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BOSTON MARATHON 2023

Yutsai Hsu

Bib: 21870•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:32
Rank: #17838
Start → 5K
26:32 | 8:32/mi
10K· 6.21 mi
53:55
Rank: #18979 (-1141)
5K → 10K
27:23 | 8:49/mi
15K· 9.32 mi
1:21:16
Rank: #19148 (-169)
10K → 15K
27:21 | 8:48/mi
20K· 12.43 mi
1:50:22
Rank: #19758 (-610)
15K → 20K
29:06 | 9:22/mi
Half· 13.11 mi
1:57:06
Rank: #20043 (-285)
20K → Half
6:44 | 9:52/mi
25K· 15.53 mi
2:21:35
Rank: #20620 (-577)
Half → 25K
24:29 | 10:06/mi
30K· 18.64 mi
2:53:27
Rank: #20840 (-220)
25K → 30K
31:52 | 10:15/mi
20M
3:07:51
Rank: #20927 (-87)
30K → 20M
14:24 | 10:36/mi
21M
3:20:06
Rank: #21129 (-202)
20M → 21M
12:15 | 12:15/mi
35K· 21.75 mi
3:29:12
Rank: #21351 (-222)
21M → 35K
9:06 | 12:10/mi
23M
3:42:48
Rank: #21409 (-58)
35K → 23M
13:36 | 10:52/mi
24M
3:53:15
Rank: #21432 (-23)
23M → 24M
10:27 | 10:27/mi
40K· 24.85 mi
4:02:10
Rank: #21421 (+11)
24M → 40K
8:55 | 10:26/mi
25.2M
4:06:02
Rank: #21412 (+9)
40K → 25.2M
3:52 | 11:13/mi
Finish· 26.22 mi
4:16:42
Rank: #21481 (-69)
25.2M → Finish
10:40 | 10:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:06
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:19:36
Pace10:39 /mi
📊Positive Split: 19.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3426:328:3226:32
8:32
-
10K
6.21 mi11:47:5753:558:4127:23
8:49
+0:17
15K
9.32 mi12:15:181:21:168:4327:21
8:48
-0:01
20K
12.43 mi12:44:241:50:228:5329:06
9:22
+0:34
Half
13.11 mi12:51:081:57:068:566:44
9:52
+0:30
25K
15.53 mi13:15:372:21:359:0724:29
10:06
+0:14
30K
18.64 mi13:47:292:53:279:1831:52
10:15
+0:09
20M
20.00 mi14:01:533:07:519:2414:24
10:36
+0:21
21M
21.00 mi14:14:083:20:069:3212:15
12:15
+1:39
35K
21.75 mi14:23:143:29:129:379:06
12:10
-0:05
23M
23.00 mi14:36:503:42:489:4113:36
10:52
-1:18
24M
24.00 mi14:47:173:53:159:4310:27
10:27
-0:25
40K
24.85 mi14:56:124:02:109:458:55
10:26
-0:01
25.2M
25.20 mi15:00:044:06:029:463:52
11:13
+0:47
Finish
26.22 mi15:10:444:16:429:4810:40
10:28
-0:45

