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BOSTON MARATHON 2026

Wan-Bor Chiu

Bib: 13903•M

NY

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 27%
Gender (Male)
#0 / 16340
Top 40%
Masters (Masters Men)
#0 / 10617
Top 27%
Age Group (M50-54)
#0 / 1868
Top 23%
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
21:57
3.11 mi
Rank: #9077
Start → 5K
21:57 | 7:04/mi
10K
43:53
6.21 mi
Rank: #9059 (+18)
5K → 10K
21:56 | 7:04/mi
15K
1:05:45
9.32 mi
Rank: #8956 (+103)
10K → 15K
21:52 | 7:03/mi
20K
1:28:01
12.43 mi
Rank: #8961 (-5)
15K → 20K
22:16 | 7:11/mi
HALF
1:32:52
13.11 mi
Rank: #8995 (-34)
20K → HALF
4:51 | 7:07/mi
25K
1:50:08
15.53 mi
Rank: #8840 (+155)
HALF → 25K
17:16 | 7:08/mi
30K
2:12:41
18.64 mi
Rank: #8557 (+283)
25K → 30K
22:33 | 7:16/mi
20M
2:22:43
20.00 mi
Rank: #8484 (+73)
30K → 20M
10:02 | 7:24/mi
21M
2:30:30
21.00 mi
Rank: #8437 (+47)
20M → 21M
7:47 | 7:47/mi
35K
2:35:39
21.75 mi
Rank: #8336 (+101)
21M → 35K
5:09 | 6:54/mi
23M
2:44:46
23.00 mi
Rank: #8223 (+113)
35K → 23M
9:07 | 7:18/mi
24M
2:51:48
24.00 mi
Rank: #8124 (+99)
23M → 24M
7:02 | 7:02/mi
40K
2:57:59
24.85 mi
Rank: #8036 (+88)
24M → 40K
6:11 | 7:14/mi
25.2M
3:00:42
25.20 mi
Rank: #7998 (+38)
40K → 25.2M
2:43 | 7:53/mi
FINISH
3:07:50
26.22 mi
Rank: #7943 (+55)
25.2M → FINISH
7:08 | 7:00/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:52
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:34:58
Pace7:15 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1721:577:0421:57
7:04
-
10K
6.21 mi11:13:1343:537:0421:56
7:04
0:00
15K
9.32 mi11:35:051:05:457:0421:52
7:03
-0:01
20K
12.43 mi11:57:211:28:017:0522:16
7:11
+0:08
HALF
13.11 mi12:02:121:32:527:064:51
7:07
-0:04
25K
15.53 mi12:19:281:50:087:0617:16
7:08
+0:01
30K
18.64 mi12:42:012:12:417:0822:33
7:16
+0:08
20M
20.00 mi12:52:032:22:437:0910:02
7:24
+0:08
21M
21.00 mi12:59:502:30:307:117:47
7:47
+0:23
35K
21.75 mi13:04:592:35:397:105:09
6:54
-0:53
23M
23.00 mi13:14:062:44:467:109:07
7:18
+0:24
24M
24.00 mi13:21:082:51:487:107:02
7:02
-0:16
40K
24.85 mi13:27:192:57:597:106:11
7:14
+0:12
25.2M
25.20 mi13:30:023:00:427:112:43
7:53
+0:39
FINISH
26.22 mi13:37:103:07:507:117:08
7:00
-0:53

