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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chi Yin Lai

Bib: 8465 •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

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
19:39
3.11 mi
Rank: #2887
Start → 5K
19:39 | 6:20/mi
10K
39:42
6.21 mi
Rank: #3411 (-524)
5K → 10K
20:03 | 6:28/mi
15K
1:00:05
9.32 mi
Rank: #3786 (-375)
10K → 15K
20:23 | 6:34/mi
20K
1:20:43
12.43 mi
Rank: #4018 (-232)
15K → 20K
20:38 | 6:39/mi
HALF
1:25:13
13.11 mi
Rank: #4075 (-57)
20K → HALF
4:30 | 6:37/mi
25K
1:41:14
15.53 mi
Rank: #4049 (+26)
HALF → 25K
16:01 | 6:37/mi
30K
2:02:20
18.64 mi
Rank: #4072 (-23)
25K → 30K
21:06 | 6:48/mi
20M
2:11:40
20.00 mi
Rank: #4059 (+13)
30K → 20M
9:20 | 6:53/mi
21M
2:18:59
21.00 mi
Rank: #4087 (-28)
20M → 21M
7:19 | 7:19/mi
35K
2:23:54
21.75 mi
Rank: #4054 (+33)
21M → 35K
4:55 | 6:35/mi
23M
2:32:31
23.00 mi
Rank: #4050 (+4)
35K → 23M
8:37 | 6:54/mi
24M
2:39:10
24.00 mi
Rank: #4002 (+48)
23M → 24M
6:39 | 6:39/mi
40K
2:45:00
24.85 mi
Rank: #3982 (+20)
24M → 40K
5:50 | 6:50/mi
25.2M
2:47:34
25.20 mi
Rank: #3992 (-10)
40K → 25.2M
2:34 | 7:27/mi
FINISH
2:54:30
26.22 mi
Rank: #4053 (-61)
25.2M → FINISH
6:56 | 6:49/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:25:13
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:29:17
Pace6:49 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:34:4919:396:2019:39
6:20
-
10K
6.21 mi10:54:5239:426:2420:03
6:28
+0:08
15K
9.32 mi11:15:151:00:056:2720:23
6:34
+0:06
20K
12.43 mi11:35:531:20:436:3020:38
6:39
+0:05
HALF
13.11 mi11:40:231:25:136:314:30
6:37
-0:02
25K
15.53 mi11:56:241:41:146:3216:01
6:37
0:00
30K
18.64 mi12:17:302:02:206:3421:06
6:48
+0:11
20M
20.00 mi12:26:502:11:406:369:20
6:53
+0:05
21M
21.00 mi12:34:092:18:596:387:19
7:19
+0:26
35K
21.75 mi12:39:042:23:546:384:55
6:35
-0:44
23M
23.00 mi12:47:412:32:316:388:37
6:54
+0:19
24M
24.00 mi12:54:202:39:106:386:39
6:39
-0:15
40K
24.85 mi13:00:102:45:006:395:50
6:50
+0:11
25.2M
25.20 mi13:02:442:47:346:392:34
7:27
+0:37
FINISH
26.22 mi13:09:402:54:306:406:56
6:49
-0:38

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

6:20 /mi

Average Pace

6:40 /mi

Slowest Pace

7:27 /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

2:44:37

94% of race

Time at Steady Pace

9:53

6% 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 mi10:34:4919:396:2019:39
6:20
#2887
10K
6.21 mi10:54:5239:426:2420:03
6:28
#3411
15K
9.32 mi11:15:151:00:056:2720:23
6:34
#3786
20K
12.43 mi11:35:531:20:436:3020:38
6:39
#4018
HALF
13.11 mi11:40:231:25:136:314:30
6:37
#4075
25K
15.53 mi11:56:241:41:146:3216:01
6:37
#4049
30K
18.64 mi12:17:302:02:206:3421:06
6:48
#4072
20M
20.00 mi12:26:502:11:406:369:20
6:53
#4059
21M
21.00 mi12:34:092:18:596:387:19
7:19
#4087
35K
21.75 mi12:39:042:23:546:384:55
6:35
#4054
23M
23.00 mi12:47:412:32:316:388:37
6:54
#4050
24M
24.00 mi12:54:202:39:106:386:39
6:39
#4002
40K
24.85 mi13:00:102:45:006:395:50
6:50
#3982
25.2M
25.20 mi13:02:442:47:346:392:34
7:27
#3992
FINISH
26.22 mi13:09:402:54:306:406:56
6:49
#4053
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 mi2887276327634645(Top 16%)4357(Top 27%)4357(Top 233%)
10K6.21 mi3.10 mi3411-5243265-5023265-5023867(Top 13%)3674(Top 22%)3674(Top 197%)
15K9.32 mi3.11 mi3786-3753606-3413606-3414645(Top 16%)4357(Top 27%)4357(Top 233%)
20K12.43 mi3.11 mi4018-2323819-2133819-2134711(Top 16%)4406(Top 27%)4406(Top 236%)
HALF13.11 mi0.68 mi4075-573869-503869-505197(Top 18%)4774(Top 29%)4774(Top 256%)
25K15.53 mi2.42 mi4049+263839+303839+304156(Top 14%)3893(Top 24%)3893(Top 208%)
30K18.64 mi3.11 mi4072-233843-43843-44305(Top 15%)3972(Top 24%)3972(Top 213%)
20M20.00 mi1.36 mi4059+133829+143829+144614(Top 16%)4167(Top 26%)4167(Top 223%)
21M21.00 mi1.00 mi4087-283841-123841-125324(Top 18%)4645(Top 28%)4645(Top 249%)
35K21.75 mi0.75 mi4054+333809+323809+324027(Top 14%)3658(Top 22%)3658(Top 196%)
23M23.00 mi1.25 mi4050+43797+123797+124629(Top 16%)4101(Top 25%)4101(Top 220%)
24M24.00 mi1.00 mi4002+483749+483749+484058(Top 14%)3608(Top 22%)3608(Top 193%)
40K24.85 mi0.85 mi3982+203730+193730+194330(Top 15%)3771(Top 23%)3771(Top 202%)
25.2M25.20 mi0.35 mi3992-103734-43734-44811(Top 17%)4072(Top 25%)4072(Top 218%)
FINISH26.22 mi1.02 mi4053-613772-383772-386096(Top 21%)4917(Top 30%)4917(Top 263%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21
+97ft-345ft

Overall

4645

Males

4357

M50-54

4357

5K→10K

3.1 - 6.2 mi

Top 13%
×5
+79ft-138ft

Overall

3867

Males

3674

M50-54

3674

10K→15K

6.2 - 9.3 mi

Top 16%
×3
+67ft-78ft

Overall

4645

Males

4357

M50-54

4357

15K→20K

9.3 - 12.4 mi

Top 16%
×5
+106ft-86ft

Overall

4711

Males

4406

M50-54

4406

20K→HALF

12.4 - 13.1 mi

Top 18%
×2
+19ft-37ft

Overall

5197

Males

4774

M50-54

4774

HALF→25K

13.1 - 15.5 mi

Top 14%
×4
+66ft-88ft

Overall

4156

Males

3893

M50-54

3893

25K→30K

15.5 - 18.6 mi

Top 15%
×9
+181ft-148ft

Overall

4305

Males

3972

M50-54

3972

30K→20M

18.6 - 20.0 mi

Top 16%
×5
+64ft-50ft

Overall

4614

Males

4167

M50-54

4167

20M→21M

20.0 - 21.0 mi

Top 18%
×8
+106ft-24ft

Overall

5324

Males

4645

M50-54

4645

21M→35K

21.0 - 21.8 mi

Top 14%
×7
+17ft-86ft

Overall

4027

Males

3658

M50-54

3658

35K→23M

21.8 - 23.0 mi

Top 16%
×5
+23ft-63ft

Overall

4629

Males

4101

M50-54

4101

23M→24M

23.0 - 24.0 mi

Top 14%
×6
+12ft-82ft

Overall

4058

Males

3608

M50-54

3608

24M→40K

24.0 - 24.9 mi

Top 15%
×1
+6ft-20ft

Overall

4330

Males

3771

M50-54

3771

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1
+13ft-16ft

Overall

4811

Males

4072

M50-54

4072

25.2M→FINISH

25.2 - 26.2 mi

Top 21%
×2
+22ft-21ft

Overall

6096

Males

4917

M50-54

4917

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
663
Passed By
1224
Net Change
-1166
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2887
5K → 10K29200-524#2887#3411
10K → 15K16200-375#3411#3786
15K → 20K29200-232#3786#4018
20K → HALF360-57#4018#4075
HALF → 25K8458+26#4075#4049
25K → 30K94117-23#4049#4072
30K → 20M6451+13#4072#4059
20M → 21M4371-28#4059#4087
21M → 35K5825+33#4087#4054
35K → 23M6561+4#4054#4050
23M → 24M7022+48#4050#4002
24M → 40K5636+20#4002#3982
40K → 25.2M1929-10#3982#3992
25.2M → FINISH3394-61#3992#4053
TOTALS6631224-1166
📊

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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