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BOSTON MARATHON 2026

Chan Kit Sou

Bib: 4587β€’M

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 9%
Gender (Male)
#0 / 16340
Top 15%
Age Group (M18-39)
#0 / 5723
Top 35%
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
19:42
3.11 mi
Rank: #2998
Start β†’ 5K
19:42 | 6:21/mi
10K
39:05
6.21 mi
Rank: #2686 (+312)
5K β†’ 10K
19:23 | 6:15/mi
15K
58:34
9.32 mi
Rank: #2660 (+26)
10K β†’ 15K
19:29 | 6:17/mi
20K
1:18:17
12.43 mi
Rank: #2684 (-24)
15K β†’ 20K
19:43 | 6:21/mi
HALF
1:22:36
13.11 mi
Rank: #2710 (-26)
20K β†’ HALF
4:19 | 6:20/mi
25K
1:37:57
15.53 mi
Rank: #2651 (+59)
HALF β†’ 25K
15:21 | 6:20/mi
30K
1:58:05
18.64 mi
Rank: #2582 (+69)
25K β†’ 30K
20:08 | 6:29/mi
20M
2:06:57
20.00 mi
Rank: #2563 (+19)
30K β†’ 20M
8:52 | 6:32/mi
21M
2:13:50
21.00 mi
Rank: #2572 (-9)
20M β†’ 21M
6:53 | 6:53/mi
35K
2:18:36
21.75 mi
Rank: #2576 (-4)
21M β†’ 35K
4:46 | 6:23/mi
23M
2:26:40
23.00 mi
Rank: #2509 (+67)
35K β†’ 23M
8:04 | 6:27/mi
24M
2:33:01
24.00 mi
Rank: #2472 (+37)
23M β†’ 24M
6:21 | 6:21/mi
40K
2:38:36
24.85 mi
Rank: #2445 (+27)
24M β†’ 40K
5:35 | 6:32/mi
25.2M
2:41:06
25.20 mi
Rank: #2462 (-17)
40K β†’ 25.2M
2:30 | 7:15/mi
FINISH
2:47:48
26.22 mi
Rank: #2508 (-46)
25.2M β†’ FINISH
6:42 | 6:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:22:36
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:25:12
Pace6:30 /mi
πŸ“ŠPositive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2219:426:2119:42
6:21
-
10K
6.21 mi10:41:4539:056:1819:23
6:15
-0:06
15K
9.32 mi11:01:1458:346:1819:29
6:17
+0:02
20K
12.43 mi11:20:571:18:176:1819:43
6:21
+0:04
HALF
13.11 mi11:25:161:22:366:194:19
6:20
-0:01
25K
15.53 mi11:40:371:37:576:1915:21
6:20
0:00
30K
18.64 mi12:00:451:58:056:2120:08
6:29
+0:09
20M
20.00 mi12:09:372:06:576:218:52
6:32
+0:03
21M
21.00 mi12:16:302:13:506:236:53
6:53
+0:21
35K
21.75 mi12:21:162:18:366:234:46
6:23
-0:30
23M
23.00 mi12:29:202:26:406:238:04
6:27
+0:04
24M
24.00 mi12:35:412:33:016:236:21
6:21
-0:06
40K
24.85 mi12:41:162:38:366:235:35
6:32
+0:11
25.2M
25.20 mi12:43:462:41:066:242:30
7:15
+0:43
FINISH
26.22 mi12:50:282:47:486:256:42
6:35
-0:40

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

6:15 /mi

Average Pace

6:24 /mi

Slowest Pace

7:15 /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

2:38:25

94% of race

Time at Steady Pace

9:23

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:24 /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 mi10:22:2219:426:2119:42
6:21
#2998
10K
6.21 mi10:41:4539:056:1819:23
6:15
#2686
15K
9.32 mi11:01:1458:346:1819:29
6:17
#2660
20K
12.43 mi11:20:571:18:176:1819:43
6:21
#2684
HALF
13.11 mi11:25:161:22:366:194:19
6:20
#2710
25K
15.53 mi11:40:371:37:576:1915:21
6:20
#2651
30K
18.64 mi12:00:451:58:056:2120:08
6:29
#2582
20M
20.00 mi12:09:372:06:576:218:52
6:32
#2563
21M
21.00 mi12:16:302:13:506:236:53
6:53
#2572
35K
21.75 mi12:21:162:18:366:234:46
6:23
#2576
23M
23.00 mi12:29:202:26:406:238:04
6:27
#2509
24M
24.00 mi12:35:412:33:016:236:21
6:21
#2472
40K
24.85 mi12:41:162:38:366:235:35
6:32
#2445
25.2M
25.20 mi12:43:462:41:066:242:30
7:15
#2462
FINISH
26.22 mi12:50:282:47:486:256:42
6:35
#2508
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2998286828682702(Top 9%)2598(Top 16%)2598(Top 45%)
10K6.21 mi3.10 mi2686+3122580+2882580+2882485(Top 9%)2393(Top 15%)2393(Top 42%)
15K9.32 mi3.11 mi2660+262557+232557+232702(Top 9%)2598(Top 16%)2598(Top 45%)
20K12.43 mi3.11 mi2684-242581-242581-242838(Top 10%)2726(Top 17%)2726(Top 48%)
HALF13.11 mi0.68 mi2710-262606-252606-253206(Top 11%)3082(Top 19%)3082(Top 54%)
25K15.53 mi2.42 mi2651+592552+542552+542492(Top 9%)2394(Top 15%)2394(Top 42%)
30K18.64 mi3.11 mi2582+692481+712481+712472(Top 9%)2366(Top 14%)2366(Top 41%)
20M20.00 mi1.36 mi2563+192462+192462+192557(Top 9%)2421(Top 15%)2421(Top 42%)
21M21.00 mi1.00 mi2572-92469-72469-72824(Top 10%)2638(Top 16%)2638(Top 46%)
35K21.75 mi0.75 mi2576-42473-42473-42827(Top 10%)2641(Top 16%)2641(Top 46%)
23M23.00 mi1.25 mi2509+672410+632410+632171(Top 7%)2050(Top 13%)2050(Top 36%)
24M24.00 mi1.00 mi2472+372375+352375+352414(Top 8%)2246(Top 14%)2246(Top 39%)
40K24.85 mi0.85 mi2445+272348+272348+272676(Top 9%)2459(Top 15%)2459(Top 43%)
25.2M25.20 mi0.35 mi2462-172364-162364-163745(Top 13%)3260(Top 20%)3260(Top 57%)
FINISH26.22 mi1.02 mi2508-462406-422406-424581(Top 16%)3885(Top 24%)3885(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
Γ—21
+97ft-345ft

Overall

2702

Males

2598

M18-39

2598

5K→10K

3.1 - 6.2 mi

Top 9%
Γ—5
+79ft-138ft

Overall

2485

Males

2393

M18-39

2393

10K→15K

6.2 - 9.3 mi

Top 9%
Γ—3
+67ft-78ft

Overall

2702

Males

2598

M18-39

2598

15K→20K

9.3 - 12.4 mi

Top 10%
Γ—5
+106ft-86ft

Overall

2838

Males

2726

M18-39

2726

20K→HALF

12.4 - 13.1 mi

Top 11%
Γ—2
+19ft-37ft

Overall

3206

Males

3082

M18-39

3082

HALF→25K

13.1 - 15.5 mi

Top 9%
Γ—4
+66ft-88ft

Overall

2492

Males

2394

M18-39

2394

25K→30K

15.5 - 18.6 mi

Top 9%
Γ—9
+181ft-148ft

Overall

2472

Males

2366

M18-39

2366

30K→20M

18.6 - 20.0 mi

Top 9%
Γ—5
+64ft-50ft

Overall

2557

Males

2421

M18-39

2421

20M→21M

20.0 - 21.0 mi

Top 10%
Γ—8
+106ft-24ft

Overall

2824

Males

2638

M18-39

2638

21M→35K

21.0 - 21.8 mi

Top 10%
Γ—7
+17ft-86ft

Overall

2827

Males

2641

M18-39

2641

35K→23M

21.8 - 23.0 mi

Top 7%
Γ—5
+23ft-63ft

Overall

2171

Males

2050

M18-39

2050

23M→24M

23.0 - 24.0 mi

Top 8%
Γ—6
+12ft-82ft

Overall

2414

Males

2246

M18-39

2246

24M→40K

24.0 - 24.9 mi

Top 9%
Γ—1
+6ft-20ft

Overall

2676

Males

2459

M18-39

2459

40K→25.2M

24.9 - 25.2 mi

Top 13%
Γ—1
+13ft-16ft

Overall

3745

Males

3260

M18-39

3260

25.2M→FINISH

25.2 - 26.2 mi

Top 16%
Γ—2
+22ft-21ft

Overall

4581

Males

3885

M18-39

3885

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1025
Passed By
535
Net Change
+490
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#2998
5K β†’ 10K34634+312#2998#2686
10K β†’ 15K8963+26#2686#2660
15K β†’ 20K6387-24#2660#2684
20K β†’ HALF430-26#2684#2710
HALF β†’ 25K8930+59#2710#2651
25K β†’ 30K12253+69#2651#2582
30K β†’ 20M5233+19#2582#2563
20M β†’ 21M2332-9#2563#2572
21M β†’ 35K2832-4#2572#2576
35K β†’ 23M8013+67#2576#2509
23M β†’ 24M5316+37#2509#2472
24M β†’ 40K4821+27#2472#2445
40K β†’ 25.2M724-17#2445#2462
25.2M β†’ FINISH2167-46#2462#2508
TOTALS1025535+490
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing