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BOSTON MARATHON 2026

Yiyung Liu

Bib: 29814•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 (M40-44)
#0 / 2198
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
25:59
3.11 mi
Rank: #19276
Start → 5K
25:59 | 8:22/mi
10K
52:32
6.21 mi
Rank: #19902 (-626)
5K → 10K
26:33 | 8:33/mi
15K
1:18:15
9.32 mi
Rank: #19560 (+342)
10K → 15K
25:43 | 8:17/mi
20K
1:44:27
12.43 mi
Rank: #19392 (+168)
15K → 20K
26:12 | 8:26/mi
HALF
1:50:03
13.11 mi
Rank: #19354 (+38)
20K → HALF
5:36 | 8:13/mi
25K
2:11:10
15.53 mi
Rank: #19413 (-59)
HALF → 25K
21:07 | 8:43/mi
30K
2:38:39
18.64 mi
Rank: #19281 (+132)
25K → 30K
27:29 | 8:51/mi
20M
2:51:01
20.00 mi
Rank: #19282 (-1)
30K → 20M
12:22 | 9:07/mi
21M
3:00:38
21.00 mi
Rank: #19253 (+29)
20M → 21M
9:37 | 9:37/mi
35K
3:07:10
21.75 mi
Rank: #19218 (+35)
21M → 35K
6:32 | 8:44/mi
23M
3:18:29
23.00 mi
Rank: #19217 (+1)
35K → 23M
11:19 | 9:03/mi
24M
3:27:21
24.00 mi
Rank: #19191 (+26)
23M → 24M
8:52 | 8:52/mi
40K
3:34:52
24.85 mi
Rank: #19112 (+79)
24M → 40K
7:31 | 8:48/mi
25.2M
3:38:06
25.20 mi
Rank: #19072 (+40)
40K → 25.2M
3:14 | 9:23/mi
FINISH
3:47:11
26.22 mi
Rank: #19121 (-49)
25.2M → FINISH
9:05 | 8:55/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:50:03
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time1:57:08
Pace8:57 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:4825:598:2225:59
8:22
-
10K
6.21 mi12:18:2152:328:2826:33
8:33
+0:11
15K
9.32 mi12:44:041:18:158:2425:43
8:17
-0:16
20K
12.43 mi13:10:161:44:278:2526:12
8:26
+0:09
HALF
13.11 mi13:15:521:50:038:245:36
8:13
-0:13
25K
15.53 mi13:36:592:11:108:2721:07
8:43
+0:30
30K
18.64 mi14:04:282:38:398:3127:29
8:51
+0:08
20M
20.00 mi14:16:502:51:018:3412:22
9:07
+0:16
21M
21.00 mi14:26:273:00:388:379:37
9:37
+0:30
35K
21.75 mi14:32:593:07:108:376:32
8:44
-0:53
23M
23.00 mi14:44:183:18:298:3811:19
9:03
+0:19
24M
24.00 mi14:53:103:27:218:398:52
8:52
-0:11
40K
24.85 mi15:00:413:34:528:397:31
8:48
-0:04
25.2M
25.20 mi15:03:553:38:068:403:14
9:23
+0:35
FINISH
26.22 mi15:13:003:47:118:419:05
8:55
-0:28

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

8:13 /mi

Average Pace

8:40 /mi

Slowest Pace

9:37 /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

3:10:39

84% of race

Time at Steady Pace

36:32

16% of race

Time at Slower Pace

0:00

0% 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 mi11:51:4825:598:2225:59
8:22
#19276
10K
6.21 mi12:18:2152:328:2826:33
8:33
#19902
15K
9.32 mi12:44:041:18:158:2425:43
8:17
#19560
20K
12.43 mi13:10:161:44:278:2526:12
8:26
#19392
HALF
13.11 mi13:15:521:50:038:245:36
8:13
#19354
25K
15.53 mi13:36:592:11:108:2721:07
8:43
#19413
30K
18.64 mi14:04:282:38:398:3127:29
8:51
#19281
20M
20.00 mi14:16:502:51:018:3412:22
9:07
#19282
21M
21.00 mi14:26:273:00:388:379:37
9:37
#19253
35K
21.75 mi14:32:593:07:108:376:32
8:44
#19218
23M
23.00 mi14:44:183:18:298:3811:19
9:03
#19217
24M
24.00 mi14:53:103:27:218:398:52
8:52
#19191
40K
24.85 mi15:00:413:34:528:397:31
8:48
#19112
25.2M
25.20 mi15:03:553:38:068:403:14
9:23
#19072
FINISH
26.22 mi15:13:003:47:118:419:05
8:55
#19121
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi19276119561195618833(Top 65%)11813(Top 72%)11813(Top 537%)
10K6.21 mi3.10 mi19902-62612254-29812254-29820581(Top 71%)12588(Top 77%)12588(Top 573%)
15K9.32 mi3.11 mi19560+34212113+14112113+14118833(Top 65%)11813(Top 72%)11813(Top 537%)
20K12.43 mi3.11 mi19392+16812026+8712026+8718908(Top 65%)11808(Top 72%)11808(Top 537%)
HALF13.11 mi0.68 mi19354+3812012+1412012+1418465(Top 64%)11651(Top 71%)11651(Top 530%)
25K15.53 mi2.42 mi19413-5912032-2012032-2019747(Top 68%)12139(Top 74%)12139(Top 552%)
30K18.64 mi3.11 mi19281+13211934+9811934+9818800(Top 65%)11617(Top 71%)11617(Top 529%)
20M20.00 mi1.36 mi19282-111920+1411920+1419409(Top 67%)11842(Top 72%)11842(Top 539%)
21M21.00 mi1.00 mi19253+2911902+1811902+1819024(Top 66%)11615(Top 71%)11615(Top 528%)
35K21.75 mi0.75 mi19218+3511872+3011872+3018768(Top 65%)11409(Top 70%)11409(Top 519%)
23M23.00 mi1.25 mi19217+111841+3111841+3118687(Top 64%)11304(Top 69%)11304(Top 514%)
24M24.00 mi1.00 mi19191+2611808+3311808+3318841(Top 65%)11337(Top 69%)11337(Top 516%)
40K24.85 mi0.85 mi19112+7911754+5411754+5417337(Top 60%)10584(Top 65%)10584(Top 482%)
25.2M25.20 mi0.35 mi19072+4011733+2111733+2116703(Top 58%)10311(Top 63%)10311(Top 469%)
FINISH26.22 mi1.02 mi19121-4911745-1211745-1220138(Top 69%)11913(Top 73%)11913(Top 542%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

18833

Males

11813

M40-44

11813

5K→10K

3.1 - 6.2 mi

Top 71%
×5
+79ft-138ft

Overall

20581

Males

12588

M40-44

12588

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

18833

Males

11813

M40-44

11813

15K→20K

9.3 - 12.4 mi

Top 65%
×5
+106ft-86ft

Overall

18908

Males

11808

M40-44

11808

20K→HALF

12.4 - 13.1 mi

Top 64%
×2
+19ft-37ft

Overall

18465

Males

11651

M40-44

11651

HALF→25K

13.1 - 15.5 mi

Top 68%
×4
+66ft-88ft

Overall

19747

Males

12139

M40-44

12139

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18800

Males

11617

M40-44

11617

30K→20M

18.6 - 20.0 mi

Top 67%
×5
+64ft-50ft

Overall

19409

Males

11842

M40-44

11842

20M→21M

20.0 - 21.0 mi

Top 66%
×8
+106ft-24ft

Overall

19024

Males

11615

M40-44

11615

21M→35K

21.0 - 21.8 mi

Top 65%
×7
+17ft-86ft

Overall

18768

Males

11409

M40-44

11409

35K→23M

21.8 - 23.0 mi

Top 64%
×5
+23ft-63ft

Overall

18687

Males

11304

M40-44

11304

23M→24M

23.0 - 24.0 mi

Top 65%
×6
+12ft-82ft

Overall

18841

Males

11337

M40-44

11337

24M→40K

24.0 - 24.9 mi

Top 60%
×1
+6ft-20ft

Overall

17337

Males

10584

M40-44

10584

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1
+13ft-16ft

Overall

16703

Males

10311

M40-44

10311

25.2M→FINISH

25.2 - 26.2 mi

Top 69%
×2
+22ft-21ft

Overall

20138

Males

11913

M40-44

11913

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1723*
Passed By
1061
Net Change
+155
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19276
5K → 10K81200-626#19276#19902
10K → 15K393*51+342#19902#19560
15K → 20K225*57+168#19560#19392
20K → HALF4911+38#19392#19354
HALF → 25K104163-59#19354#19413
25K → 30K253*121+132#19413#19281
30K → 20M9293-1#19281#19282
20M → 21M9364+29#19282#19253
21M → 35K6732+35#19253#19218
35K → 23M9190+1#19218#19217
23M → 24M8559+26#19217#19191
24M → 40K9819+79#19191#19112
40K → 25.2M488+40#19112#19072
25.2M → FINISH4493-49#19072#19121
TOTALS1723*1061+155

* 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

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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