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BOSTON MARATHON 2026

Chia-Liang Chien

Bib: 15144•M

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0:00
0:00
/ mi
Masters
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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
23:43
3.11 mi
Rank: #13944
Start → 5K
23:43 | 7:39/mi
10K
48:05
6.21 mi
Rank: #14947 (-1003)
5K → 10K
24:22 | 7:51/mi
15K
1:12:32
9.32 mi
Rank: #15278 (-331)
10K → 15K
24:27 | 7:53/mi
20K
1:38:44
12.43 mi
Rank: #16399 (-1121)
15K → 20K
26:12 | 8:26/mi
HALF
1:45:53
13.11 mi
Rank: #17376 (-977)
20K → HALF
7:09 | 10:30/mi
25K
2:06:54
15.53 mi
Rank: #17731 (-355)
HALF → 25K
21:01 | 8:40/mi
30K
2:35:10
18.64 mi
Rank: #18174 (-443)
25K → 30K
28:16 | 9:06/mi
20M
2:49:55
20.00 mi
Rank: #18947 (-773)
30K → 20M
14:45 | 10:52/mi
21M
2:59:27
21.00 mi
Rank: #18950 (-3)
20M → 21M
9:32 | 9:32/mi
35K
3:07:02
21.75 mi
Rank: #19185 (-235)
21M → 35K
7:35 | 10:09/mi
23M
3:17:25
23.00 mi
Rank: #18921 (+264)
35K → 23M
10:23 | 8:18/mi
24M
3:26:08
24.00 mi
Rank: #18876 (+45)
23M → 24M
8:43 | 8:43/mi
40K
3:33:38
24.85 mi
Rank: #18815 (+61)
24M → 40K
7:30 | 8:47/mi
25.2M
3:37:18
25.20 mi
Rank: #18878 (-63)
40K → 25.2M
3:40 | 10:38/mi
FINISH
3:47:15
26.22 mi
Rank: #19143 (-265)
25.2M → FINISH
9:57 | 9:46/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:45:53
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time2:01:22
Pace9:16 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:2723:437:3923:43
7:39
-
10K
6.21 mi11:31:4948:057:4524:22
7:51
+0:12
15K
9.32 mi11:56:161:12:327:4724:27
7:53
+0:02
20K
12.43 mi12:22:281:38:447:5726:12
8:26
+0:33
HALF
13.11 mi12:29:371:45:538:057:09
10:30
+2:04
25K
15.53 mi12:50:382:06:548:1121:01
8:40
-1:50
30K
18.64 mi13:18:542:35:108:2028:16
9:06
+0:26
20M
20.00 mi13:33:392:49:558:3014:45
10:52
+1:46
21M
21.00 mi13:43:112:59:278:339:32
9:32
-1:20
35K
21.75 mi13:50:463:07:028:377:35
10:09
+0:37
23M
23.00 mi14:01:093:17:258:3610:23
8:18
-1:51
24M
24.00 mi14:09:523:26:088:368:43
8:43
+0:25
40K
24.85 mi14:17:223:33:388:367:30
8:47
+0:04
25.2M
25.20 mi14:21:023:37:188:383:40
10:38
+1:51
FINISH
26.22 mi14:30:593:47:158:419:57
9:46
-0:52

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

7:39 /mi

Average Pace

8:40 /mi

Slowest Pace

10:52 /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

1:12:32

32% of race

Time at Steady Pace

1:42:05

45% of race

Time at Slower Pace

52:38

23% of race

Average Pace: 8:40 /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 mi11:07:2723:437:3923:43
7:39
#13944
10K
6.21 mi11:31:4948:057:4524:22
7:51
#14947
15K
9.32 mi11:56:161:12:327:4724:27
7:53
#15278
20K
12.43 mi12:22:281:38:447:5726:12
8:26
#16399
HALF
13.11 mi12:29:371:45:538:057:09
10:30
#17376
25K
15.53 mi12:50:382:06:548:1121:01
8:40
#17731
30K
18.64 mi13:18:542:35:108:2028:16
9:06
#18174
20M
20.00 mi13:33:392:49:558:3014:45
10:52
#18947
21M
21.00 mi13:43:112:59:278:339:32
9:32
#18950
35K
21.75 mi13:50:463:07:028:377:35
10:09
#19185
23M
23.00 mi14:01:093:17:258:3610:23
8:18
#18921
24M
24.00 mi14:09:523:26:088:368:43
8:43
#18876
40K
24.85 mi14:17:223:33:388:367:30
8:47
#18815
25.2M
25.20 mi14:21:023:37:188:383:40
10:38
#18878
FINISH
26.22 mi14:30:593:47:158:419:57
9:46
#19143
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 mi139449852985215918(Top 55%)10555(Top 65%)10555(Top 565%)
10K6.21 mi3.10 mi14947-100310207-35510207-35515996(Top 55%)10630(Top 65%)10630(Top 569%)
15K9.32 mi3.11 mi15278-33110309-10210309-10215918(Top 55%)10555(Top 65%)10555(Top 565%)
20K12.43 mi3.11 mi16399-112110753-44410753-44418910(Top 65%)11810(Top 72%)11810(Top 632%)
HALF13.11 mi0.68 mi17376-97711156-40311156-40326628(Top 92%)15382(Top 94%)15382(Top 823%)
25K15.53 mi2.42 mi17731-35511311-15511311-15519522(Top 67%)12032(Top 74%)12032(Top 644%)
30K18.64 mi3.11 mi18174-44311462-15111462-15120047(Top 69%)12203(Top 75%)12203(Top 653%)
20M20.00 mi1.36 mi18947-77311779-31711779-31724628(Top 85%)14281(Top 87%)14281(Top 765%)
21M21.00 mi1.00 mi18950-311761+1811761+1818640(Top 64%)11437(Top 70%)11437(Top 612%)
35K21.75 mi0.75 mi19185-23511859-9811859-9823481(Top 81%)13682(Top 84%)13682(Top 732%)
23M23.00 mi1.25 mi18921+26411720+13911720+13914442(Top 50%)9444(Top 58%)9444(Top 506%)
24M24.00 mi1.00 mi18876+4511677+4311677+4318097(Top 62%)11002(Top 67%)11002(Top 589%)
40K24.85 mi0.85 mi18815+6111637+4011637+4017220(Top 59%)10518(Top 64%)10518(Top 563%)
25.2M25.20 mi0.35 mi18878-6311654-1711654-1721415(Top 74%)12545(Top 77%)12545(Top 672%)
FINISH26.22 mi1.02 mi19143-26511755-10111755-10123169(Top 80%)13385(Top 82%)13385(Top 717%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21
+97ft-345ft

Overall

15918

Males

10555

M50-54

10555

5K→10K

3.1 - 6.2 mi

Top 55%
×5
+79ft-138ft

Overall

15996

Males

10630

M50-54

10630

10K→15K

6.2 - 9.3 mi

Top 55%
×3
+67ft-78ft

Overall

15918

Males

10555

M50-54

10555

15K→20K

9.3 - 12.4 mi

Top 65%
×5
+106ft-86ft

Overall

18910

Males

11810

M50-54

11810

20K→HALF

12.4 - 13.1 mi

Top 92%
×2
+19ft-37ft

Overall

26628

Males

15382

M50-54

15382

HALF→25K

13.1 - 15.5 mi

Top 67%
×4
+66ft-88ft

Overall

19522

Males

12032

M50-54

12032

25K→30K

15.5 - 18.6 mi

Top 69%
×9
+181ft-148ft

Overall

20047

Males

12203

M50-54

12203

30K→20M

18.6 - 20.0 mi

Top 85%
×5
+64ft-50ft

Overall

24628

Males

14281

M50-54

14281

20M→21M

20.0 - 21.0 mi

Top 64%
×8
+106ft-24ft

Overall

18640

Males

11437

M50-54

11437

21M→35K

21.0 - 21.8 mi

Top 81%
×7
+17ft-86ft

Overall

23481

Males

13682

M50-54

13682

35K→23M

21.8 - 23.0 mi

Top 50%
×5
+23ft-63ft

Overall

14442

Males

9444

M50-54

9444

23M→24M

23.0 - 24.0 mi

Top 62%
×6
+12ft-82ft

Overall

18097

Males

11002

M50-54

11002

24M→40K

24.0 - 24.9 mi

Top 59%
×1
+6ft-20ft

Overall

17220

Males

10518

M50-54

10518

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1
+13ft-16ft

Overall

21415

Males

12545

M50-54

12545

25.2M→FINISH

25.2 - 26.2 mi

Top 80%
×2
+22ft-21ft

Overall

23169

Males

13385

M50-54

13385

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
911
Passed By
6110
Net Change
-5199
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13944
5K → 10K601063-1003#13944#14947
10K → 15K108439-331#14947#15278
15K → 20K191140-1121#15278#16399
20K → HALF1978-977#16399#17376
HALF → 25K48403-355#17376#17731
25K → 30K92535-443#17731#18174
30K → 20M10783-773#18174#18947
20M → 21M8891-3#18947#18950
21M → 35K13248-235#18950#19185
35K → 23M2684+264#19185#18921
23M → 24M8944+45#18921#18876
24M → 40K8827+61#18876#18815
40K → 25.2M1174-63#18815#18878
25.2M → FINISH16281-265#18878#19143
TOTALS9116110-5199
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing