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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chang Zuo

Bib: 11474 •M •Age: N/A

NC

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 (M45-49)
#0 / 2413
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
23:13
3.11 mi
Rank: #12543
Start → 5K
23:13 | 7:29/mi
10K
46:31
6.21 mi
Rank: #12711 (-168)
5K → 10K
23:18 | 7:30/mi
15K
1:10:04
9.32 mi
Rank: #12954 (-243)
10K → 15K
23:33 | 7:35/mi
20K
1:34:07
12.43 mi
Rank: #13219 (-265)
15K → 20K
24:03 | 7:45/mi
HALF
1:40:36
13.11 mi
Rank: #14081 (-862)
20K → HALF
6:29 | 9:31/mi
25K
2:00:26
15.53 mi
Rank: #14532 (-451)
HALF → 25K
19:50 | 8:11/mi
30K
2:29:05
18.64 mi
Rank: #15971 (-1439)
25K → 30K
28:39 | 9:14/mi
20M
2:41:51
20.00 mi
Rank: #16412 (-441)
30K → 20M
12:46 | 9:24/mi
21M
2:52:12
21.00 mi
Rank: #16798 (-386)
20M → 21M
10:21 | 10:21/mi
35K
3:02:49
21.75 mi
Rank: #18066 (-1268)
21M → 35K
10:37 | 14:12/mi
23M
3:19:06
23.00 mi
Rank: #19360 (-1294)
35K → 23M
16:17 | 13:01/mi
24M
3:28:06
24.00 mi
Rank: #19365 (-5)
23M → 24M
9:00 | 9:00/mi
40K
3:35:18
24.85 mi
Rank: #19211 (+154)
24M → 40K
7:12 | 8:26/mi
25.2M
3:38:46
25.20 mi
Rank: #19227 (-16)
40K → 25.2M
3:28 | 10:04/mi
FINISH
3:47:26
26.22 mi
Rank: #19199 (+28)
25.2M → FINISH
8:40 | 8:31/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
Time1:40:36
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time2:06:50
Pace9:41 /mi
📊Positive Split: 26.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:41:1423:137:2923:13
7:29
-
10K
6.21 mi11:04:3246:317:3023:18
7:30
+0:01
15K
9.32 mi11:28:051:10:047:3223:33
7:35
+0:05
20K
12.43 mi11:52:081:34:077:3524:03
7:45
+0:10
HALF
13.11 mi11:58:371:40:367:416:29
9:31
+1:46
25K
15.53 mi12:18:272:00:267:4619:50
8:11
-1:20
30K
18.64 mi12:47:062:29:058:0028:39
9:14
+1:03
20M
20.00 mi12:59:522:41:518:0612:46
9:24
+0:10
21M
21.00 mi13:10:132:52:128:1310:21
10:21
+0:57
35K
21.75 mi13:20:503:02:498:2510:37
14:12
+3:51
23M
23.00 mi13:37:073:19:068:4016:17
13:01
-1:11
24M
24.00 mi13:46:073:28:068:419:00
9:00
-4:01
40K
24.85 mi13:53:193:35:188:407:12
8:26
-0:34
25.2M
25.20 mi13:56:473:38:468:413:28
10:04
+1:38
FINISH
26.22 mi14:05:273:47:268:418:40
8:31
-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

7:29 /mi

Average Pace

8:41 /mi

Slowest Pace

14:12 /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

1:34:07

41% of race

Time at Steady Pace

1:32:36

41% of race

Time at Slower Pace

40:43

18% of race

Average Pace: 8:40 /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 mi10:41:1423:137:2923:13
7:29
#12543
10K
6.21 mi11:04:3246:317:3023:18
7:30
#12711
15K
9.32 mi11:28:051:10:047:3223:33
7:35
#12954
20K
12.43 mi11:52:081:34:077:3524:03
7:45
#13219
HALF
13.11 mi11:58:371:40:367:416:29
9:31
#14081
25K
15.53 mi12:18:272:00:267:4619:50
8:11
#14532
30K
18.64 mi12:47:062:29:058:0028:39
9:14
#15971
20M
20.00 mi12:59:522:41:518:0612:46
9:24
#16412
21M
21.00 mi13:10:132:52:128:1310:21
10:21
#16798
35K
21.75 mi13:20:503:02:498:2510:37
14:12
#18066
23M
23.00 mi13:37:073:19:068:4016:17
13:01
#19360
24M
24.00 mi13:46:073:28:068:419:00
9:00
#19365
40K
24.85 mi13:53:193:35:188:407:12
8:26
#19211
25.2M
25.20 mi13:56:473:38:468:413:28
10:04
#19227
FINISH
26.22 mi14:05:273:47:268:418:40
8:31
#19199
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi125439280928013497(Top 47%)9583(Top 59%)9583(Top 397%)
10K6.21 mi3.10 mi12711-1689322-429322-4212926(Top 45%)9376(Top 57%)9376(Top 389%)
15K9.32 mi3.11 mi12954-2439393-719393-7113497(Top 47%)9583(Top 59%)9583(Top 397%)
20K12.43 mi3.11 mi13219-2659468-759468-7514070(Top 48%)9763(Top 60%)9763(Top 405%)
HALF13.11 mi0.68 mi14081-8629832-3649832-36424377(Top 84%)14386(Top 88%)14386(Top 596%)
25K15.53 mi2.42 mi14532-4519998-1669998-16616665(Top 57%)10795(Top 66%)10795(Top 447%)
30K18.64 mi3.11 mi15971-143910516-51810516-51820609(Top 71%)12467(Top 76%)12467(Top 517%)
20M20.00 mi1.36 mi16412-44110683-16710683-16720660(Top 71%)12412(Top 76%)12412(Top 514%)
21M21.00 mi1.00 mi16798-38610845-16210845-16221525(Top 74%)12794(Top 78%)12794(Top 530%)
35K21.75 mi0.75 mi18066-126811359-51411359-51428433(Top 98%)16021(Top 98%)16021(Top 664%)
23M23.00 mi1.25 mi19360-129411904-54511904-54527331(Top 94%)15487(Top 95%)15487(Top 642%)
24M24.00 mi1.00 mi19365-511886+1811886+1819448(Top 67%)11624(Top 71%)11624(Top 482%)
40K24.85 mi0.85 mi19211+15411800+8611800+8615182(Top 52%)9601(Top 59%)9601(Top 398%)
25.2M25.20 mi0.35 mi19227-1611805-511805-519561(Top 67%)11637(Top 71%)11637(Top 482%)
FINISH26.22 mi1.02 mi19199+2811781+2411781+2418185(Top 63%)10980(Top 67%)10980(Top 455%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21
+97ft-345ft

Overall

13497

Males

9583

M45-49

9583

5K→10K

3.1 - 6.2 mi

Top 45%
×5
+79ft-138ft

Overall

12926

Males

9376

M45-49

9376

10K→15K

6.2 - 9.3 mi

Top 47%
×3
+67ft-78ft

Overall

13497

Males

9583

M45-49

9583

15K→20K

9.3 - 12.4 mi

Top 48%
×5
+106ft-86ft

Overall

14070

Males

9763

M45-49

9763

20K→HALF

12.4 - 13.1 mi

Top 84%
×2
+19ft-37ft

Overall

24377

Males

14386

M45-49

14386

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16665

Males

10795

M45-49

10795

25K→30K

15.5 - 18.6 mi

Top 71%
×9
+181ft-148ft

Overall

20609

Males

12467

M45-49

12467

30K→20M

18.6 - 20.0 mi

Top 71%
×5
+64ft-50ft

Overall

20660

Males

12412

M45-49

12412

20M→21M

20.0 - 21.0 mi

Top 74%
×8
+106ft-24ft

Overall

21525

Males

12794

M45-49

12794

21M→35K

21.0 - 21.8 mi

Top 98%
×7
+17ft-86ft

Overall

28433

Males

16021

M45-49

16021

35K→23M

21.8 - 23.0 mi

Top 94%
×5
+23ft-63ft

Overall

27331

Males

15487

M45-49

15487

23M→24M

23.0 - 24.0 mi

Top 67%
×6
+12ft-82ft

Overall

19448

Males

11624

M45-49

11624

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

15182

Males

9601

M45-49

9601

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1
+13ft-16ft

Overall

19561

Males

11637

M45-49

11637

25.2M→FINISH

25.2 - 26.2 mi

Top 63%
×2
+22ft-21ft

Overall

18185

Males

10980

M45-49

10980

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
832
Passed By
2158
Net Change
-6656
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12543
5K → 10K193200-168#12543#12711
10K → 15K108200-243#12711#12954
15K → 20K79200-265#12954#13219
20K → HALF1200-862#13219#14081
HALF → 25K51200-451#14081#14532
25K → 30K34200-1439#14532#15971
30K → 20M18200-441#15971#16412
20M → 21M23200-386#16412#16798
21M → 35K2200-1268#16798#18066
35K → 23M4200-1294#18066#19360
23M → 24M6469-5#19360#19365
24M → 40K1606+154#19365#19211
40K → 25.2M2440-16#19211#19227
25.2M → FINISH7143+28#19227#19199
TOTALS8322158-6656
📊

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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