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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Dariusz Kozuch

Bib: 5383 •M •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 14%
Gender (Male)
#0 / 16340
Top 23%
Masters (Masters Men)
#0 / 10617
Top 9%
Age Group (M50-54)
#0 / 1868
Top 6%
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
20:32
3.11 mi
Rank: #5057
Start → 5K
20:32 | 6:37/mi
10K
41:00
6.21 mi
Rank: #4962 (+95)
5K → 10K
20:28 | 6:36/mi
15K
1:01:30
9.32 mi
Rank: #4935 (+27)
10K → 15K
20:30 | 6:36/mi
20K
1:22:33
12.43 mi
Rank: #5101 (-166)
15K → 20K
21:03 | 6:47/mi
HALF
1:26:58
13.11 mi
Rank: #5062 (+39)
20K → HALF
4:25 | 6:29/mi
25K
1:42:59
15.53 mi
Rank: #4882 (+180)
HALF → 25K
16:01 | 6:37/mi
30K
2:03:54
18.64 mi
Rank: #4667 (+215)
25K → 30K
20:55 | 6:44/mi
20M
2:13:06
20.00 mi
Rank: #4565 (+102)
30K → 20M
9:12 | 6:47/mi
21M
2:20:08
21.00 mi
Rank: #4471 (+94)
20M → 21M
7:02 | 7:02/mi
35K
2:25:01
21.75 mi
Rank: #4418 (+53)
21M → 35K
4:53 | 6:32/mi
23M
2:33:13
23.00 mi
Rank: #4268 (+150)
35K → 23M
8:12 | 6:34/mi
24M
2:39:35
24.00 mi
Rank: #4137 (+131)
23M → 24M
6:22 | 6:22/mi
40K
2:45:14
24.85 mi
Rank: #4055 (+82)
24M → 40K
5:39 | 6:37/mi
25.2M
2:47:45
25.20 mi
Rank: #4034 (+21)
40K → 25.2M
2:31 | 7:18/mi
FINISH
2:54:14
26.22 mi
Rank: #3973 (+61)
25.2M → FINISH
6:29 | 6:22/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:26:58
Pace6:39 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:16
Pace6:40 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1420:326:3720:32
6:37
-
10K
6.21 mi10:44:4241:006:3620:28
6:36
-0:01
15K
9.32 mi11:05:121:01:306:3620:30
6:36
0:00
20K
12.43 mi11:26:151:22:336:3921:03
6:47
+0:11
HALF
13.11 mi11:30:401:26:586:394:25
6:29
-0:18
25K
15.53 mi11:46:411:42:596:3816:01
6:37
+0:08
30K
18.64 mi12:07:362:03:546:3920:55
6:44
+0:07
20M
20.00 mi12:16:482:13:066:409:12
6:47
+0:03
21M
21.00 mi12:23:502:20:086:417:02
7:02
+0:15
35K
21.75 mi12:28:432:25:016:414:53
6:32
-0:30
23M
23.00 mi12:36:552:33:136:408:12
6:34
+0:02
24M
24.00 mi12:43:172:39:356:396:22
6:22
-0:12
40K
24.85 mi12:48:562:45:146:395:39
6:37
+0:15
25.2M
25.20 mi12:51:272:47:456:402:31
7:18
+0:41
FINISH
26.22 mi12:57:562:54:146:406:29
6:22
-0:56

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

6:22 /mi

Average Pace

6:39 /mi

Slowest Pace

7:18 /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

2:44:41

95% of race

Time at Steady Pace

9:33

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:39 /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 mi10:24:1420:326:3720:32
6:37
#5057
10K
6.21 mi10:44:4241:006:3620:28
6:36
#4962
15K
9.32 mi11:05:121:01:306:3620:30
6:36
#4935
20K
12.43 mi11:26:151:22:336:3921:03
6:47
#5101
HALF
13.11 mi11:30:401:26:586:394:25
6:29
#5062
25K
15.53 mi11:46:411:42:596:3816:01
6:37
#4882
30K
18.64 mi12:07:362:03:546:3920:55
6:44
#4667
20M
20.00 mi12:16:482:13:066:409:12
6:47
#4565
21M
21.00 mi12:23:502:20:086:417:02
7:02
#4471
35K
21.75 mi12:28:432:25:016:414:53
6:32
#4418
23M
23.00 mi12:36:552:33:136:408:12
6:34
#4268
24M
24.00 mi12:43:172:39:356:396:22
6:22
#4137
40K
24.85 mi12:48:562:45:146:395:39
6:37
#4055
25.2M
25.20 mi12:51:272:47:456:402:31
7:18
#4034
FINISH
26.22 mi12:57:562:54:146:406:29
6:22
#3973
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 mi5057471547154913(Top 17%)4585(Top 28%)4585(Top 245%)
10K6.21 mi3.10 mi4962+954637+784637+784916(Top 17%)4589(Top 28%)4589(Top 246%)
15K9.32 mi3.11 mi4935+274613+244613+244913(Top 17%)4585(Top 28%)4585(Top 245%)
20K12.43 mi3.11 mi5101-1664750-1374750-1375921(Top 20%)5346(Top 33%)5346(Top 286%)
HALF13.11 mi0.68 mi5062+394717+334717+334230(Top 15%)3997(Top 24%)3997(Top 214%)
25K15.53 mi2.42 mi4882+1804559+1584559+1584154(Top 14%)3891(Top 24%)3891(Top 208%)
30K18.64 mi3.11 mi4667+2154367+1924367+1923891(Top 13%)3624(Top 22%)3624(Top 194%)
20M20.00 mi1.36 mi4565+1024271+964271+963933(Top 14%)3620(Top 22%)3620(Top 194%)
21M21.00 mi1.00 mi4471+944181+904181+903645(Top 13%)3332(Top 20%)3332(Top 178%)
35K21.75 mi0.75 mi4418+534131+504131+503732(Top 13%)3423(Top 21%)3423(Top 183%)
23M23.00 mi1.25 mi4268+1503992+1393992+1392683(Top 9%)2509(Top 15%)2509(Top 134%)
24M24.00 mi1.00 mi4137+1313875+1173875+1172514(Top 9%)2338(Top 14%)2338(Top 125%)
40K24.85 mi0.85 mi4055+823793+823793+823090(Top 11%)2800(Top 17%)2800(Top 150%)
25.2M25.20 mi0.35 mi4034+213773+203773+204054(Top 14%)3511(Top 21%)3511(Top 188%)
FINISH26.22 mi1.02 mi3973+613707+663707+663339(Top 12%)2953(Top 18%)2953(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21
+97ft-345ft

Overall

4913

Males

4585

M50-54

4585

5K→10K

3.1 - 6.2 mi

Top 17%
×5
+79ft-138ft

Overall

4916

Males

4589

M50-54

4589

10K→15K

6.2 - 9.3 mi

Top 17%
×3
+67ft-78ft

Overall

4913

Males

4585

M50-54

4585

15K→20K

9.3 - 12.4 mi

Top 20%
×5
+106ft-86ft

Overall

5921

Males

5346

M50-54

5346

20K→HALF

12.4 - 13.1 mi

Top 15%
×2
+19ft-37ft

Overall

4230

Males

3997

M50-54

3997

HALF→25K

13.1 - 15.5 mi

Top 14%
×4
+66ft-88ft

Overall

4154

Males

3891

M50-54

3891

25K→30K

15.5 - 18.6 mi

Top 13%
×9
+181ft-148ft

Overall

3891

Males

3624

M50-54

3624

30K→20M

18.6 - 20.0 mi

Top 14%
×5
+64ft-50ft

Overall

3933

Males

3620

M50-54

3620

20M→21M

20.0 - 21.0 mi

Top 13%
×8
+106ft-24ft

Overall

3645

Males

3332

M50-54

3332

21M→35K

21.0 - 21.8 mi

Top 13%
×7
+17ft-86ft

Overall

3732

Males

3423

M50-54

3423

35K→23M

21.8 - 23.0 mi

Top 9%
×5
+23ft-63ft

Overall

2683

Males

2509

M50-54

2509

23M→24M

23.0 - 24.0 mi

Top 9%
×6
+12ft-82ft

Overall

2514

Males

2338

M50-54

2338

24M→40K

24.0 - 24.9 mi

Top 11%
×1
+6ft-20ft

Overall

3090

Males

2800

M50-54

2800

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1
+13ft-16ft

Overall

4054

Males

3511

M50-54

3511

25.2M→FINISH

25.2 - 26.2 mi

Top 12%
×2
+22ft-21ft

Overall

3339

Males

2953

M50-54

2953

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1657*
Passed By
551
Net Change
+1084
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5057
5K → 10K223*128+95#5057#4962
10K → 15K11588+27#4962#4935
15K → 20K56200-166#4935#5101
20K → HALF423+39#5101#5062
HALF → 25K19515+180#5062#4882
25K → 30K238*23+215#4882#4667
30K → 20M11816+102#4667#4565
20M → 21M11218+94#4565#4471
21M → 35K6310+53#4471#4418
35K → 23M1555+150#4418#4268
23M → 24M1321+131#4268#4137
24M → 40K9816+82#4137#4055
40K → 25.2M287+21#4055#4034
25.2M → FINISH8221+61#4034#3973
TOTALS1657*551+1084

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

📊

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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