All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Leon Lai

Bib: 33411β€’M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M40-44)
#0 / 2198
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
30:02
3.11 mi
Rank: #24988
Start β†’ 5K
30:02 | 9:41/mi
10K
1:00:25
6.21 mi
Rank: #25146 (-158)
5K β†’ 10K
30:23 | 9:47/mi
15K
1:28:59
9.32 mi
Rank: #24629 (+517)
10K β†’ 15K
28:34 | 9:12/mi
20K
1:59:14
12.43 mi
Rank: #24585 (+44)
15K β†’ 20K
30:15 | 9:45/mi
HALF
2:05:16
13.11 mi
Rank: #24491 (+94)
20K β†’ HALF
6:02 | 8:52/mi
25K
2:28:39
15.53 mi
Rank: #24310 (+181)
HALF β†’ 25K
23:23 | 9:39/mi
30K
3:01:22
18.64 mi
Rank: #24287 (+23)
25K β†’ 30K
32:43 | 10:32/mi
20M
3:15:57
20.00 mi
Rank: #24293 (-6)
30K β†’ 20M
14:35 | 10:45/mi
21M
3:28:23
21.00 mi
Rank: #24415 (-122)
20M β†’ 21M
12:26 | 12:26/mi
35K
3:36:10
21.75 mi
Rank: #24400 (+15)
21M β†’ 35K
7:47 | 10:25/mi
23M
3:50:15
23.00 mi
Rank: #24444 (-44)
35K β†’ 23M
14:05 | 11:16/mi
24M
4:00:21
24.00 mi
Rank: #24355 (+89)
23M β†’ 24M
10:06 | 10:06/mi
40K
4:10:19
24.85 mi
Rank: #24399 (-44)
24M β†’ 40K
9:58 | 11:40/mi
25.2M
4:16:07
25.20 mi
Rank: #24580 (-181)
40K β†’ 25.2M
5:48 | 16:50/mi
FINISH
4:26:51
26.22 mi
Rank: #24617 (-37)
25.2M β†’ FINISH
10:44 | 10:32/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:05:16
Pace9:34 /mi
2nd Half
Distance13.11 mi
Time2:21:35
Pace10:48 /mi
πŸ“ŠPositive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:01:5230:029:4130:02
9:41
-
10K
6.21 mi12:32:151:00:259:4430:23
9:47
+0:06
15K
9.32 mi13:00:491:28:599:3328:34
9:12
-0:35
20K
12.43 mi13:31:041:59:149:3630:15
9:45
+0:33
HALF
13.11 mi13:37:062:05:169:346:02
8:52
-0:53
25K
15.53 mi14:00:292:28:399:3523:23
9:39
+0:47
30K
18.64 mi14:33:123:01:229:4432:43
10:32
+0:53
20M
20.00 mi14:47:473:15:579:4814:35
10:45
+0:13
21M
21.00 mi15:00:133:28:239:5612:26
12:26
+1:41
35K
21.75 mi15:08:003:36:109:577:47
10:25
-2:01
23M
23.00 mi15:22:053:50:1510:0114:05
11:16
+0:51
24M
24.00 mi15:32:114:00:2110:0110:06
10:06
-1:10
40K
24.85 mi15:42:094:10:1910:059:58
11:40
+1:34
25.2M
25.20 mi15:47:574:16:0710:105:48
16:50
+5:10
FINISH
26.22 mi15:58:414:26:5110:1210:44
10:32
-6:18