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

6:54 /mi

Average Pace

7:10 /mi

Slowest Pace

7:53 /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

2:57:20

94% of race

Time at Steady Pace

10:30

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:10 /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 mi10:51:1721:577:0421:57
7:04
#9077
10K
6.21 mi11:13:1343:537:0421:56
7:04
#9059
15K
9.32 mi11:35:051:05:457:0421:52
7:03
#8956
20K
12.43 mi11:57:211:28:017:0522:16
7:11
#8961
HALF
13.11 mi12:02:121:32:527:064:51
7:07
#8995
25K
15.53 mi12:19:281:50:087:0617:16
7:08
#8840
30K
18.64 mi12:42:012:12:417:0822:33
7:16
#8557
20M
20.00 mi12:52:032:22:437:0910:02
7:24
#8484
21M
21.00 mi12:59:502:30:307:117:47
7:47
#8437
35K
21.75 mi13:04:592:35:397:105:09
6:54
#8336
23M
23.00 mi13:14:062:44:467:109:07
7:18
#8223
24M
24.00 mi13:21:082:51:487:107:02
7:02
#8124
40K
24.85 mi13:27:192:57:597:106:11
7:14
#8036
25.2M
25.20 mi13:30:023:00:427:112:43
7:53
#7998
FINISH
26.22 mi13:37:103:07:507:117:08
7:00
#7943
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 mi9077759775978793(Top 30%)7350(Top 45%)7350(Top 393%)
10K6.21 mi3.10 mi9059+187562+357562+359111(Top 31%)7566(Top 46%)7566(Top 405%)
15K9.32 mi3.11 mi8956+1037485+777485+778793(Top 30%)7350(Top 45%)7350(Top 393%)
20K12.43 mi3.11 mi8961-57465+207465+209078(Top 31%)7459(Top 46%)7459(Top 399%)
HALF13.11 mi0.68 mi8995-347492-277492-279482(Top 33%)7694(Top 47%)7694(Top 412%)
25K15.53 mi2.42 mi8840+1557372+1207372+1208256(Top 28%)6897(Top 42%)6897(Top 369%)
30K18.64 mi3.11 mi8557+2837163+2097163+2097775(Top 27%)6478(Top 40%)6478(Top 347%)
20M20.00 mi1.36 mi8484+737100+637100+638289(Top 29%)6649(Top 41%)6649(Top 356%)
21M21.00 mi1.00 mi8437+477036+647036+648354(Top 29%)6576(Top 40%)6576(Top 352%)
35K21.75 mi0.75 mi8336+1016965+716965+716301(Top 22%)5379(Top 33%)5379(Top 288%)
23M23.00 mi1.25 mi8223+1136869+966869+967341(Top 25%)5969(Top 37%)5969(Top 320%)
24M24.00 mi1.00 mi8124+996781+886781+886701(Top 23%)5503(Top 34%)5503(Top 295%)
40K24.85 mi0.85 mi8036+886704+776704+776948(Top 24%)5579(Top 34%)5579(Top 299%)
25.2M25.20 mi0.35 mi7998+386668+366668+367520(Top 26%)5851(Top 36%)5851(Top 313%)
FINISH26.22 mi1.02 mi7943+556606+626606+627541(Top 26%)5799(Top 35%)5799(Top 310%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21
+97ft-345ft

Overall

8793

Males

7350

M50-54

7350

5K→10K

3.1 - 6.2 mi

Top 31%
×5
+79ft-138ft

Overall

9111

Males

7566

M50-54

7566

10K→15K

6.2 - 9.3 mi

Top 30%
×3
+67ft-78ft

Overall

8793

Males

7350

M50-54

7350

15K→20K

9.3 - 12.4 mi

Top 31%
×5
+106ft-86ft

Overall

9078

Males

7459

M50-54

7459

20K→HALF

12.4 - 13.1 mi

Top 33%
×2
+19ft-37ft

Overall

9482

Males

7694

M50-54

7694

HALF→25K

13.1 - 15.5 mi

Top 28%
×4
+66ft-88ft

Overall

8256

Males

6897

M50-54

6897

25K→30K

15.5 - 18.6 mi

Top 27%
×9
+181ft-148ft

Overall

7775

Males

6478

M50-54

6478

30K→20M

18.6 - 20.0 mi

Top 29%
×5
+64ft-50ft

Overall

8289

Males

6649

M50-54

6649

20M→21M

20.0 - 21.0 mi

Top 29%
×8
+106ft-24ft

Overall

8354

Males

6576

M50-54

6576

21M→35K

21.0 - 21.8 mi

Top 22%
×7
+17ft-86ft

Overall

6301

Males

5379

M50-54

5379

35K→23M

21.8 - 23.0 mi

Top 25%
×5
+23ft-63ft

Overall

7341

Males

5969

M50-54

5969

23M→24M

23.0 - 24.0 mi

Top 23%
×6
+12ft-82ft

Overall

6701

Males

5503

M50-54

5503

24M→40K

24.0 - 24.9 mi

Top 24%
×1
+6ft-20ft

Overall

6948

Males

5579

M50-54

5579

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1
+13ft-16ft

Overall

7520

Males

5851

M50-54

5851

25.2M→FINISH

25.2 - 26.2 mi

Top 26%
×2
+22ft-21ft

Overall

7541

Males

5799

M50-54

5799

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1922
Passed By
788
Net Change
+1134
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9077
5K → 10K229211+18#9077#9059
10K → 15K19693+103#9059#8956
15K → 20K122127-5#8956#8961
20K → HALF1549-34#8961#8995
HALF → 25K18328+155#8995#8840
25K → 30K32643+283#8840#8557
30K → 20M11946+73#8557#8484
20M → 21M10457+47#8484#8437
21M → 35K1109+101#8437#8336
35K → 23M13926+113#8336#8223
23M → 24M11516+99#8223#8124
24M → 40K11325+88#8124#8036
40K → 25.2M4810+38#8036#7998
25.2M → FINISH10348+55#7998#7943
TOTALS1922788+1134
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing