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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Carl Koudelka

Bib: 14665 •M •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M50-54)
#0 / 1868
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
24:06
3.11 mi
Rank: #15058
Start → 5K
24:06 | 7:46/mi
10K
48:45
6.21 mi
Rank: #15866 (-808)
5K → 10K
24:39 | 7:57/mi
15K
1:14:33
9.32 mi
Rank: #17042 (-1176)
10K → 15K
25:48 | 8:19/mi
20K
1:40:58
12.43 mi
Rank: #17679 (-637)
15K → 20K
26:25 | 8:31/mi
HALF
1:47:26
13.11 mi
Rank: #18151 (-472)
20K → HALF
6:28 | 9:30/mi
25K
2:11:02
15.53 mi
Rank: #19354 (-1203)
HALF → 25K
23:36 | 9:44/mi
30K
2:44:45
18.64 mi
Rank: #21000 (-1646)
25K → 30K
33:43 | 10:52/mi
20M
2:59:01
20.00 mi
Rank: #21326 (-326)
30K → 20M
14:16 | 10:31/mi
21M
3:10:35
21.00 mi
Rank: #21612 (-286)
20M → 21M
11:34 | 11:34/mi
35K
3:18:23
21.75 mi
Rank: #21744 (-132)
21M → 35K
7:48 | 10:26/mi
23M
3:32:20
23.00 mi
Rank: #22056 (-312)
35K → 23M
13:57 | 11:09/mi
24M
3:42:59
24.00 mi
Rank: #22187 (-131)
23M → 24M
10:39 | 10:39/mi
40K
3:52:35
24.85 mi
Rank: #22327 (-140)
24M → 40K
9:36 | 11:14/mi
25.2M
3:56:42
25.20 mi
Rank: #22369 (-42)
40K → 25.2M
4:07 | 11:57/mi
FINISH
4:07:58
26.22 mi
Rank: #22569 (-200)
25.2M → FINISH
11:16 | 11:04/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:26
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time2:20:32
Pace10:44 /mi
📊Positive Split: 30.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5124:067:4624:06
7:46
-
10K
6.21 mi11:19:3048:457:5124:39
7:57
+0:11
15K
9.32 mi11:45:181:14:338:0025:48
8:19
+0:22
20K
12.43 mi12:11:431:40:588:0826:25
8:31
+0:12
HALF
13.11 mi12:18:111:47:268:126:28
9:30
+0:59
25K
15.53 mi12:41:472:11:028:2723:36
9:44
+0:14
30K
18.64 mi13:15:302:44:458:5133:43
10:52
+1:08
20M
20.00 mi13:29:462:59:018:5814:16
10:31
-0:21
21M
21.00 mi13:41:203:10:359:0511:34
11:34
+1:03
35K
21.75 mi13:49:083:18:239:087:48
10:26
-1:08
23M
23.00 mi14:03:053:32:209:1413:57
11:09
+0:43
24M
24.00 mi14:13:443:42:599:1810:39
10:39
-0:30
40K
24.85 mi14:23:203:52:359:229:36
11:14
+0:35
25.2M
25.20 mi14:27:273:56:429:244:07
11:57
+0:43
FINISH
26.22 mi14:38:434:07:589:2811:16
11:04
-0:53

