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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Sze Lai Lai

Bib: 20139 •F •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 38%
Masters (Masters Women)
#0 / 6862
Top 22%
Age Group (F40-44)
#0 / 1737
Top 45%
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
24:20
3.11 mi
Rank: #15686
Start → 5K
24:20 | 7:50/mi
10K
48:31
6.21 mi
Rank: #15556 (+130)
5K → 10K
24:11 | 7:48/mi
15K
1:12:51
9.32 mi
Rank: #15551 (+5)
10K → 15K
24:20 | 7:50/mi
20K
1:37:29
12.43 mi
Rank: #15507 (+44)
15K → 20K
24:38 | 7:56/mi
HALF
1:42:49
13.11 mi
Rank: #15514 (-7)
20K → HALF
5:20 | 7:50/mi
25K
2:02:28
15.53 mi
Rank: #15632 (-118)
HALF → 25K
19:39 | 8:07/mi
30K
2:28:16
18.64 mi
Rank: #15638 (-6)
25K → 30K
25:48 | 8:19/mi
20M
2:39:18
20.00 mi
Rank: #15471 (+167)
30K → 20M
11:02 | 8:08/mi
21M
2:47:52
21.00 mi
Rank: #15314 (+157)
20M → 21M
8:34 | 8:34/mi
35K
2:53:44
21.75 mi
Rank: #15231 (+83)
21M → 35K
5:52 | 7:51/mi
23M
3:03:50
23.00 mi
Rank: #15069 (+162)
35K → 23M
10:06 | 8:05/mi
24M
3:11:46
24.00 mi
Rank: #14963 (+106)
23M → 24M
7:56 | 7:56/mi
40K
3:18:25
24.85 mi
Rank: #14793 (+170)
24M → 40K
6:39 | 7:47/mi
25.2M
3:21:19
25.20 mi
Rank: #14746 (+47)
40K → 25.2M
2:54 | 8:25/mi
FINISH
3:28:54
26.22 mi
Rank: #14605 (+141)
25.2M → FINISH
7:35 | 7:27/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:42:49
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:46:05
Pace8:06 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:3124:207:5024:20
7:50
-
10K
6.21 mi11:50:4248:317:4924:11
7:48
-0:02
15K
9.32 mi12:15:021:12:517:4924:20
7:50
+0:02
20K
12.43 mi12:39:401:37:297:5124:38
7:56
+0:06
HALF
13.11 mi12:45:001:42:497:515:20
7:50
-0:06
25K
15.53 mi13:04:392:02:287:5419:39
8:07
+0:17
30K
18.64 mi13:30:272:28:167:5825:48
8:19
+0:12
20M
20.00 mi13:41:292:39:187:5811:02
8:08
-0:11
21M
21.00 mi13:50:032:47:528:008:34
8:34
+0:26
35K
21.75 mi13:55:552:53:448:005:52
7:51
-0:43
23M
23.00 mi14:06:013:03:508:0010:06
8:05
+0:14
24M
24.00 mi14:13:573:11:468:007:56
7:56
-0:09
40K
24.85 mi14:20:363:18:257:596:39
7:47
-0:09
25.2M
25.20 mi14:23:303:21:198:002:54
8:25
+0:38
FINISH
26.22 mi14:31:053:28:547:597:35
7:27
-0:58

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

7:27 /mi

Average Pace

7:58 /mi

Slowest Pace

8:34 /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

2:51:38

82% of race

Time at Steady Pace

37:16

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:58 /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 mi11:26:3124:207:5024:20
7:50
#15686
10K
6.21 mi11:50:4248:317:4924:11
7:48
#15556
15K
9.32 mi12:15:021:12:517:4924:20
7:50
#15551
20K
12.43 mi12:39:401:37:297:5124:38
7:56
#15507
HALF
13.11 mi12:45:001:42:497:515:20
7:50
#15514
25K
15.53 mi13:04:392:02:287:5419:39
8:07
#15632
30K
18.64 mi13:30:272:28:167:5825:48
8:19
#15638
20M
20.00 mi13:41:292:39:187:5811:02
8:08
#15471
21M
21.00 mi13:50:032:47:528:008:34
8:34
#15314
35K
21.75 mi13:55:552:53:448:005:52
7:51
#15231
23M
23.00 mi14:06:013:03:508:0010:06
8:05
#15069
24M
24.00 mi14:13:573:11:468:007:56
7:56
#14963
40K
24.85 mi14:20:363:18:257:596:39
7:47
#14793
25.2M
25.20 mi14:23:303:21:198:002:54
8:25
#14746
FINISH
26.22 mi14:31:053:28:547:597:35
7:27
#14605
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi156865110511015631(Top 54%)5129(Top 41%)5129(Top 295%)
10K6.21 mi3.10 mi15556+1305056+545056+5415504(Top 53%)5012(Top 40%)5012(Top 289%)
15K9.32 mi3.11 mi15551+55069-135069-1315631(Top 54%)5129(Top 41%)5129(Top 295%)
20K12.43 mi3.11 mi15507+445055+145055+1415589(Top 54%)5131(Top 41%)5131(Top 295%)
HALF13.11 mi0.68 mi15514-75062-75062-715778(Top 54%)5195(Top 41%)5195(Top 299%)
25K15.53 mi2.42 mi15632-1185147-855147-8516141(Top 56%)5501(Top 44%)5501(Top 317%)
30K18.64 mi3.11 mi15638-65186-395186-3915650(Top 54%)5332(Top 42%)5332(Top 307%)
20M20.00 mi1.36 mi15471+1675100+865100+8613712(Top 47%)4353(Top 35%)4353(Top 251%)
21M21.00 mi1.00 mi15314+1575045+555045+5513576(Top 47%)4368(Top 35%)4368(Top 251%)
35K21.75 mi0.75 mi15231+835004+415004+4113423(Top 46%)4334(Top 34%)4334(Top 250%)
23M23.00 mi1.25 mi15069+1624943+614943+6112978(Top 45%)4143(Top 33%)4143(Top 239%)
24M24.00 mi1.00 mi14963+1064892+514892+5113316(Top 46%)4423(Top 35%)4423(Top 255%)
40K24.85 mi0.85 mi14793+1704818+744818+7410924(Top 38%)3237(Top 26%)3237(Top 186%)
25.2M25.20 mi0.35 mi14746+474794+244794+2411162(Top 38%)3453(Top 27%)3453(Top 199%)
FINISH26.22 mi1.02 mi14605+1414731+634731+6311014(Top 38%)3367(Top 27%)3367(Top 194%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21
+97ft-345ft

Overall

15631

Females

5129

F40-44

5129

5K→10K

3.1 - 6.2 mi

Top 53%
×5
+79ft-138ft

Overall

15504

Females

5012

F40-44

5012

10K→15K

6.2 - 9.3 mi

Top 54%
×3
+67ft-78ft

Overall

15631

Females

5129

F40-44

5129

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15589

Females

5131

F40-44

5131

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15778

Females

5195

F40-44

5195

HALF→25K

13.1 - 15.5 mi

Top 56%
×4
+66ft-88ft

Overall

16141

Females

5501

F40-44

5501

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15650

Females

5332

F40-44

5332

30K→20M

18.6 - 20.0 mi

Top 47%
×5
+64ft-50ft

Overall

13712

Females

4353

F40-44

4353

20M→21M

20.0 - 21.0 mi

Top 47%
×8
+106ft-24ft

Overall

13576

Females

4368

F40-44

4368

21M→35K

21.0 - 21.8 mi

Top 46%
×7
+17ft-86ft

Overall

13423

Females

4334

F40-44

4334

35K→23M

21.8 - 23.0 mi

Top 45%
×5
+23ft-63ft

Overall

12978

Females

4143

F40-44

4143

23M→24M

23.0 - 24.0 mi

Top 46%
×6
+12ft-82ft

Overall

13316

Females

4423

F40-44

4423

24M→40K

24.0 - 24.9 mi

Top 38%
×1
+6ft-20ft

Overall

10924

Females

3237

F40-44

3237

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1
+13ft-16ft

Overall

11162

Females

3453

F40-44

3453

25.2M→FINISH

25.2 - 26.2 mi

Top 38%
×2
+22ft-21ft

Overall

11014

Females

3367

F40-44

3367

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2230*
Passed By
1121
Net Change
+1081
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15686
5K → 10K330*200+130#15686#15556
10K → 15K203*198+5#15556#15551
15K → 20K188144+44#15551#15507
20K → HALF3340-7#15507#15514
HALF → 25K105200-118#15514#15632
25K → 30K199200-6#15632#15638
30K → 20M18720+167#15638#15471
20M → 21M18427+157#15471#15314
21M → 35K10320+83#15314#15231
35K → 23M18523+162#15231#15069
23M → 24M13024+106#15069#14963
24M → 40K1777+170#14963#14793
40K → 25.2M514+47#14793#14746
25.2M → FINISH15514+141#14746#14605
TOTALS2230*1121+1081

* 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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