:31
26.22 mi
Rank: #584 (+4)
25.2M β†’ FINISH
5:57 | 5:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:16:25
Pace5:50 /mi
2nd Half
Distance13.11 mi
Time1:18:06
Pace5:58 /mi
πŸ“ŠPositive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0118:085:5118:08
5:51
-
10K
6.21 mi10:36:5936:065:4917:58
5:47
-0:04
15K
9.32 mi10:55:0454:115:4918:05
5:50
+0:03
20K
12.43 mi11:13:221:12:295:5018:18
5:54
+0:04
HALF
13.11 mi11:17:181:16:255:503:56
5:47
-0:07
25K
15.53 mi11:31:321:30:395:5114:14
5:53
+0:06
30K
18.64 mi11:50:131:49:205:5218:41
6:01
+0:08
20M
20.00 mi11:58:181:57:255:538:05
5:58
-0:03
21M
21.00 mi12:04:302:03:375:546:12
6:12
+0:14
35K
21.75 mi12:08:512:07:585:544:21
5:49
-0:23
23M
23.00 mi12:16:192:15:265:547:28
5:58
+0:09
24M
24.00 mi12:22:102:21:175:545:51
5:51
-0:07
40K
24.85 mi12:27:152:26:225:545:05
5:57
+0:06
25.2M
25.20 mi12:29:272:28:345:542:12
6:23
+0:26
FINISH
26.22 mi12:35:242:34:315:545:57
5:51
-0:32

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

5:47 /mi

Average Pace

5:54 /mi

Slowest Pace

6:23 /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

2:32:19

99% of race

Time at Steady Pace

2:12

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:54 /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 mi10:19:0118:085:5118:08
5:51
#714
10K
6.21 mi10:36:5936:065:4917:58
5:47
#682
15K
9.32 mi10:55:0454:115:4918:05
5:50
#687
20K
12.43 mi11:13:221:12:295:5018:18
5:54
#705
HALF
13.11 mi11:17:181:16:255:503:56
5:47
#699
25K
15.53 mi11:31:321:30:395:5114:14
5:53
#685
30K
18.64 mi11:50:131:49:205:5218:41
6:01
#669
20M
20.00 mi11:58:181:57:255:538:05
5:58
#653
21M
21.00 mi12:04:302:03:375:546:12
6:12
#629
35K
21.75 mi12:08:512:07:585:544:21
5:49
#617
23M
23.00 mi12:16:192:15:265:547:28
5:58
#598
24M
24.00 mi12:22:102:21:175:545:51
5:51
#592
40K
24.85 mi12:27:152:26:225:545:05
5:57
#590
25.2M
25.20 mi12:29:272:28:345:542:12
6:23
#588
FINISH
26.22 mi12:35:242:34:315:545:57
5:51
#584
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 mi714676676710(Top 2%)678(Top 4%)678(Top 12%)
10K6.21 mi3.10 mi682+32647+29647+29657(Top 2%)630(Top 4%)630(Top 11%)
15K9.32 mi3.11 mi687-5653-6653-6710(Top 2%)678(Top 4%)678(Top 12%)
20K12.43 mi3.11 mi705-18671-18671-18788(Top 3%)762(Top 5%)762(Top 13%)
HALF13.11 mi0.68 mi699+6668+3668+3696(Top 2%)672(Top 4%)672(Top 12%)
25K15.53 mi2.42 mi685+14654+14654+14667(Top 2%)644(Top 4%)644(Top 11%)
30K18.64 mi3.11 mi669+16639+15639+15721(Top 2%)694(Top 4%)694(Top 12%)
20M20.00 mi1.36 mi653+16624+15624+15555(Top 2%)531(Top 3%)531(Top 9%)
21M21.00 mi1.00 mi629+24602+22602+22544(Top 2%)520(Top 3%)520(Top 9%)
35K21.75 mi0.75 mi617+12590+12590+12700(Top 2%)667(Top 4%)667(Top 12%)
23M23.00 mi1.25 mi598+19571+19571+19624(Top 2%)596(Top 4%)596(Top 10%)
24M24.00 mi1.00 mi592+6565+6565+6693(Top 2%)661(Top 4%)661(Top 12%)
40K24.85 mi0.85 mi590+2563+2563+2664(Top 2%)633(Top 4%)633(Top 11%)
25.2M25.20 mi0.35 mi588+2561+2561+2692(Top 2%)663(Top 4%)663(Top 12%)
FINISH26.22 mi1.02 mi584+4558+3558+31119(Top 4%)1061(Top 6%)1061(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
Γ—21
+97ft-345ft

Overall

710

Males

678

M18-39

678

5K→10K

3.1 - 6.2 mi

Top 2%
Γ—5
+79ft-138ft

Overall

657

Males

630

M18-39

630

10K→15K

6.2 - 9.3 mi

Top 2%
Γ—3
+67ft-78ft

Overall

710

Males

678

M18-39

678

15K→20K

9.3 - 12.4 mi

Top 3%
Γ—5
+106ft-86ft

Overall

788

Males

762

M18-39

762

20K→HALF

12.4 - 13.1 mi

Top 2%
Γ—2
+19ft-37ft

Overall

696

Males

672

M18-39

672

HALF→25K

13.1 - 15.5 mi

Top 2%
Γ—4
+66ft-88ft

Overall

667

Males

644

M18-39

644

25K→30K

15.5 - 18.6 mi

Top 2%
Γ—9
+181ft-148ft

Overall

721

Males

694

M18-39

694

30K→20M

18.6 - 20.0 mi

Top 2%
Γ—5
+64ft-50ft

Overall

555

Males

531

M18-39

531

20M→21M

20.0 - 21.0 mi

Top 2%
Γ—8
+106ft-24ft

Overall

544

Males

520

M18-39

520

21M→35K

21.0 - 21.8 mi

Top 2%
Γ—7
+17ft-86ft

Overall

700

Males

667

M18-39

667

35K→23M

21.8 - 23.0 mi

Top 2%
Γ—5
+23ft-63ft

Overall

624

Males

596

M18-39

596

23M→24M

23.0 - 24.0 mi

Top 2%
Γ—6
+12ft-82ft

Overall

693

Males

661

M18-39

661

24M→40K

24.0 - 24.9 mi

Top 2%
Γ—1
+6ft-20ft

Overall

664

Males

633

M18-39

633

40K→25.2M

24.9 - 25.2 mi

Top 2%
Γ—1
+13ft-16ft

Overall

692

Males

663

M18-39

663

25.2M→FINISH

25.2 - 26.2 mi

Top 4%
Γ—2
+22ft-21ft

Overall

1119

Males

1061

M18-39

1061

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
287
Passed By
157
Net Change
+130
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#714
5K β†’ 10K6129+32#714#682
10K β†’ 15K2126-5#682#687
15K β†’ 20K1937-18#687#705
20K β†’ HALF126+6#705#699
HALF β†’ 25K228+14#699#685
25K β†’ 30K3115+16#685#669
30K β†’ 20M215+16#669#653
20M β†’ 21M240+24#653#629
21M β†’ 35K142+12#629#617
35K β†’ 23M245+19#617#598
23M β†’ 24M126+6#598#592
24M β†’ 40K75+2#592#590
40K β†’ 25.2M42+2#590#588
25.2M β†’ FINISH1511+4#588#584
TOTALS287157+130
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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