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BOSTON MARATHON 2026

Shuiwen Liu

Bib: 13890•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
22:45
3.11 mi
Rank: #11241
Start → 5K
22:45 | 7:20/mi
10K
45:58
6.21 mi
Rank: #11946 (-705)
5K → 10K
23:13 | 7:29/mi
15K
1:11:48
9.32 mi
Rank: #14574 (-2628)
10K → 15K
25:50 | 8:19/mi
20K
1:36:14
12.43 mi
Rank: #14660 (-86)
15K → 20K
24:26 | 7:52/mi
HALF
1:42:16
13.11 mi
Rank: #15191 (-531)
20K → HALF
6:02 | 8:52/mi
25K
2:01:34
15.53 mi
Rank: #15134 (+57)
HALF → 25K
19:18 | 7:58/mi
30K
2:27:15
18.64 mi
Rank: #15180 (-46)
25K → 30K
25:41 | 8:16/mi
20M
2:38:50
20.00 mi
Rank: #15269 (-89)
30K → 20M
11:35 | 8:32/mi
21M
2:48:04
21.00 mi
Rank: #15391 (-122)
20M → 21M
9:14 | 9:14/mi
35K
2:54:16
21.75 mi
Rank: #15402 (-11)
21M → 35K
6:12 | 8:18/mi
23M
3:05:04
23.00 mi
Rank: #15485 (-83)
35K → 23M
10:48 | 8:38/mi
24M
3:13:11
24.00 mi
Rank: #15443 (+42)
23M → 24M
8:07 | 8:07/mi
40K
3:20:09
24.85 mi
Rank: #15345 (+98)
24M → 40K
6:58 | 8:09/mi
25.2M
3:23:13
25.20 mi
Rank: #15328 (+17)
40K → 25.2M
3:04 | 8:54/mi
FINISH
3:31:03
26.22 mi
Rank: #15233 (+95)
25.2M → FINISH
7:50 | 7:42/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:42:16
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:48:47
Pace8:18 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5022:457:2022:45
7:20
-
10K
6.21 mi11:15:0345:587:2423:13
7:29
+0:09
15K
9.32 mi11:40:531:11:487:4325:50
8:19
+0:50
20K
12.43 mi12:05:191:36:147:4524:26
7:52
-0:27
HALF
13.11 mi12:11:211:42:167:496:02
8:52
+1:00
25K
15.53 mi12:30:392:01:347:5019:18
7:58
-0:54
30K
18.64 mi12:56:202:27:157:5425:41
8:16
+0:18
20M
20.00 mi13:07:552:38:507:5711:35
8:32
+0:16
21M
21.00 mi13:17:092:48:048:019:14
9:14
+0:42
35K
21.75 mi13:23:212:54:168:016:12
8:18
-0:56
23M
23.00 mi13:34:093:05:048:0310:48
8:38
+0:20
24M
24.00 mi13:42:163:13:118:038:07
8:07
-0:31
40K
24.85 mi13:49:143:20:098:046:58
8:09
+0:02
25.2M
25.20 mi13:52:183:23:138:043:04
8:54
+0:45
FINISH
26.22 mi14:00:083:31:038:047:50
7:42
-1:12

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

7:20 /mi

Average Pace

8:03 /mi

Slowest Pace

9:14 /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

1:37:32

46% of race

Time at Steady Pace

1:12:48

34% of race

Time at Slower Pace

40:43

19% of race

Average Pace: 8:03 /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 mi10:51:5022:457:2022:45
7:20
#11241
10K
6.21 mi11:15:0345:587:2423:13
7:29
#11946
15K
9.32 mi11:40:531:11:487:4325:50
8:19
#14574
20K
12.43 mi12:05:191:36:147:4524:26
7:52
#14660
HALF
13.11 mi12:11:211:42:167:496:02
8:52
#15191
25K
15.53 mi12:30:392:01:347:5019:18
7:58
#15134
30K
18.64 mi12:56:202:27:157:5425:41
8:16
#15180
20M
20.00 mi13:07:552:38:507:5711:35
8:32
#15269
21M
21.00 mi13:17:092:48:048:019:14
9:14
#15391
35K
21.75 mi13:23:212:54:168:016:12
8:18
#15402
23M
23.00 mi13:34:093:05:048:0310:48
8:38
#15485
24M
24.00 mi13:42:163:13:118:038:07
8:07
#15443
40K
24.85 mi13:49:143:20:098:046:58
8:09
#15345
25.2M
25.20 mi13:52:183:23:138:043:04
8:54
#15328
FINISH
26.22 mi14:00:083:31:038:047:50
7:42
#15233
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 mi112418712871219050(Top 66%)11899(Top 73%)11899(Top 637%)
10K6.21 mi3.10 mi11946-7058993-2818993-28112685(Top 44%)9277(Top 57%)9277(Top 497%)
15K9.32 mi3.11 mi14574-262810045-105210045-105219050(Top 66%)11899(Top 73%)11899(Top 637%)
20K12.43 mi3.11 mi14660-8610074-2910074-2915034(Top 52%)10154(Top 62%)10154(Top 544%)
HALF13.11 mi0.68 mi15191-53110264-19010264-19021997(Top 76%)13255(Top 81%)13255(Top 710%)
25K15.53 mi2.42 mi15134+5710232+3210232+3215070(Top 52%)10103(Top 62%)10103(Top 541%)
30K18.64 mi3.11 mi15180-4610206+2610206+2615384(Top 53%)10141(Top 62%)10141(Top 543%)
20M20.00 mi1.36 mi15269-8910221-1510221-1516343(Top 56%)10444(Top 64%)10444(Top 559%)
21M21.00 mi1.00 mi15391-12210244-2310244-2317288(Top 60%)10802(Top 66%)10802(Top 578%)
35K21.75 mi0.75 mi15402-1110236+810236+816313(Top 56%)10321(Top 63%)10321(Top 553%)
23M23.00 mi1.25 mi15485-8310243-710243-716467(Top 57%)10284(Top 63%)10284(Top 551%)
24M24.00 mi1.00 mi15443+4210208+3510208+3514524(Top 50%)9397(Top 58%)9397(Top 503%)
40K24.85 mi0.85 mi15345+9810152+5610152+5613431(Top 46%)8811(Top 54%)8811(Top 472%)
25.2M25.20 mi0.35 mi15328+1710138+1410138+1414024(Top 48%)9068(Top 55%)9068(Top 485%)
FINISH26.22 mi1.02 mi15233+9510091+4710091+4712869(Top 44%)8514(Top 52%)8514(Top 456%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19050

Males

11899

M50-54

11899

5K→10K

3.1 - 6.2 mi

Top 44%
×5
+79ft-138ft

Overall

12685

Males

9277

M50-54

9277

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19050

Males

11899

M50-54

11899

15K→20K

9.3 - 12.4 mi

Top 52%
×5
+106ft-86ft

Overall

15034

Males

10154

M50-54

10154

20K→HALF

12.4 - 13.1 mi

Top 76%
×2
+19ft-37ft

Overall

21997

Males

13255

M50-54

13255

HALF→25K

13.1 - 15.5 mi

Top 52%
×4
+66ft-88ft

Overall

15070

Males

10103

M50-54

10103

25K→30K

15.5 - 18.6 mi

Top 53%
×9
+181ft-148ft

Overall

15384

Males

10141

M50-54

10141

30K→20M

18.6 - 20.0 mi

Top 56%
×5
+64ft-50ft

Overall

16343

Males

10444

M50-54

10444

20M→21M

20.0 - 21.0 mi

Top 60%
×8
+106ft-24ft

Overall

17288

Males

10802

M50-54

10802

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16313

Males

10321

M50-54

10321

35K→23M

21.8 - 23.0 mi

Top 57%
×5
+23ft-63ft

Overall

16467

Males

10284

M50-54

10284

23M→24M

23.0 - 24.0 mi

Top 50%
×6
+12ft-82ft

Overall

14524

Males

9397

M50-54

9397

24M→40K

24.0 - 24.9 mi

Top 46%
×1
+6ft-20ft

Overall

13431

Males

8811

M50-54

8811

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1
+13ft-16ft

Overall

14024

Males

9068

M50-54

9068

25.2M→FINISH

25.2 - 26.2 mi

Top 44%
×2
+22ft-21ft

Overall

12869

Males

8514

M50-54

8514

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1213
Passed By
5204
Net Change
-3992
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11241
5K → 10K68772-705#11241#11946
10K → 15K92637-2628#11946#14574
15K → 20K140226-86#14574#14660
20K → HALF1532-531#14660#15191
HALF → 25K161104+57#15191#15134
25K → 30K186232-46#15134#15180
30K → 20M85174-89#15180#15269
20M → 21M72194-122#15269#15391
21M → 35K6374-11#15391#15402
35K → 23M71154-83#15402#15485
23M → 24M8442+42#15485#15443
24M → 40K11618+98#15443#15345
40K → 25.2M3720+17#15345#15328
25.2M → FINISH12025+95#15328#15233
TOTALS12135204-3992
📊

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