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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Mike Kazmierczak

Bib: 30781 β€’M β€’Age: N/A

RI

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 36%
Gender (Male)
#0 / 16340
Top 48%
Age Group (M18-39)
#0 / 5723
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
22:42
3.11 mi
Rank: #11085
Start β†’ 5K
22:42 | 7:19/mi
10K
45:09
6.21 mi
Rank: #10782 (+303)
5K β†’ 10K
22:27 | 7:14/mi
15K
1:07:39
9.32 mi
Rank: #10664 (+118)
10K β†’ 15K
22:30 | 7:15/mi
20K
1:30:25
12.43 mi
Rank: #10555 (+109)
15K β†’ 20K
22:46 | 7:20/mi
HALF
1:35:22
13.11 mi
Rank: #10557 (-2)
20K β†’ HALF
4:57 | 7:16/mi
25K
1:53:14
15.53 mi
Rank: #10487 (+70)
HALF β†’ 25K
17:52 | 7:23/mi
30K
2:17:02
18.64 mi
Rank: #10529 (-42)
25K β†’ 30K
23:48 | 7:40/mi
20M
2:27:24
20.00 mi
Rank: #10479 (+50)
30K β†’ 20M
10:22 | 7:38/mi
21M
2:35:29
21.00 mi
Rank: #10441 (+38)
20M β†’ 21M
8:05 | 8:05/mi
35K
2:41:08
21.75 mi
Rank: #10459 (-18)
21M β†’ 35K
5:39 | 7:34/mi
23M
2:50:54
23.00 mi
Rank: #10456 (+3)
35K β†’ 23M
9:46 | 7:49/mi
24M
2:58:08
24.00 mi
Rank: #10308 (+148)
23M β†’ 24M
7:14 | 7:14/mi
40K
3:04:43
24.85 mi
Rank: #10292 (+16)
24M β†’ 40K
6:35 | 7:42/mi
25.2M
3:07:39
25.20 mi
Rank: #10302 (-10)
40K β†’ 25.2M
2:56 | 8:31/mi
FINISH
3:15:22
26.22 mi
Rank: #10347 (-45)
25.2M β†’ FINISH
7:43 | 7:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:35:22
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:40:00
Pace7:38 /mi
πŸ“ŠPositive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2822:427:1922:42
7:19
-
10K
6.21 mi12:09:5545:097:1622:27
7:14
-0:05
15K
9.32 mi12:32:251:07:397:1622:30
7:15
+0:01
20K
12.43 mi12:55:111:30:257:1722:46
7:20
+0:05
HALF
13.11 mi13:00:081:35:227:174:57
7:16
-0:04
25K
15.53 mi13:18:001:53:147:1817:52
7:23
+0:07
30K
18.64 mi13:41:482:17:027:2223:48
7:40
+0:17
20M
20.00 mi13:52:102:27:247:2310:22
7:38
-0:02
21M
21.00 mi14:00:152:35:297:258:05
8:05
+0:27
35K
21.75 mi14:05:542:41:087:255:39
7:34
-0:31
23M
23.00 mi14:15:402:50:547:269:46
7:49
+0:15
24M
24.00 mi14:22:542:58:087:267:14
7:14
-0:35
40K
24.85 mi14:29:293:04:437:266:35
7:42
+0:28
25.2M
25.20 mi14:32:253:07:397:272:56
8:31
+0:49
FINISH
26.22 mi14:40:083:15:227:287:43
7:35
-0:56

