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BOSTON MARATHON 2026

Sommai Lomtaisong

Bib: 21260•F

NV

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
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
24:59
3.11 mi
Rank: #17249
Start → 5K
24:59 | 8:03/mi
10K
50:00
6.21 mi
Rank: #17422 (-173)
5K → 10K
25:01 | 8:04/mi
15K
1:15:20
9.32 mi
Rank: #17660 (-238)
10K → 15K
25:20 | 8:10/mi
20K
1:41:58
12.43 mi
Rank: #18198 (-538)
15K → 20K
26:38 | 8:35/mi
HALF
1:47:46
13.11 mi
Rank: #18293 (-95)
20K → HALF
5:48 | 8:31/mi
25K
2:10:44
15.53 mi
Rank: #19245 (-952)
HALF → 25K
22:58 | 9:29/mi
30K
2:40:37
18.64 mi
Rank: #19865 (-620)
25K → 30K
29:53 | 9:38/mi
20M
3:16:22
20.00 mi
Rank: #24359 (-4494)
30K → 20M
35:45 | 26:20/mi
21M
3:28:23
21.00 mi
Rank: #24417 (-58)
20M → 21M
12:01 | 12:01/mi
35K
3:35:55
21.75 mi
Rank: #24364 (+53)
21M → 35K
7:32 | 10:05/mi
23M
3:48:45
23.00 mi
Rank: #24266 (+98)
35K → 23M
12:50 | 10:16/mi
24M
3:59:01
24.00 mi
Rank: #24211 (+55)
23M → 24M
10:16 | 10:16/mi
40K
4:09:14
24.85 mi
Rank: #24291 (-80)
24M → 40K
10:13 | 11:57/mi
25.2M
4:13:05
25.20 mi
Rank: #24270 (+21)
40K → 25.2M
3:51 | 11:10/mi
FINISH
4:22:39
26.22 mi
Rank: #24198 (+72)
25.2M → FINISH
9:34 | 9:24/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:46
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time2:34:53
Pace11:49 /mi
📊Positive Split: 43.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4224:598:0324:59
8:03
-
10K
6.21 mi11:51:4350:008:0325:01
8:04
+0:01
15K
9.32 mi12:17:031:15:208:0525:20
8:10
+0:06
20K
12.43 mi12:43:411:41:588:1326:38
8:35
+0:25
HALF
13.11 mi12:49:291:47:468:145:48
8:31
-0:04
25K
15.53 mi13:12:272:10:448:2522:58
9:29
+0:58
30K
18.64 mi13:42:202:40:378:3729:53
9:38
+0:09
20M
20.00 mi14:18:053:16:229:5035:45
26:20
+16:42
21M
21.00 mi14:30:063:28:239:5612:01
12:01
-14:19
35K
21.75 mi14:37:383:35:559:567:32
10:05
-1:56
23M
23.00 mi14:50:283:48:459:5712:50
10:16
+0:11
24M
24.00 mi15:00:443:59:019:5810:16
10:16
0:00
40K
24.85 mi15:10:574:09:1410:0210:13
11:57
+1:41
25.2M
25.20 mi15:14:484:13:0510:033:51
11:10
-0:47
FINISH
26.22 mi15:24:224:22:3910:029:34
9:24
-1:46