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

7:46 /mi

Average Pace

9:28 /mi

Slowest Pace

11:57 /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

2:11:02

53% of race

Time at Steady Pace

1:31:39

37% of race

Time at Slower Pace

25:17

10% of race

Average Pace: 9:27 /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 mi10:54:5124:067:4624:06
7:46
#15058
10K
6.21 mi11:19:3048:457:5124:39
7:57
#15866
15K
9.32 mi11:45:181:14:338:0025:48
8:19
#17042
20K
12.43 mi12:11:431:40:588:0826:25
8:31
#17679
HALF
13.11 mi12:18:111:47:268:126:28
9:30
#18151
25K
15.53 mi12:41:472:11:028:2723:36
9:44
#19354
30K
18.64 mi13:15:302:44:458:5133:43
10:52
#21000
20M
20.00 mi13:29:462:59:018:5814:16
10:31
#21326
21M
21.00 mi13:41:203:10:359:0511:34
11:34
#21612
35K
21.75 mi13:49:083:18:239:087:48
10:26
#21744
23M
23.00 mi14:03:053:32:209:1413:57
11:09
#22056
24M
24.00 mi14:13:443:42:599:1810:39
10:39
#22187
40K
24.85 mi14:23:203:52:359:229:36
11:14
#22327
25.2M
25.20 mi14:27:273:56:429:244:07
11:57
#22369
FINISH
26.22 mi14:38:434:07:589:2811:16
11:04
#22569
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15058102791027919005(Top 65%)11883(Top 73%)11883(Top 636%)
10K6.21 mi3.10 mi15866-80810558-27910558-27916735(Top 58%)10913(Top 67%)10913(Top 584%)
15K9.32 mi3.11 mi17042-117611020-46211020-46219005(Top 65%)11883(Top 73%)11883(Top 636%)
20K12.43 mi3.11 mi17679-63711289-26911289-26919324(Top 67%)11993(Top 73%)11993(Top 642%)
HALF13.11 mi0.68 mi18151-47211499-21011499-21024324(Top 84%)14363(Top 88%)14363(Top 769%)
25K15.53 mi2.42 mi19354-120312004-50512004-50523638(Top 81%)14011(Top 86%)14011(Top 750%)
30K18.64 mi3.11 mi21000-164612729-72512729-72525053(Top 86%)14561(Top 89%)14561(Top 779%)
20M20.00 mi1.36 mi21326-32612878-14912878-14923853(Top 82%)13933(Top 85%)13933(Top 746%)
21M21.00 mi1.00 mi21612-28613010-13213010-13224298(Top 84%)14060(Top 86%)14060(Top 753%)
35K21.75 mi0.75 mi21744-13213062-5213062-5224146(Top 83%)13983(Top 86%)13983(Top 749%)
23M23.00 mi1.25 mi22056-31213188-12613188-12624786(Top 85%)14226(Top 87%)14226(Top 762%)
24M24.00 mi1.00 mi22187-13113247-5913247-5924379(Top 84%)14008(Top 86%)14008(Top 750%)
40K24.85 mi0.85 mi22327-14013299-5213299-5224680(Top 85%)14111(Top 86%)14111(Top 755%)
25.2M25.20 mi0.35 mi22369-4213313-1413313-1424307(Top 84%)13923(Top 85%)13923(Top 745%)
FINISH26.22 mi1.02 mi22569-20013390-7713390-7726204(Top 90%)14862(Top 91%)14862(Top 796%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

19005

Males

11883

M50-54

11883

5K→10K

3.1 - 6.2 mi

Top 58%
×5
+79ft-138ft

Overall

16735

Males

10913

M50-54

10913

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

19005

Males

11883

M50-54

11883

15K→20K

9.3 - 12.4 mi

Top 67%
×5
+106ft-86ft

Overall

19324

Males

11993

M50-54

11993

20K→HALF

12.4 - 13.1 mi

Top 84%
×2
+19ft-37ft

Overall

24324

Males

14363

M50-54

14363

HALF→25K

13.1 - 15.5 mi

Top 81%
×4
+66ft-88ft

Overall

23638

Males

14011

M50-54

14011

25K→30K

15.5 - 18.6 mi

Top 86%
×9
+181ft-148ft

Overall

25053

Males

14561

M50-54

14561

30K→20M

18.6 - 20.0 mi

Top 82%
×5
+64ft-50ft

Overall

23853

Males

13933

M50-54

13933

20M→21M

20.0 - 21.0 mi

Top 84%
×8
+106ft-24ft

Overall

24298

Males

14060

M50-54

14060

21M→35K

21.0 - 21.8 mi

Top 83%
×7
+17ft-86ft

Overall

24146

Males

13983

M50-54

13983

35K→23M

21.8 - 23.0 mi

Top 85%
×5
+23ft-63ft

Overall

24786

Males

14226

M50-54

14226

23M→24M

23.0 - 24.0 mi

Top 84%
×6
+12ft-82ft

Overall

24379

Males

14008

M50-54

14008

24M→40K

24.0 - 24.9 mi

Top 85%
×1
+6ft-20ft

Overall

24680

Males

14111

M50-54

14111

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1
+13ft-16ft

Overall

24307

Males

13923

M50-54

13923

25.2M→FINISH

25.2 - 26.2 mi

Top 90%
×2
+22ft-21ft

Overall

26204

Males

14862

M50-54

14862

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
330
Passed By
2514
Net Change
-7511
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15058
5K → 10K79200-808#15058#15866
10K → 15K23200-1176#15866#17042
15K → 20K44200-637#17042#17679
20K → HALF2200-472#17679#18151
HALF → 25K11200-1203#18151#19354
25K → 30K15200-1646#19354#21000
30K → 20M33200-326#21000#21326
20M → 21M26200-286#21326#21612
21M → 35K16148-132#21612#21744
35K → 23M23200-312#21744#22056
23M → 24M21152-131#22056#22187
24M → 40K21161-140#22187#22327
40K → 25.2M1153-42#22327#22369
25.2M → FINISH5200-200#22369#22569
TOTALS3302514-7511
📊

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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Activity Data

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