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

7:14 /mi

Average Pace

7:27 /mi

Slowest Pace

8:31 /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

3:04:21

94% of race

Time at Steady Pace

11:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi11:47:2822:427:1922:42
7:19
#11085
10K
6.21 mi12:09:5545:097:1622:27
7:14
#10782
15K
9.32 mi12:32:251:07:397:1622:30
7:15
#10664
20K
12.43 mi12:55:111:30:257:1722:46
7:20
#10555
HALF
13.11 mi13:00:081:35:227:174:57
7:16
#10557
25K
15.53 mi13:18:001:53:147:1817:52
7:23
#10487
30K
18.64 mi13:41:482:17:027:2223:48
7:40
#10529
20M
20.00 mi13:52:102:27:247:2310:22
7:38
#10479
21M
21.00 mi14:00:152:35:297:258:05
8:05
#10441
35K
21.75 mi14:05:542:41:087:255:39
7:34
#10459
23M
23.00 mi14:15:402:50:547:269:46
7:49
#10456
24M
24.00 mi14:22:542:58:087:267:14
7:14
#10308
40K
24.85 mi14:29:293:04:437:266:35
7:42
#10292
25.2M
25.20 mi14:32:253:07:397:272:56
8:31
#10302
FINISH
26.22 mi14:40:083:15:227:287:43
7:35
#10347
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 mi110858637863710479(Top 36%)8236(Top 50%)8236(Top 144%)
10K6.21 mi3.10 mi10782+3038453+1848453+18410488(Top 36%)8300(Top 51%)8300(Top 145%)
15K9.32 mi3.11 mi10664+1188370+838370+8310479(Top 36%)8236(Top 50%)8236(Top 144%)
20K12.43 mi3.11 mi10555+1098277+938277+9310428(Top 36%)8130(Top 50%)8130(Top 142%)
HALF13.11 mi0.68 mi10557-28279-28279-210791(Top 37%)8373(Top 51%)8373(Top 146%)
25K15.53 mi2.42 mi10487+708220+598220+5910276(Top 35%)7971(Top 49%)7971(Top 139%)
30K18.64 mi3.11 mi10529-428184+368184+3610921(Top 38%)8164(Top 50%)8164(Top 143%)
20M20.00 mi1.36 mi10479+508139+458139+4510057(Top 35%)7607(Top 47%)7607(Top 133%)
21M21.00 mi1.00 mi10441+388094+458094+4510432(Top 36%)7698(Top 47%)7698(Top 135%)
35K21.75 mi0.75 mi10459-188083+118083+1111209(Top 39%)8055(Top 49%)8055(Top 141%)
23M23.00 mi1.25 mi10456+38044+398044+3911034(Top 38%)7867(Top 48%)7867(Top 137%)
24M24.00 mi1.00 mi10308+1487947+977947+978087(Top 28%)6304(Top 39%)6304(Top 110%)
40K24.85 mi0.85 mi10292+167923+247923+2410277(Top 35%)7355(Top 45%)7355(Top 129%)
25.2M25.20 mi0.35 mi10302-107913+107913+1011579(Top 40%)7874(Top 48%)7874(Top 138%)
FINISH26.22 mi1.02 mi10347-457917-47917-411956(Top 41%)8073(Top 49%)8073(Top 141%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
Γ—21
+97ft-345ft

Overall

10479

Males

8236

M18-39

8236

5K→10K

3.1 - 6.2 mi

Top 36%
Γ—5
+79ft-138ft

Overall

10488

Males

8300

M18-39

8300

10K→15K

6.2 - 9.3 mi

Top 36%
Γ—3
+67ft-78ft

Overall

10479

Males

8236

M18-39

8236

15K→20K

9.3 - 12.4 mi

Top 36%
Γ—5
+106ft-86ft

Overall

10428

Males

8130

M18-39

8130

20K→HALF

12.4 - 13.1 mi

Top 37%
Γ—2
+19ft-37ft

Overall

10791

Males

8373

M18-39

8373

HALF→25K

13.1 - 15.5 mi

Top 35%
Γ—4
+66ft-88ft

Overall

10276

Males

7971

M18-39

7971

25K→30K

15.5 - 18.6 mi

Top 38%
Γ—9
+181ft-148ft

Overall

10921

Males

8164

M18-39

8164

30K→20M

18.6 - 20.0 mi

Top 35%
Γ—5
+64ft-50ft

Overall

10057

Males

7607

M18-39

7607

20M→21M

20.0 - 21.0 mi

Top 36%
Γ—8
+106ft-24ft

Overall

10432

Males

7698

M18-39

7698

21M→35K

21.0 - 21.8 mi

Top 39%
Γ—7
+17ft-86ft

Overall

11209

Males

8055

M18-39

8055

35K→23M

21.8 - 23.0 mi

Top 38%
Γ—5
+23ft-63ft

Overall

11034

Males

7867

M18-39

7867

23M→24M

23.0 - 24.0 mi

Top 28%
Γ—6
+12ft-82ft

Overall

8087

Males

6304

M18-39

6304

24M→40K

24.0 - 24.9 mi

Top 35%
Γ—1
+6ft-20ft

Overall

10277

Males

7355

M18-39

7355

40K→25.2M

24.9 - 25.2 mi

Top 40%
Γ—1
+13ft-16ft

Overall

11579

Males

7874

M18-39

7874

25.2M→FINISH

25.2 - 26.2 mi

Top 41%
Γ—2
+22ft-21ft

Overall

11956

Males

8073

M18-39

8073

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1935*
Passed By
1175
Net Change
+738
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#11085
5K β†’ 10K429*126+303#11085#10782
10K β†’ 15K216*98+118#10782#10664
15K β†’ 20K209*100+109#10664#10555
20K β†’ HALF3234-2#10555#10557
HALF β†’ 25K15686+70#10557#10487
25K β†’ 30K180200-42#10487#10529
30K β†’ 20M11363+50#10529#10479
20M β†’ 21M11476+38#10479#10441
21M β†’ 35K4765-18#10441#10459
35K β†’ 23M114111+3#10459#10456
23M β†’ 24M15911+148#10456#10308
24M β†’ 40K7862+16#10308#10292
40K β†’ 25.2M2737-10#10292#10302
25.2M β†’ FINISH61106-45#10302#10347
TOTALS1935*1175+738

* Includes athletes who did not complete a segment (DNF/DNQ).

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

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OTQ

Olympic Trials Qualifying analysis available

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