Checkpoints & Pacing

📈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

8:32 /mi

Average Pace

9:48 /mi

Slowest Pace

12:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:06

46% of race

Time at Steady Pace

1:54:23

45% of race

Time at Slower Pace

25:13

10% of race

Average Pace: 9:47 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:20:3426:328:3226:32
8:32
#17838
10K
6.21 mi11:47:5753:558:4127:23
8:49
#18979
15K
9.32 mi12:15:181:21:168:4327:21
8:48
#19148
20K
12.43 mi12:44:241:50:228:5329:06
9:22
#19758
Half
13.11 mi12:51:081:57:068:566:44
9:52
#20043
25K
15.53 mi13:15:372:21:359:0724:29
10:06
#20620
30K
18.64 mi13:47:292:53:279:1831:52
10:15
#20840
20M
20.00 mi14:01:533:07:519:2414:24
10:36
#20927
21M
21.00 mi14:14:083:20:069:3212:15
12:15
#21129
35K
21.75 mi14:23:143:29:129:379:06
12:10
#21351
23M
23.00 mi14:36:503:42:489:4113:36
10:52
#21409
24M
24.00 mi14:47:173:53:159:4310:27
10:27
#21432
40K
24.85 mi14:56:124:02:109:458:55
10:26
#21421
25.2M
25.20 mi15:00:044:06:029:463:52
11:13
#21412
Finish
26.22 mi15:10:444:16:429:4810:40
10:28
#21481
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17838113741137419530(Top 73%)12108(Top 80%)12108(Top 1091%)
10K6.21 mi3.10 mi18979-114111823-44911823-44920001(Top 75%)12283(Top 81%)12283(Top 1107%)
15K9.32 mi3.11 mi19148-16911906-8311906-8319530(Top 73%)12108(Top 80%)12108(Top 1091%)
20K12.43 mi3.11 mi19758-61012160-25412160-25421145(Top 79%)12810(Top 84%)12810(Top 1154%)
Half13.11 mi0.68 mi20043-28512277-11712277-11722999(Top 86%)13621(Top 90%)13621(Top 1227%)
25K15.53 mi2.42 mi20620-57712549-27212549-27222422(Top 84%)13326(Top 88%)13326(Top 1201%)
30K18.64 mi3.11 mi20840-22012638-8912638-8921669(Top 81%)12927(Top 85%)12927(Top 1165%)
20M20.00 mi1.36 mi20927-8712653-1512653-1521939(Top 82%)12975(Top 85%)12975(Top 1169%)
21M21.00 mi1.00 mi21129-20212718-6512718-6523122(Top 87%)13490(Top 89%)13490(Top 1215%)
35K21.75 mi0.75 mi21351-22212824-10612824-10624841(Top 93%)14237(Top 94%)14237(Top 1283%)
23M23.00 mi1.25 mi21409-5812836-1212836-1222074(Top 83%)12942(Top 85%)12942(Top 1166%)
24M24.00 mi1.00 mi21432-23128361283621909(Top 82%)12831(Top 85%)12831(Top 1156%)
40K24.85 mi0.85 mi21421+1112818+1812818+1821034(Top 79%)12386(Top 82%)12386(Top 1116%)
25.2M25.20 mi0.35 mi21412+912810+812810+820921(Top 79%)12354(Top 81%)12354(Top 1113%)
Finish26.22 mi1.02 mi21481-6912834-2412834-2422927(Top 86%)13287(Top 88%)13287(Top 1197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19530

Males

12108

M60-64

12108

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

20001

Males

12283

M60-64

12283

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19530

Males

12108

M60-64

12108

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

21145

Males

12810

M60-64

12810

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

22999

Males

13621

M60-64

13621

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

22422

Males

13326

M60-64

13326

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

21669

Males

12927

M60-64

12927

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21939

Males

12975

M60-64

12975

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

23122

Males

13490

M60-64

13490

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

24841

Males

14237

M60-64

14237

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22074

Males

12942

M60-64

12942

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21909

Males

12831

M60-64

12831

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21034

Males

12386

M60-64

12386

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

20921

Males

12354

M60-64

12354

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22927

Males

13287

M60-64

13287

Passing Analysis

Category:
Athletes Passed
575
Passed By
4218
Net Change
-3643
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17838
5K → 10K591200-1141#17838#18979
10K → 15K116285-169#18979#19148
15K → 20K44654-610#19148#19758
20K → Half5290-285#19758#20043
Half → 25K14591-577#20043#20620
25K → 30K86306-220#20620#20840
30K → 20M50137-87#20840#20927
20M → 21M14216-202#20927#21129
21M → 35K6228-222#21129#21351
35K → 23M53111-58#21351#21409
23M → 24M3356-23#21409#21432
24M → 40K5039+11#21432#21421
40K → 25.2M2415+9#21421#21412
25.2M → Finish2190-69#21412#21481
TOTALS5754218-3643
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing