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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chun Kin Lau

Bib: 4708 β€’M β€’Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 6%
Gender (Male)
#0 / 16340
Top 11%
Age Group (M18-39)
#0 / 5723
Top 26%
Race Day Weather
51Β°/41Β°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
19:29
3.11 mi
Rank: #2496
Start β†’ 5K
19:29 | 6:17/mi
10K
38:39
6.21 mi
Rank: #2287 (+209)
5K β†’ 10K
19:10 | 6:11/mi
15K
57:47
9.32 mi
Rank: #2201 (+86)
10K β†’ 15K
19:08 | 6:10/mi
20K
1:17:06
12.43 mi
Rank: #2170 (+31)
15K β†’ 20K
19:19 | 6:14/mi
HALF
1:21:15
13.11 mi
Rank: #2158 (+12)
20K β†’ HALF
4:09 | 6:06/mi
25K
1:36:27
15.53 mi
Rank: #2135 (+23)
HALF β†’ 25K
15:12 | 6:17/mi
30K
1:56:00
18.64 mi
Rank: #2002 (+133)
25K β†’ 30K
19:33 | 6:18/mi
20M
2:04:42
20.00 mi
Rank: #1985 (+17)
30K β†’ 20M
8:42 | 6:25/mi
21M
2:11:12
21.00 mi
Rank: #1906 (+79)
20M β†’ 21M
6:30 | 6:30/mi
35K
2:15:52
21.75 mi
Rank: #1896 (+10)
21M β†’ 35K
4:40 | 6:15/mi
23M
2:24:06
23.00 mi
Rank: #1913 (-17)
35K β†’ 23M
8:14 | 6:35/mi
24M
2:30:27
24.00 mi
Rank: #1904 (+9)
23M β†’ 24M
6:21 | 6:21/mi
40K
2:35:54
24.85 mi
Rank: #1889 (+15)
24M β†’ 40K
5:27 | 6:23/mi
25.2M
2:38:16
25.20 mi
Rank: #1877 (+12)
40K β†’ 25.2M
2:22 | 6:52/mi
FINISH
2:44:24
26.22 mi
Rank: #1846 (+31)
25.2M β†’ FINISH
6:08 | 6:02/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:21:15
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:23:09
Pace6:21 /mi
πŸ“ŠPositive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2119:296:1719:29
6:17
-
10K
6.21 mi10:41:3138:396:1419:10
6:11
-0:06
15K
9.32 mi11:00:3957:476:1219:08
6:10
-0:01
20K
12.43 mi11:19:581:17:066:1319:19
6:14
+0:04
HALF
13.11 mi11:24:071:21:156:124:09
6:06
-0:08
25K
15.53 mi11:39:191:36:276:1315:12
6:17
+0:11
30K
18.64 mi11:58:521:56:006:1419:33
6:18
+0:01
20M
20.00 mi12:07:342:04:426:158:42
6:25
+0:07
21M
21.00 mi12:14:042:11:126:156:30
6:30
+0:05
35K
21.75 mi12:18:442:15:526:154:40
6:15
-0:15
23M
23.00 mi12:26:582:24:066:168:14
6:35
+0:20
24M
24.00 mi12:33:192:30:276:176:21
6:21
-0:14
40K
24.85 mi12:38:462:35:546:175:27
6:23
+0:02
25.2M
25.20 mi12:41:082:38:166:172:22
6:52
+0:29
FINISH
26.22 mi12:47:162:44:246:176:08
6:02
-0:50

