All Results|Race Analytics|Course|Contact

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kah Chuan Ong

Bib: 29657 •M •Age: N/A

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 (M50-54)
#0 / 1868
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
28:54
3.11 mi
Rank: #23806
Start → 5K
28:54 | 9:19/mi
10K
57:17
6.21 mi
Rank: #23612 (+194)
5K → 10K
28:23 | 9:09/mi
15K
1:26:31
9.32 mi
Rank: #23850 (-238)
10K → 15K
29:14 | 9:25/mi
20K
1:56:59
12.43 mi
Rank: #24055 (-205)
15K → 20K
30:28 | 9:49/mi
HALF
2:03:39
13.11 mi
Rank: #24112 (-57)
20K → HALF
6:40 | 9:47/mi
25K
2:27:44
15.53 mi
Rank: #24130 (-18)
HALF → 25K
24:05 | 9:56/mi
30K
3:01:10
18.64 mi
Rank: #24260 (-130)
25K → 30K
33:26 | 10:46/mi
20M
3:17:00
20.00 mi
Rank: #24443 (-183)
30K → 20M
15:50 | 11:40/mi
21M
3:29:21
21.00 mi
Rank: #24518 (-75)
20M → 21M
12:21 | 12:21/mi
35K
3:37:36
21.75 mi
Rank: #24554 (-36)
21M → 35K
8:15 | 11:02/mi
23M
3:51:37
23.00 mi
Rank: #24580 (-26)
35K → 23M
14:01 | 11:13/mi
24M
4:02:25
24.00 mi
Rank: #24582 (-2)
23M → 24M
10:48 | 10:48/mi
40K
4:11:40
24.85 mi
Rank: #24541 (+41)
24M → 40K
9:15 | 10:50/mi
25.2M
4:16:00
25.20 mi
Rank: #24566 (-25)
40K → 25.2M
4:20 | 12:34/mi
FINISH
4:26:44
26.22 mi
Rank: #24602 (-36)
25.2M → 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
Time2:03:39
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:23:05
Pace10:55 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0628:549:1928:54
9:19
-
10K
6.21 mi12:21:2957:179:1428:23
9:09
-0:10
15K
9.32 mi12:50:431:26:319:1729:14
9:25
+0:16
20K
12.43 mi13:21:111:56:599:2530:28
9:49
+0:24
HALF
13.11 mi13:27:512:03:399:266:40
9:47
-0:02
25K
15.53 mi13:51:562:27:449:3124:05
9:56
+0:09
30K
18.64 mi14:25:223:01:109:4433:26
10:46
+0:50
20M
20.00 mi14:41:123:17:009:5215:50
11:40
+0:54
21M
21.00 mi14:53:333:29:219:5912:21
12:21
+0:41
35K
21.75 mi15:01:483:37:3610:018:15
11:02
-1:19
23M
23.00 mi15:15:493:51:3710:0514:01
11:13
+0:11
24M
24.00 mi15:26:374:02:2510:0710:48
10:48
-0:25
40K
24.85 mi15:35:524:11:4010:089:15
10:50
+0:02
25.2M
25.20 mi15:40:124:16:0010:104:20
12:34
+1:44
FINISH
26.22 mi15:50:564:26:4410:1110:44
10:32
-2:02

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

9:09 /mi

Average Pace

10:11 /mi

Slowest Pace

12:34 /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

2:27:44

55% of race

Time at Steady Pace

1:26:29

32% of race

Time at Slower Pace

32:31

12% of race

Average Pace: 10:10 /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 mi11:53:0628:549:1928:54
9:19
#23806
10K
6.21 mi12:21:2957:179:1428:23
9:09
#23612
15K
9.32 mi12:50:431:26:319:1729:14
9:25
#23850
20K
12.43 mi13:21:111:56:599:2530:28
9:49
#24055
HALF
13.11 mi13:27:512:03:399:266:40
9:47
#24112
25K
15.53 mi13:51:562:27:449:3124:05
9:56
#24130
30K
18.64 mi14:25:223:01:109:4433:26
10:46
#24260
20M
20.00 mi14:41:123:17:009:5215:50
11:40
#24443
21M
21.00 mi14:53:333:29:219:5912:21
12:21
#24518
35K
21.75 mi15:01:483:37:3610:018:15
11:02
#24554
23M
23.00 mi15:15:493:51:3710:0514:01
11:13
#24580
24M
24.00 mi15:26:374:02:2510:0710:48
10:48
#24582
40K
24.85 mi15:35:524:11:4010:089:15
10:50
#24541
25.2M
25.20 mi15:40:124:16:0010:104:20
12:34
#24566
FINISH
26.22 mi15:50:564:26:4410:1110:44
10:32
#24602
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 mi23806141421414224169(Top 83%)14337(Top 88%)14337(Top 768%)
10K6.21 mi3.10 mi23612+19414039+10314039+10323369(Top 81%)13940(Top 85%)13940(Top 746%)
15K9.32 mi3.11 mi23850-23814178-13914178-13924169(Top 83%)14337(Top 88%)14337(Top 768%)
20K12.43 mi3.11 mi24055-20514276-9814276-9824566(Top 85%)14490(Top 89%)14490(Top 776%)
HALF13.11 mi0.68 mi24112-5714307-3114307-3125078(Top 86%)14717(Top 90%)14717(Top 788%)
25K15.53 mi2.42 mi24130-1814298+914298+924124(Top 83%)14253(Top 87%)14253(Top 763%)
30K18.64 mi3.11 mi24260-13014332-3414332-3424858(Top 86%)14469(Top 89%)14469(Top 775%)
20M20.00 mi1.36 mi24443-18314403-7114403-7125913(Top 89%)14876(Top 91%)14876(Top 796%)
21M21.00 mi1.00 mi24518-7514434-3114434-3125566(Top 88%)14669(Top 90%)14669(Top 785%)
35K21.75 mi0.75 mi24554-3614435-114435-125302(Top 87%)14529(Top 89%)14529(Top 778%)
23M23.00 mi1.25 mi24580-2614431+414431+424906(Top 86%)14289(Top 87%)14289(Top 765%)
24M24.00 mi1.00 mi24582-214419+1214419+1224705(Top 85%)14170(Top 87%)14170(Top 759%)
40K24.85 mi0.85 mi24541+4114378+4114378+4123869(Top 82%)13720(Top 84%)13720(Top 734%)
25.2M25.20 mi0.35 mi24566-2514386-814386-825428(Top 88%)14496(Top 89%)14496(Top 776%)
FINISH26.22 mi1.02 mi24602-3614383+314383+325131(Top 87%)14336(Top 88%)14336(Top 767%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21
+97ft-345ft

Overall

24169

Males

14337

M50-54

14337

5K→10K

3.1 - 6.2 mi

Top 81%
×5
+79ft-138ft

Overall

23369

Males

13940

M50-54

13940

10K→15K

6.2 - 9.3 mi

Top 83%
×3
+67ft-78ft

Overall

24169

Males

14337

M50-54

14337

15K→20K

9.3 - 12.4 mi

Top 85%
×5
+106ft-86ft

Overall

24566

Males

14490

M50-54

14490

20K→HALF

12.4 - 13.1 mi

Top 86%
×2
+19ft-37ft

Overall

25078

Males

14717

M50-54

14717

HALF→25K

13.1 - 15.5 mi

Top 83%
×4
+66ft-88ft

Overall

24124

Males

14253

M50-54

14253

25K→30K

15.5 - 18.6 mi

Top 86%
×9
+181ft-148ft

Overall

24858

Males

14469

M50-54

14469

30K→20M

18.6 - 20.0 mi

Top 89%
×5
+64ft-50ft

Overall

25913

Males

14876

M50-54

14876

20M→21M

20.0 - 21.0 mi

Top 88%
×8
+106ft-24ft

Overall

25566

Males

14669

M50-54

14669

21M→35K

21.0 - 21.8 mi

Top 87%
×7
+17ft-86ft

Overall

25302

Males

14529

M50-54

14529

35K→23M

21.8 - 23.0 mi

Top 86%
×5
+23ft-63ft

Overall

24906

Males

14289

M50-54

14289

23M→24M

23.0 - 24.0 mi

Top 85%
×6
+12ft-82ft

Overall

24705

Males

14170

M50-54

14170

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23869

Males

13720

M50-54

13720

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1
+13ft-16ft

Overall

25428

Males

14496

M50-54

14496

25.2M→FINISH

25.2 - 26.2 mi

Top 87%
×2
+22ft-21ft

Overall

25131

Males

14336

M50-54

14336

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
987*
Passed By
1553
Net Change
-796
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23806
5K → 10K341*147+194#23806#23612
10K → 15K77200-238#23612#23850
15K → 20K71200-205#23850#24055
20K → HALF1370-57#24055#24112
HALF → 25K106124-18#24112#24130
25K → 30K103200-130#24130#24260
30K → 20M23200-183#24260#24443
20M → 21M31106-75#24443#24518
21M → 35K3369-36#24518#24554
35K → 23M4268-26#24554#24580
23M → 24M4244-2#24580#24582
24M → 40K6221+41#24582#24541
40K → 25.2M1136-25#24541#24566
25.2M → FINISH3268-36#24566#24602
TOTALS987*1553-796

* 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

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...
Unlock Your Full

AI Performance Report

New

Understand What Really Happened During Your Race

Go deeper with personalized analysis powered by your official race data.

Your AI Performance Report includes:
  • Fatigue & pacing analysis
  • Finish time optimization
  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
Shareable via link — view it anywhere, share with anyone
AI Report Preview
Generating your preview…
$4.99
One-time purchase for this race
Includes a shareable link

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