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

Kaila Chanthaboun

Bib: 26582•F

MA

Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
35:22
3.11 mi
Rank: #28427
Start → 5K
35:22 | 11:24/mi
10K
1:10:07
6.21 mi
Rank: #28202 (+225)
5K → 10K
34:45 | 11:12/mi
15K
1:44:57
9.32 mi
Rank: #28030 (+172)
10K → 15K
34:50 | 11:13/mi
20K
2:21:47
12.43 mi
Rank: #28009 (+21)
15K → 20K
36:50 | 11:52/mi
HALF
2:29:20
13.11 mi
Rank: #27996 (+13)
20K → HALF
7:33 | 11:05/mi
25K
2:56:41
15.53 mi
Rank: #27781 (+215)
HALF → 25K
27:21 | 11:17/mi
30K
3:32:44
18.64 mi
Rank: #27538 (+243)
25K → 30K
36:03 | 11:37/mi
20M
3:48:30
20.00 mi
Rank: #27435 (+103)
30K → 20M
15:46 | 11:37/mi
21M
4:00:16
21.00 mi
Rank: #27328 (+107)
20M → 21M
11:46 | 11:46/mi
35K
4:08:17
21.75 mi
Rank: #27251 (+77)
21M → 35K
8:01 | 10:43/mi
23M
4:21:46
23.00 mi
Rank: #27126 (+125)
35K → 23M
13:29 | 10:47/mi
24M
4:33:10
24.00 mi
Rank: #27090 (+36)
23M → 24M
11:24 | 11:24/mi
40K
4:42:36
24.85 mi
Rank: #27014 (+76)
24M → 40K
9:26 | 11:02/mi
25.2M
4:47:07
25.20 mi
Rank: #27002 (+12)
40K → 25.2M
4:31 | 13:06/mi
FINISH
4:56:50
26.22 mi
Rank: #26914 (+88)
25.2M → FINISH
9:43 | 9:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time2:29:20
Pace11:24 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:27:30
Pace11:16 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:4335:2211:2435:22
11:24
-
10K
6.21 mi12:17:281:10:0711:1834:45
11:12
-0:12
15K
9.32 mi12:52:181:44:5711:1634:50
11:13
+0:01
20K
12.43 mi13:29:082:21:4711:2536:50
11:52
+0:39
HALF
13.11 mi13:36:412:29:2011:247:33
11:05
-0:47
25K
15.53 mi14:04:022:56:4111:2327:21
11:17
+0:12
30K
18.64 mi14:40:053:32:4411:2536:03
11:37
+0:20
20M
20.00 mi14:55:513:48:3011:2615:46
11:37
0:00
21M
21.00 mi15:07:374:00:1611:2711:46
11:46
+0:09
35K
21.75 mi15:15:384:08:1711:258:01
10:43
-1:03
23M
23.00 mi15:29:074:21:4611:2313:29
10:47
+0:04
24M
24.00 mi15:40:314:33:1011:2311:24
11:24
+0:37
40K
24.85 mi15:49:574:42:3611:239:26
11:02
-0:22
25.2M
25.20 mi15:54:284:47:0711:244:31
13:06
+2:04
FINISH
26.22 mi16:04:114:56:5011:209:43
9:33
-3:33

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

9:33 /mi

Average Pace

11:20 /mi

Slowest Pace

13:06 /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

31:13

11% of race

Time at Steady Pace

3:32:30

72% of race

Time at Slower Pace

53:07

18% of race

Average Pace: 11:19 /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 mi11:42:4335:2211:2435:22
11:24
#28427
10K
6.21 mi12:17:281:10:0711:1834:45
11:12
#28202
15K
9.32 mi12:52:181:44:5711:1634:50
11:13
#28030
20K
12.43 mi13:29:082:21:4711:2536:50
11:52
#28009
HALF
13.11 mi13:36:412:29:2011:247:33
11:05
#27996
25K
15.53 mi14:04:022:56:4111:2327:21
11:17
#27781
30K
18.64 mi14:40:053:32:4411:2536:03
11:37
#27538
20M
20.00 mi14:55:513:48:3011:2615:46
11:37
#27435
21M
21.00 mi15:07:374:00:1611:2711:46
11:46
#27328
35K
21.75 mi15:15:384:08:1711:258:01
10:43
#27251
23M
23.00 mi15:29:074:21:4611:2313:29
10:47
#27126
24M
24.00 mi15:40:314:33:1011:2311:24
11:24
#27090
40K
24.85 mi15:49:574:42:3611:239:26
11:02
#27014
25.2M
25.20 mi15:54:284:47:0711:244:31
13:06
#27002
FINISH
26.22 mi16:04:114:56:5011:209:43
9:33
#26914
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi28427121691216927677(Top 95%)11712(Top 93%)11712(Top 205%)
10K6.21 mi3.10 mi28202+22512013+15612013+15627901(Top 96%)11858(Top 94%)11858(Top 207%)
15K9.32 mi3.11 mi28030+17211908+10511908+10527677(Top 95%)11712(Top 93%)11712(Top 205%)
20K12.43 mi3.11 mi28009+2111909-111909-127894(Top 96%)11850(Top 94%)11850(Top 207%)
HALF13.11 mi0.68 mi27996+1311901+811901+827467(Top 95%)11630(Top 92%)11630(Top 203%)
25K15.53 mi2.42 mi27781+21511773+12811773+12826741(Top 92%)11219(Top 89%)11219(Top 196%)
30K18.64 mi3.11 mi27538+24311656+11711656+11726263(Top 90%)11041(Top 88%)11041(Top 193%)
20M20.00 mi1.36 mi27435+10311604+5211604+5225863(Top 89%)10915(Top 87%)10915(Top 191%)
21M21.00 mi1.00 mi27328+10711547+5711547+5724689(Top 85%)10341(Top 82%)10341(Top 181%)
35K21.75 mi0.75 mi27251+7711501+4611501+4624735(Top 85%)10390(Top 83%)10390(Top 182%)
23M23.00 mi1.25 mi27126+12511439+6211439+6224021(Top 83%)10080(Top 80%)10080(Top 176%)
24M24.00 mi1.00 mi27090+3611428+1111428+1125814(Top 89%)11006(Top 88%)11006(Top 193%)
40K24.85 mi0.85 mi27014+7611389+3911389+3924339(Top 84%)10310(Top 82%)10310(Top 180%)
25.2M25.20 mi0.35 mi27002+1211387+211387+226218(Top 90%)11232(Top 89%)11232(Top 197%)
FINISH26.22 mi1.02 mi26914+8811341+4611341+4622491(Top 77%)9341(Top 74%)9341(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21
+97ft-345ft

Overall

27677

Females

11712

F18-39

11712

5K→10K

3.1 - 6.2 mi

Top 96%
×5
+79ft-138ft

Overall

27901

Females

11858

F18-39

11858

10K→15K

6.2 - 9.3 mi

Top 95%
×3
+67ft-78ft

Overall

27677

Females

11712

F18-39

11712

15K→20K

9.3 - 12.4 mi

Top 96%
×5
+106ft-86ft

Overall

27894

Females

11850

F18-39

11850

20K→HALF

12.4 - 13.1 mi

Top 95%
×2
+19ft-37ft

Overall

27467

Females

11630

F18-39

11630

HALF→25K

13.1 - 15.5 mi

Top 92%
×4
+66ft-88ft

Overall

26741

Females

11219

F18-39

11219

25K→30K

15.5 - 18.6 mi

Top 90%
×9
+181ft-148ft

Overall

26263

Females

11041

F18-39

11041

30K→20M

18.6 - 20.0 mi

Top 89%
×5
+64ft-50ft

Overall

25863

Females

10915

F18-39

10915

20M→21M

20.0 - 21.0 mi

Top 85%
×8
+106ft-24ft

Overall

24689

Females

10341

F18-39

10341

21M→35K

21.0 - 21.8 mi

Top 85%
×7
+17ft-86ft

Overall

24735

Females

10390

F18-39

10390

35K→23M

21.8 - 23.0 mi

Top 83%
×5
+23ft-63ft

Overall

24021

Females

10080

F18-39

10080

23M→24M

23.0 - 24.0 mi

Top 89%
×6
+12ft-82ft

Overall

25814

Females

11006

F18-39

11006

24M→40K

24.0 - 24.9 mi

Top 84%
×1
+6ft-20ft

Overall

24339

Females

10310

F18-39

10310

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1
+13ft-16ft

Overall

26218

Females

11232

F18-39

11232

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
×2
+22ft-21ft

Overall

22491

Females

9341

F18-39

9341

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1660
Passed By
147
Net Change
+1513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28427
5K → 10K25328+225#28427#28202
10K → 15K19422+172#28202#28030
15K → 20K8160+21#28030#28009
20K → HALF229+13#28009#27996
HALF → 25K2172+215#27996#27781
25K → 30K2485+243#27781#27538
30K → 20M1074+103#27538#27435
20M → 21M1092+107#27435#27328
21M → 35K770+77#27328#27251
35K → 23M1250+125#27251#27126
23M → 24M448+36#27126#27090
24M → 40K760+76#27090#27014
40K → 25.2M197+12#27014#27002
25.2M → FINISH880+88#27002#26914
TOTALS1660147+1513
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

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