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

8:03 /mi

Average Pace

10:01 /mi

Slowest Pace

26:20 /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

0:00

0% of race

Time at Steady Pace

3:24:40

78% of race

Time at Slower Pace

57:59

22% of race

Average Pace: 10:01 /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 mi11:26:4224:598:0324:59
8:03
#17249
10K
6.21 mi11:51:4350:008:0325:01
8:04
#17422
15K
9.32 mi12:17:031:15:208:0525:20
8:10
#17660
20K
12.43 mi12:43:411:41:588:1326:38
8:35
#18198
HALF
13.11 mi12:49:291:47:468:145:48
8:31
#18293
25K
15.53 mi13:12:272:10:448:2522:58
9:29
#19245
30K
18.64 mi13:42:202:40:378:3729:53
9:38
#19865
20M
20.00 mi14:18:053:16:229:5035:45
26:20
#24359
21M
21.00 mi14:30:063:28:239:5612:01
12:01
#24417
35K
21.75 mi14:37:383:35:559:567:32
10:05
#24364
23M
23.00 mi14:50:283:48:459:5712:50
10:16
#24266
24M
24.00 mi15:00:443:59:019:5810:16
10:16
#24211
40K
24.85 mi15:10:574:09:1410:0210:13
11:57
#24291
25.2M
25.20 mi15:14:484:13:0510:033:51
11:10
#24270
FINISH
26.22 mi15:24:224:22:3910:029:34
9:24
#24198
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi172496062606218059(Top 62%)6510(Top 52%)6510(Top 365%)
10K6.21 mi3.10 mi17422-1736171-1096171-10917655(Top 61%)6298(Top 50%)6298(Top 353%)
15K9.32 mi3.11 mi17660-2386299-1286299-12818059(Top 62%)6510(Top 52%)6510(Top 365%)
20K12.43 mi3.11 mi18198-5386595-2966595-29619730(Top 68%)7485(Top 60%)7485(Top 419%)
HALF13.11 mi0.68 mi18293-956653-586653-5820373(Top 70%)7804(Top 62%)7804(Top 437%)
25K15.53 mi2.42 mi19245-9527209-5567209-55622945(Top 79%)9176(Top 73%)9176(Top 514%)
30K18.64 mi3.11 mi19865-6207583-3747583-37422022(Top 76%)8779(Top 70%)8779(Top 492%)
20M20.00 mi1.36 mi24359-44949896-23139896-231329020(Top 100%)12578(Top 100%)12578(Top 704%)
21M21.00 mi1.00 mi24417-589942-469942-4625108(Top 87%)10555(Top 84%)10555(Top 591%)
35K21.75 mi0.75 mi24364+539926+169926+1623359(Top 80%)9635(Top 77%)9635(Top 539%)
23M23.00 mi1.25 mi24266+989895+319895+3122812(Top 79%)9424(Top 75%)9424(Top 528%)
24M24.00 mi1.00 mi24211+559887+89887+823537(Top 81%)9827(Top 78%)9827(Top 550%)
40K24.85 mi0.85 mi24291-809950-639950-6325816(Top 89%)11052(Top 88%)11052(Top 619%)
25.2M25.20 mi0.35 mi24270+219939+119939+1122806(Top 79%)9509(Top 76%)9509(Top 532%)
FINISH26.22 mi1.02 mi24198+729918+219918+2121999(Top 76%)9068(Top 72%)9068(Top 508%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21
+97ft-345ft

Overall

18059

Females

6510

F45-49

6510

5K→10K

3.1 - 6.2 mi

Top 61%
×5
+79ft-138ft

Overall

17655

Females

6298

F45-49

6298

10K→15K

6.2 - 9.3 mi

Top 62%
×3
+67ft-78ft

Overall

18059

Females

6510

F45-49

6510

15K→20K

9.3 - 12.4 mi

Top 68%
×5
+106ft-86ft

Overall

19730

Females

7485

F45-49

7485

20K→HALF

12.4 - 13.1 mi

Top 70%
×2
+19ft-37ft

Overall

20373

Females

7804

F45-49

7804

HALF→25K

13.1 - 15.5 mi

Top 79%
×4
+66ft-88ft

Overall

22945

Females

9176

F45-49

9176

25K→30K

15.5 - 18.6 mi

Top 76%
×9
+181ft-148ft

Overall

22022

Females

8779

F45-49

8779

30K→20M

18.6 - 20.0 mi

Top 100%
×5
+64ft-50ft

Overall

29020

Females

12578

F45-49

12578

20M→21M

20.0 - 21.0 mi

Top 87%
×8
+106ft-24ft

Overall

25108

Females

10555

F45-49

10555

21M→35K

21.0 - 21.8 mi

Top 80%
×7
+17ft-86ft

Overall

23359

Females

9635

F45-49

9635

35K→23M

21.8 - 23.0 mi

Top 79%
×5
+23ft-63ft

Overall

22812

Females

9424

F45-49

9424

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23537

Females

9827

F45-49

9827

24M→40K

24.0 - 24.9 mi

Top 89%
×1
+6ft-20ft

Overall

25816

Females

11052

F45-49

11052

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1
+13ft-16ft

Overall

22806

Females

9509

F45-49

9509

25.2M→FINISH

25.2 - 26.2 mi

Top 76%
×2
+22ft-21ft

Overall

21999

Females

9068

F45-49

9068

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
883
Passed By
7832
Net Change
-6949
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17249
5K → 10K201374-173#17249#17422
10K → 15K107345-238#17422#17660
15K → 20K59597-538#17660#18198
20K → HALF10105-95#18198#18293
HALF → 25K14966-952#18293#19245
25K → 30K68688-620#19245#19865
30K → 20M04494-4494#19865#24359
20M → 21M3997-58#24359#24417
21M → 35K6310+53#24417#24364
35K → 23M11012+98#24364#24266
23M → 24M7924+55#24266#24211
24M → 40K25105-80#24211#24291
40K → 25.2M232+21#24291#24270
25.2M → FINISH8513+72#24270#24198
TOTALS8837832-6949
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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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?

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing