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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chao Zhou

Bib: 4057 β€’M β€’Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 9%
Gender (Male)
#0 / 16340
Top 15%
Age Group (M18-39)
#0 / 5723
Top 35%
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
19:54
3.11 mi
Rank: #3483
Start β†’ 5K
19:54 | 6:25/mi
10K
39:45
6.21 mi
Rank: #3454 (+29)
5K β†’ 10K
19:51 | 6:24/mi
15K
59:39
9.32 mi
Rank: #3486 (-32)
10K β†’ 15K
19:54 | 6:25/mi
20K
1:19:34
12.43 mi
Rank: #3371 (+115)
15K β†’ 20K
19:55 | 6:25/mi
HALF
1:23:50
13.11 mi
Rank: #3329 (+42)
20K β†’ HALF
4:16 | 6:16/mi
25K
1:39:25
15.53 mi
Rank: #3248 (+81)
HALF β†’ 25K
15:35 | 6:26/mi
30K
1:59:41
18.64 mi
Rank: #3107 (+141)
25K β†’ 30K
20:16 | 6:32/mi
20M
2:08:33
20.00 mi
Rank: #3033 (+74)
30K β†’ 20M
8:52 | 6:32/mi
21M
2:15:28
21.00 mi
Rank: #3008 (+25)
20M β†’ 21M
6:55 | 6:55/mi
35K
2:20:08
21.75 mi
Rank: #2964 (+44)
21M β†’ 35K
4:40 | 6:15/mi
23M
2:27:58
23.00 mi
Rank: #2826 (+138)
35K β†’ 23M
7:50 | 6:16/mi
24M
2:34:06
24.00 mi
Rank: #2728 (+98)
23M β†’ 24M
6:08 | 6:08/mi
40K
2:39:23
24.85 mi
Rank: #2613 (+115)
24M β†’ 40K
5:17 | 6:11/mi
25.2M
2:41:39
25.20 mi
Rank: #2572 (+41)
40K β†’ 25.2M
2:16 | 6:35/mi
FINISH
2:47:45
26.22 mi
Rank: #2500 (+72)
25.2M β†’ FINISH
6:06 | 6:00/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Halfβš–οΈ Balanced
via HALF
Distance13.11 mi
Time1:23:50
Pace6:24 /mi
2nd Halfβš–οΈ Balanced
Distance13.11 mi
Time1:23:55
Pace6:25 /mi
πŸ“ŠEven Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2219:546:2519:54
6:25
-
10K
6.21 mi10:41:1339:456:2419:51
6:24
-0:01
15K
9.32 mi11:01:0759:396:2419:54
6:25
+0:01
20K
12.43 mi11:21:021:19:346:2519:55
6:25
0:00
HALF
13.11 mi11:25:181:23:506:244:16
6:16
-0:09
25K
15.53 mi11:40:531:39:256:2415:35
6:26
+0:10
30K
18.64 mi12:01:091:59:416:2620:16
6:32
+0:06
20M
20.00 mi12:10:012:08:336:268:52
6:32
0:00
21M
21.00 mi12:16:562:15:286:286:55
6:55
+0:23
35K
21.75 mi12:21:362:20:086:274:40
6:15
-0:40
23M
23.00 mi12:29:262:27:586:277:50
6:16
+0:01
24M
24.00 mi12:35:342:34:066:266:08
6:08
-0:08
40K
24.85 mi12:40:512:39:236:255:17
6:11
+0:03
25.2M
25.20 mi12:43:072:41:396:252:16
6:35
+0:24
FINISH
26.22 mi12:49:132:47:456:256:06
6:00
-0:35

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

6:00 /mi

Average Pace

6:24 /mi

Slowest Pace

6:55 /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

2:40:50

96% of race

Time at Steady Pace

6:55

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:24 /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 mi10:21:2219:546:2519:54
6:25
#3483
10K
6.21 mi10:41:1339:456:2419:51
6:24
#3454
15K
9.32 mi11:01:0759:396:2419:54
6:25
#3486
20K
12.43 mi11:21:021:19:346:2519:55
6:25
#3371
HALF
13.11 mi11:25:181:23:506:244:16
6:16
#3329
25K
15.53 mi11:40:531:39:256:2415:35
6:26
#3248
30K
18.64 mi12:01:091:59:416:2620:16
6:32
#3107
20M
20.00 mi12:10:012:08:336:268:52
6:32
#3033
21M
21.00 mi12:16:562:15:286:286:55
6:55
#3008
35K
21.75 mi12:21:362:20:086:274:40
6:15
#2964
23M
23.00 mi12:29:262:27:586:277:50
6:16
#2826
24M
24.00 mi12:35:342:34:066:266:08
6:08
#2728
40K
24.85 mi12:40:512:39:236:255:17
6:11
#2613
25.2M
25.20 mi12:43:072:41:396:252:16
6:35
#2572
FINISH
26.22 mi12:49:132:47:456:256:06
6:00
#2500
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 mi3483331733173524(Top 12%)3368(Top 21%)3368(Top 59%)
10K6.21 mi3.10 mi3454+293301+163301+163456(Top 12%)3300(Top 20%)3300(Top 58%)
15K9.32 mi3.11 mi3486-323327-263327-263524(Top 12%)3368(Top 21%)3368(Top 59%)
20K12.43 mi3.11 mi3371+1153228+993228+993193(Top 11%)3065(Top 19%)3065(Top 54%)
HALF13.11 mi0.68 mi3329+423188+403188+402805(Top 10%)2699(Top 17%)2699(Top 47%)
25K15.53 mi2.42 mi3248+813111+773111+773030(Top 10%)2907(Top 18%)2907(Top 51%)
30K18.64 mi3.11 mi3107+1412978+1332978+1332684(Top 9%)2566(Top 16%)2566(Top 45%)
20M20.00 mi1.36 mi3033+742907+712907+712556(Top 9%)2420(Top 15%)2420(Top 42%)
21M21.00 mi1.00 mi3008+252878+292878+292962(Top 10%)2757(Top 17%)2757(Top 48%)
35K21.75 mi0.75 mi2964+442838+402838+402202(Top 8%)2089(Top 13%)2089(Top 37%)
23M23.00 mi1.25 mi2826+1382710+1282710+1281419(Top 5%)1359(Top 8%)1359(Top 24%)
24M24.00 mi1.00 mi2728+982616+942616+941526(Top 5%)1449(Top 9%)1449(Top 25%)
40K24.85 mi0.85 mi2613+1152507+1092507+1091300(Top 4%)1237(Top 8%)1237(Top 22%)
25.2M25.20 mi0.35 mi2572+412468+392468+391139(Top 4%)1080(Top 7%)1080(Top 19%)
FINISH26.22 mi1.02 mi2500+722398+702398+701593(Top 5%)1498(Top 9%)1498(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
Γ—21
+97ft-345ft

Overall

3524

Males

3368

M18-39

3368

5K→10K

3.1 - 6.2 mi

Top 12%
Γ—5
+79ft-138ft

Overall

3456

Males

3300

M18-39

3300

10K→15K

6.2 - 9.3 mi

Top 12%
Γ—3
+67ft-78ft

Overall

3524

Males

3368

M18-39

3368

15K→20K

9.3 - 12.4 mi

Top 11%
Γ—5
+106ft-86ft

Overall

3193

Males

3065

M18-39

3065

20K→HALF

12.4 - 13.1 mi

Top 10%
Γ—2
+19ft-37ft

Overall

2805

Males

2699

M18-39

2699

HALF→25K

13.1 - 15.5 mi

Top 10%
Γ—4
+66ft-88ft

Overall

3030

Males

2907

M18-39

2907

25K→30K

15.5 - 18.6 mi

Top 9%
Γ—9
+181ft-148ft

Overall

2684

Males

2566

M18-39

2566

30K→20M

18.6 - 20.0 mi

Top 9%
Γ—5
+64ft-50ft

Overall

2556

Males

2420

M18-39

2420

20M→21M

20.0 - 21.0 mi

Top 10%
Γ—8
+106ft-24ft

Overall

2962

Males

2757

M18-39

2757

21M→35K

21.0 - 21.8 mi

Top 8%
Γ—7
+17ft-86ft

Overall

2202

Males

2089

M18-39

2089

35K→23M

21.8 - 23.0 mi

Top 5%
Γ—5
+23ft-63ft

Overall

1419

Males

1359

M18-39

1359

23M→24M

23.0 - 24.0 mi

Top 5%
Γ—6
+12ft-82ft

Overall

1526

Males

1449

M18-39

1449

24M→40K

24.0 - 24.9 mi

Top 4%
Γ—1
+6ft-20ft

Overall

1300

Males

1237

M18-39

1237

40K→25.2M

24.9 - 25.2 mi

Top 4%
Γ—1
+13ft-16ft

Overall

1139

Males

1080

M18-39

1080

25.2M→FINISH

25.2 - 26.2 mi

Top 5%
Γ—2
+22ft-21ft

Overall

1593

Males

1498

M18-39

1498

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1349
Passed By
366
Net Change
+983
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#3483
5K β†’ 10K162133+29#3483#3454
10K β†’ 15K77109-32#3454#3486
15K β†’ 20K13823+115#3486#3371
20K β†’ HALF453+42#3371#3329
HALF β†’ 25K9817+81#3329#3248
25K β†’ 30K16524+141#3248#3107
30K β†’ 20M8612+74#3107#3033
20M β†’ 21M5328+25#3033#3008
21M β†’ 35K506+44#3008#2964
35K β†’ 23M1424+138#2964#2826
23M β†’ 24M1002+98#2826#2728
24M β†’ 40K1150+115#2728#2613
40K β†’ 25.2M410+41#2613#2572
25.2M β†’ FINISH775+72#2572#2500
TOTALS1349366+983
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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