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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Dairous Osei Bonsu

Bib: 30450 •M •Age: N/A

MA

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0:00
0:00
/ mi
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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
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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
34:29
3.11 mi
Rank: #28143
Start → 5K
34:29 | 11:06/mi
10K
1:09:32
6.21 mi
Rank: #28089 (+54)
5K → 10K
35:03 | 11:17/mi
15K
1:45:43
9.32 mi
Rank: #28117 (-28)
10K → 15K
36:11 | 11:39/mi
20K
2:27:28
12.43 mi
Rank: #28392 (-275)
15K → 20K
41:45 | 13:27/mi
HALF
2:35:56
13.11 mi
Rank: #28401 (-9)
20K → HALF
8:28 | 12:26/mi
25K
3:10:37
15.53 mi
Rank: #28516 (-115)
HALF → 25K
34:41 | 14:19/mi
30K
3:57:08
18.64 mi
Rank: #28615 (-99)
25K → 30K
46:31 | 14:59/mi
20M
4:18:32
20.00 mi
Rank: #28654 (-39)
30K → 20M
21:24 | 15:46/mi
21M
4:34:39
21.00 mi
Rank: #28667 (-13)
20M → 21M
16:07 | 16:07/mi
35K
4:47:55
21.75 mi
Rank: #28742 (-75)
21M → 35K
13:16 | 17:44/mi
23M
5:06:23
23.00 mi
Rank: #28740 (+2)
35K → 23M
18:28 | 14:46/mi
24M
5:19:53
24.00 mi
Rank: #28723 (+17)
23M → 24M
13:30 | 13:30/mi
40K
5:31:07
24.85 mi
Rank: #28698 (+25)
24M → 40K
11:14 | 13:09/mi
25.2M
5:36:00
25.20 mi
Rank: #28685 (+13)
40K → 25.2M
4:53 | 14:10/mi
FINISH
5:48:51
26.22 mi
Rank: #28677 (+8)
25.2M → FINISH
12:51 | 12:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:35:56
Pace11:54 /mi
2nd Half
Distance13.11 mi
Time3:12:55
Pace14:43 /mi
📊Positive Split: 23.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:5134:2911:0634:29
11:06
-
10K
6.21 mi12:34:541:09:3211:1235:03
11:17
+0:11
15K
9.32 mi13:11:051:45:4311:2136:11
11:39
+0:22
20K
12.43 mi13:52:502:27:2811:5241:45
13:27
+1:48
HALF
13.11 mi14:01:182:35:5611:548:28
12:26
-1:01
25K
15.53 mi14:35:593:10:3712:1734:41
14:19
+1:53
30K
18.64 mi15:22:303:57:0812:4446:31
14:59
+0:40
20M
20.00 mi15:43:544:18:3212:5621:24
15:46
+0:47
21M
21.00 mi16:00:014:34:3913:0516:07
16:07
+0:21
35K
21.75 mi16:13:174:47:5513:1513:16
17:44
+1:37
23M
23.00 mi16:31:455:06:2313:2018:28
14:46
-2:58
24M
24.00 mi16:45:155:19:5313:2013:30
13:30
-1:16
40K
24.85 mi16:56:295:31:0713:2011:14
13:09
-0:21
25.2M
25.20 mi17:01:225:36:0013:214:53
14:10
+1:01
FINISH
26.22 mi17:14:135:48:5113:1912:51
12:37
-1:33

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

11:06 /mi

Average Pace

13:19 /mi

Slowest Pace

17:44 /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

1:54:11

33% of race

Time at Steady Pace

1:58:54

34% of race

Time at Slower Pace

1:55:46

33% of race

Average Pace: 13:18 /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 mi11:59:5134:2911:0634:29
11:06
#28143
10K
6.21 mi12:34:541:09:3211:1235:03
11:17
#28089
15K
9.32 mi13:11:051:45:4311:2136:11
11:39
#28117
20K
12.43 mi13:52:502:27:2811:5241:45
13:27
#28392
HALF
13.11 mi14:01:182:35:5611:548:28
12:26
#28401
25K
15.53 mi14:35:593:10:3712:1734:41
14:19
#28516
30K
18.64 mi15:22:303:57:0812:4446:31
14:59
#28615
20M
20.00 mi15:43:544:18:3212:5621:24
15:46
#28654
21M
21.00 mi16:00:014:34:3913:0516:07
16:07
#28667
35K
21.75 mi16:13:174:47:5513:1513:16
17:44
#28742
23M
23.00 mi16:31:455:06:2313:2018:28
14:46
#28740
24M
24.00 mi16:45:155:19:5313:2013:30
13:30
#28723
40K
24.85 mi16:56:295:31:0713:2011:14
13:09
#28698
25.2M
25.20 mi17:01:225:36:0013:214:53
14:10
#28685
FINISH
26.22 mi17:14:135:48:5113:1912:51
12:37
#28677
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 mi28143160631606328101(Top 97%)16019(Top 98%)16019(Top 280%)
10K6.21 mi3.10 mi28089+5416047+1616047+1628031(Top 97%)16001(Top 98%)16001(Top 280%)
15K9.32 mi3.11 mi28117-2816052-516052-528101(Top 97%)16019(Top 98%)16019(Top 280%)
20K12.43 mi3.11 mi28392-27516136-8416136-8428775(Top 99%)16246(Top 99%)16246(Top 284%)
HALF13.11 mi0.68 mi28401-916141-516141-528497(Top 98%)16127(Top 99%)16127(Top 282%)
25K15.53 mi2.42 mi28516-11516170-2916170-2928780(Top 99%)16238(Top 99%)16238(Top 284%)
30K18.64 mi3.11 mi28615-9916199-2916199-2928774(Top 99%)16220(Top 99%)16220(Top 283%)
20M20.00 mi1.36 mi28654-3916211-1216211-1228790(Top 99%)16222(Top 99%)16222(Top 283%)
21M21.00 mi1.00 mi28667-1316216-516216-528640(Top 99%)16135(Top 99%)16135(Top 282%)
35K21.75 mi0.75 mi28742-7516236-2016236-2028964(Top 100%)16305(Top 100%)16305(Top 285%)
23M23.00 mi1.25 mi28740+216232+416232+428539(Top 98%)16074(Top 98%)16074(Top 281%)
24M24.00 mi1.00 mi28723+1716222+1016222+1028021(Top 97%)15800(Top 97%)15800(Top 276%)
40K24.85 mi0.85 mi28698+2516217+516217+527176(Top 94%)15364(Top 94%)15364(Top 268%)
25.2M25.20 mi0.35 mi28685+1316212+516212+527337(Top 94%)15439(Top 94%)15439(Top 270%)
FINISH26.22 mi1.02 mi28677+816206+616206+627966(Top 96%)15769(Top 97%)15769(Top 276%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21
+97ft-345ft

Overall

28101

Males

16019

M18-39

16019

5K→10K

3.1 - 6.2 mi

Top 97%
×5
+79ft-138ft

Overall

28031

Males

16001

M18-39

16001

10K→15K

6.2 - 9.3 mi

Top 97%
×3
+67ft-78ft

Overall

28101

Males

16019

M18-39

16019

15K→20K

9.3 - 12.4 mi

Top 99%
×5
+106ft-86ft

Overall

28775

Males

16246

M18-39

16246

20K→HALF

12.4 - 13.1 mi

Top 98%
×2
+19ft-37ft

Overall

28497

Males

16127

M18-39

16127

HALF→25K

13.1 - 15.5 mi

Top 99%
×4
+66ft-88ft

Overall

28780

Males

16238

M18-39

16238

25K→30K

15.5 - 18.6 mi

Top 99%
×9
+181ft-148ft

Overall

28774

Males

16220

M18-39

16220

30K→20M

18.6 - 20.0 mi

Top 99%
×5
+64ft-50ft

Overall

28790

Males

16222

M18-39

16222

20M→21M

20.0 - 21.0 mi

Top 99%
×8
+106ft-24ft

Overall

28640

Males

16135

M18-39

16135

21M→35K

21.0 - 21.8 mi

Top 100%
×7
+17ft-86ft

Overall

28964

Males

16305

M18-39

16305

35K→23M

21.8 - 23.0 mi

Top 98%
×5
+23ft-63ft

Overall

28539

Males

16074

M18-39

16074

23M→24M

23.0 - 24.0 mi

Top 97%
×6
+12ft-82ft

Overall

28021

Males

15800

M18-39

15800

24M→40K

24.0 - 24.9 mi

Top 94%
×1
+6ft-20ft

Overall

27176

Males

15364

M18-39

15364

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1
+13ft-16ft

Overall

27337

Males

15439

M18-39

15439

25.2M→FINISH

25.2 - 26.2 mi

Top 96%
×2
+22ft-21ft

Overall

27966

Males

15769

M18-39

15769

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
359
Passed By
810
Net Change
-534
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28143
5K → 10K13985+54#28143#28089
10K → 15K7098-28#28089#28117
15K → 20K8200-275#28117#28392
20K → HALF817-9#28392#28401
HALF → 25K17132-115#28401#28516
25K → 30K15114-99#28516#28615
30K → 20M241-39#28615#28654
20M → 21M1023-13#28654#28667
21M → 35K378-75#28667#28742
35K → 23M119+2#28742#28740
23M → 24M192+17#28740#28723
24M → 40K261+25#28723#28698
40K → 25.2M152+13#28698#28685
25.2M → FINISH168+8#28685#28677
TOTALS359810-534
📊

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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