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

6:02 /mi

Average Pace

6:16 /mi

Slowest Pace

6:52 /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

2:42:02

99% of race

Time at Steady Pace

2:22

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:16 /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 mi10:22:2119:296:1719:29
6:17
#2496
10K
6.21 mi10:41:3138:396:1419:10
6:11
#2287
15K
9.32 mi11:00:3957:476:1219:08
6:10
#2201
20K
12.43 mi11:19:581:17:066:1319:19
6:14
#2170
HALF
13.11 mi11:24:071:21:156:124:09
6:06
#2158
25K
15.53 mi11:39:191:36:276:1315:12
6:17
#2135
30K
18.64 mi11:58:521:56:006:1419:33
6:18
#2002
20M
20.00 mi12:07:342:04:426:158:42
6:25
#1985
21M
21.00 mi12:14:042:11:126:156:30
6:30
#1906
35K
21.75 mi12:18:442:15:526:154:40
6:15
#1896
23M
23.00 mi12:26:582:24:066:168:14
6:35
#1913
24M
24.00 mi12:33:192:30:276:176:21
6:21
#1904
40K
24.85 mi12:38:462:35:546:175:27
6:23
#1889
25.2M
25.20 mi12:41:082:38:166:172:22
6:52
#1877
FINISH
26.22 mi12:47:162:44:246:176:08
6:02
#1846
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 mi2496239623962079(Top 7%)2003(Top 12%)2003(Top 35%)
10K6.21 mi3.10 mi2287+2092205+1912205+1912105(Top 7%)2031(Top 12%)2031(Top 35%)
15K9.32 mi3.11 mi2201+862124+812124+812079(Top 7%)2003(Top 12%)2003(Top 35%)
20K12.43 mi3.11 mi2170+312093+312093+312107(Top 7%)2030(Top 12%)2030(Top 35%)
HALF13.11 mi0.68 mi2158+122081+122081+121886(Top 6%)1823(Top 11%)1823(Top 32%)
25K15.53 mi2.42 mi2135+232060+212060+212141(Top 7%)2061(Top 13%)2061(Top 36%)
30K18.64 mi3.11 mi2002+1331931+1291931+1291604(Top 6%)1541(Top 9%)1541(Top 27%)
20M20.00 mi1.36 mi1985+171914+171914+171966(Top 7%)1877(Top 11%)1877(Top 33%)
21M21.00 mi1.00 mi1906+791837+771837+771268(Top 4%)1220(Top 7%)1220(Top 21%)
35K21.75 mi0.75 mi1896+101827+101827+102167(Top 7%)2054(Top 13%)2054(Top 36%)
23M23.00 mi1.25 mi1913-171841-141841-142772(Top 10%)2577(Top 16%)2577(Top 45%)
24M24.00 mi1.00 mi1904+91832+91832+92394(Top 8%)2226(Top 14%)2226(Top 39%)
40K24.85 mi0.85 mi1889+151818+141818+142008(Top 7%)1876(Top 11%)1876(Top 33%)
25.2M25.20 mi0.35 mi1877+121807+111807+112052(Top 7%)1900(Top 12%)1900(Top 33%)
FINISH26.22 mi1.02 mi1846+311772+351772+351689(Top 6%)1578(Top 10%)1578(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
Γ—21
+97ft-345ft

Overall

2079

Males

2003

M18-39

2003

5K→10K

3.1 - 6.2 mi

Top 7%
Γ—5
+79ft-138ft

Overall

2105

Males

2031

M18-39

2031

10K→15K

6.2 - 9.3 mi

Top 7%
Γ—3
+67ft-78ft

Overall

2079

Males

2003

M18-39

2003

15K→20K

9.3 - 12.4 mi

Top 7%
Γ—5
+106ft-86ft

Overall

2107

Males

2030

M18-39

2030

20K→HALF

12.4 - 13.1 mi

Top 6%
Γ—2
+19ft-37ft

Overall

1886

Males

1823

M18-39

1823

HALF→25K

13.1 - 15.5 mi

Top 7%
Γ—4
+66ft-88ft

Overall

2141

Males

2061

M18-39

2061

25K→30K

15.5 - 18.6 mi

Top 6%
Γ—9
+181ft-148ft

Overall

1604

Males

1541

M18-39

1541

30K→20M

18.6 - 20.0 mi

Top 7%
Γ—5
+64ft-50ft

Overall

1966

Males

1877

M18-39

1877

20M→21M

20.0 - 21.0 mi

Top 4%
Γ—8
+106ft-24ft

Overall

1268

Males

1220

M18-39

1220

21M→35K

21.0 - 21.8 mi

Top 7%
Γ—7
+17ft-86ft

Overall

2167

Males

2054

M18-39

2054

35K→23M

21.8 - 23.0 mi

Top 10%
Γ—5
+23ft-63ft

Overall

2772

Males

2577

M18-39

2577

23M→24M

23.0 - 24.0 mi

Top 8%
Γ—6
+12ft-82ft

Overall

2394

Males

2226

M18-39

2226

24M→40K

24.0 - 24.9 mi

Top 7%
Γ—1
+6ft-20ft

Overall

2008

Males

1876

M18-39

1876

40K→25.2M

24.9 - 25.2 mi

Top 7%
Γ—1
+13ft-16ft

Overall

2052

Males

1900

M18-39

1900

25.2M→FINISH

25.2 - 26.2 mi

Top 6%
Γ—2
+22ft-21ft

Overall

1689

Males

1578

M18-39

1578

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
933*
Passed By
283
Net Change
+650
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#2496
5K β†’ 10K234*25+209#2496#2287
10K β†’ 15K11226+86#2287#2201
15K β†’ 20K6433+31#2201#2170
20K β†’ HALF153+12#2170#2158
HALF β†’ 25K5431+23#2158#2135
25K β†’ 30K14916+133#2135#2002
30K β†’ 20M3720+17#2002#1985
20M β†’ 21M834+79#1985#1906
21M β†’ 35K2111+10#1906#1896
35K β†’ 23M3047-17#1896#1913
23M β†’ 24M3829+9#1913#1904
24M β†’ 40K249+15#1904#1889
40K β†’ 25.2M219+12#1889#1877
25.2M β†’ FINISH5120+31#1877#1846
TOTALS933*283+650

* 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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