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

8:52 /mi

Average Pace

10:11 /mi

Slowest Pace

16:50 /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

34:36

13% of race

Time at Steady Pace

3:24:03

76% of race

Time at Slower Pace

28:12

11% of race

Average Pace: 10:11 /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 mi12:01:5230:029:4130:02
9:41
#24988
10K
6.21 mi12:32:151:00:259:4430:23
9:47
#25146
15K
9.32 mi13:00:491:28:599:3328:34
9:12
#24629
20K
12.43 mi13:31:041:59:149:3630:15
9:45
#24585
HALF
13.11 mi13:37:062:05:169:346:02
8:52
#24491
25K
15.53 mi14:00:292:28:399:3523:23
9:39
#24310
30K
18.64 mi14:33:123:01:229:4432:43
10:32
#24287
20M
20.00 mi14:47:473:15:579:4814:35
10:45
#24293
21M
21.00 mi15:00:133:28:239:5612:26
12:26
#24415
35K
21.75 mi15:08:003:36:109:577:47
10:25
#24400
23M
23.00 mi15:22:053:50:1510:0114:05
11:16
#24444
24M
24.00 mi15:32:114:00:2110:0110:06
10:06
#24355
40K
24.85 mi15:42:094:10:1910:059:58
11:40
#24399
25.2M
25.20 mi15:47:574:16:0710:105:48
16:50
#24580
FINISH
26.22 mi15:58:414:26:5110:1210:44
10:32
#24617
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi24988147181471823475(Top 81%)13987(Top 86%)13987(Top 636%)
10K6.21 mi3.10 mi25146-15814790-7214790-7225294(Top 87%)14872(Top 91%)14872(Top 677%)
15K9.32 mi3.11 mi24629+51714559+23114559+23123475(Top 81%)13987(Top 86%)13987(Top 636%)
20K12.43 mi3.11 mi24585+4414531+2814531+2824398(Top 84%)14422(Top 88%)14422(Top 656%)
HALF13.11 mi0.68 mi24491+9414487+4414487+4422059(Top 76%)13317(Top 81%)13317(Top 606%)
25K15.53 mi2.42 mi24310+18114381+10614381+10623405(Top 81%)13893(Top 85%)13893(Top 632%)
30K18.64 mi3.11 mi24287+2314346+3514346+3524365(Top 84%)14235(Top 87%)14235(Top 648%)
20M20.00 mi1.36 mi24293-614337+914337+924359(Top 84%)14167(Top 87%)14167(Top 645%)
21M21.00 mi1.00 mi24415-12214378-4114378-4125676(Top 88%)14720(Top 90%)14720(Top 670%)
35K21.75 mi0.75 mi24400+1514360+1814360+1824109(Top 83%)13975(Top 86%)13975(Top 636%)
23M23.00 mi1.25 mi24444-4414369-914369-925007(Top 86%)14346(Top 88%)14346(Top 653%)
24M24.00 mi1.00 mi24355+8914299+7014299+7023081(Top 80%)13409(Top 82%)13409(Top 610%)
40K24.85 mi0.85 mi24399-4414298+114298+125349(Top 87%)14439(Top 88%)14439(Top 657%)
25.2M25.20 mi0.35 mi24580-18114392-9414392-9428686(Top 99%)16124(Top 99%)16124(Top 734%)
FINISH26.22 mi1.02 mi24617-3714391+114391+125133(Top 87%)14338(Top 88%)14338(Top 652%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
Γ—21
+97ft-345ft

Overall

23475

Males

13987

M40-44

13987

5K→10K

3.1 - 6.2 mi

Top 87%
Γ—5
+79ft-138ft

Overall

25294

Males

14872

M40-44

14872

10K→15K

6.2 - 9.3 mi

Top 81%
Γ—3
+67ft-78ft

Overall

23475

Males

13987

M40-44

13987

15K→20K

9.3 - 12.4 mi

Top 84%
Γ—5
+106ft-86ft

Overall

24398

Males

14422

M40-44

14422

20K→HALF

12.4 - 13.1 mi

Top 76%
Γ—2
+19ft-37ft

Overall

22059

Males

13317

M40-44

13317

HALF→25K

13.1 - 15.5 mi

Top 81%
Γ—4
+66ft-88ft

Overall

23405

Males

13893

M40-44

13893

25K→30K

15.5 - 18.6 mi

Top 84%
Γ—9
+181ft-148ft

Overall

24365

Males

14235

M40-44

14235

30K→20M

18.6 - 20.0 mi

Top 84%
Γ—5
+64ft-50ft

Overall

24359

Males

14167

M40-44

14167

20M→21M

20.0 - 21.0 mi

Top 88%
Γ—8
+106ft-24ft

Overall

25676

Males

14720

M40-44

14720

21M→35K

21.0 - 21.8 mi

Top 83%
Γ—7
+17ft-86ft

Overall

24109

Males

13975

M40-44

13975

35K→23M

21.8 - 23.0 mi

Top 86%
Γ—5
+23ft-63ft

Overall

25007

Males

14346

M40-44

14346

23M→24M

23.0 - 24.0 mi

Top 80%
Γ—6
+12ft-82ft

Overall

23081

Males

13409

M40-44

13409

24M→40K

24.0 - 24.9 mi

Top 87%
Γ—1
+6ft-20ft

Overall

25349

Males

14439

M40-44

14439

40K→25.2M

24.9 - 25.2 mi

Top 99%
Γ—1
+13ft-16ft

Overall

28686

Males

16124

M40-44

16124

25.2M→FINISH

25.2 - 26.2 mi

Top 87%
Γ—2
+22ft-21ft

Overall

25133

Males

14338

M40-44

14338

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1598*
Passed By
1132
Net Change
+371
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#24988
5K β†’ 10K137200-158#24988#25146
10K β†’ 15K525*8+517#25146#24629
15K β†’ 20K147103+44#24629#24585
20K β†’ HALF940+94#24585#24491
HALF β†’ 25K203*22+181#24491#24310
25K β†’ 30K153130+23#24310#24287
30K β†’ 20M6470-6#24287#24293
20M β†’ 21M26148-122#24293#24415
21M β†’ 35K4227+15#24415#24400
35K β†’ 23M4084-44#24400#24444
23M β†’ 24M967+89#24444#24355
24M β†’ 40K4185-44#24355#24399
40K β†’ 25.2M0181-181#24399#24580
25.2M β†’ FINISH3067-37#24580#24617
TOTALS1598*1132+371

* 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

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing