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BOSTON MARATHON 2023

Hsienwei Shao

Bib: 5977•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 42%
Masters (Masters Men)
#0 / 9891
Top 29%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:33
Rank: #5846
Start → 5K
21:33 | 6:56/mi
10K· 6.21 mi
42:59
Rank: #5954 (-108)
5K → 10K
21:26 | 6:54/mi
15K· 9.32 mi
1:04:46
Rank: #6188 (-234)
10K → 15K
21:47 | 7:01/mi
20K· 12.43 mi
1:27:30
Rank: #6584 (-396)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:32:17
Rank: #6589 (-5)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:49:41
Rank: #6559 (+30)
Half → 25K
17:24 | 7:11/mi
30K· 18.64 mi
2:13:06
Rank: #6623 (-64)
25K → 30K
23:25 | 7:32/mi
20M
2:23:28
Rank: #6668 (-45)
30K → 20M
10:22 | 7:38/mi
21M
2:31:55
Rank: #6784 (-116)
20M → 21M
8:27 | 8:27/mi
35K· 21.75 mi
2:37:38
Rank: #6832 (-48)
21M → 35K
5:43 | 7:38/mi
23M
2:47:52
Rank: #6985 (-153)
35K → 23M
10:14 | 8:10/mi
24M
2:55:29
Rank: #7021 (-36)
23M → 24M
7:37 | 7:37/mi
40K· 24.85 mi
3:02:39
Rank: #7191 (-170)
24M → 40K
7:10 | 8:23/mi
25.2M
3:05:42
Rank: #7241 (-50)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:14:18
Rank: #7529 (-288)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:17
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:42:01
Pace7:47 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2821:336:5621:33
6:56
-
10K
6.21 mi10:45:5442:596:5521:26
6:54
-0:02
15K
9.32 mi11:07:411:04:466:5721:47
7:01
+0:07
20K
12.43 mi11:30:251:27:307:0222:44
7:19
+0:18
Half
13.11 mi11:35:121:32:177:024:47
7:01
-0:18
25K
15.53 mi11:52:361:49:417:0417:24
7:11
+0:10
30K
18.64 mi12:16:012:13:067:0823:25
7:32
+0:21
20M
20.00 mi12:26:232:23:287:1010:22
7:38
+0:06
21M
21.00 mi12:34:502:31:557:148:27
8:27
+0:49
35K
21.75 mi12:40:332:37:387:155:43
7:38
-0:49
23M
23.00 mi12:50:472:47:527:1810:14
8:10
+0:32
24M
24.00 mi12:58:242:55:297:197:37
7:37
-0:33
40K
24.85 mi13:05:343:02:397:217:10
8:23
+0:46
25.2M
25.20 mi13:08:373:05:427:223:03
8:51
+0:28
Finish
26.22 mi13:17:133:14:187:258:36
8:26
-0:25

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

6:54 /mi

Average Pace

7:25 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:57

45% of race

Time at Steady Pace

1:09:51

36% of race

Time at Slower Pace

37:30

19% of race

Average Pace: 7:25 /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 mi10:24:2821:336:5621:33
6:56
#5846
10K
6.21 mi10:45:5442:596:5521:26
6:54
#5954
15K
9.32 mi11:07:411:04:466:5721:47
7:01
#6188
20K
12.43 mi11:30:251:27:307:0222:44
7:19
#6584
Half
13.11 mi11:35:121:32:177:024:47
7:01
#6589
25K
15.53 mi11:52:361:49:417:0417:24
7:11
#6559
30K
18.64 mi12:16:012:13:067:0823:25
7:32
#6623
20M
20.00 mi12:26:232:23:287:1010:22
7:38
#6668
21M
21.00 mi12:34:502:31:557:148:27
8:27
#6784
35K
21.75 mi12:40:332:37:387:155:43
7:38
#6832
23M
23.00 mi12:50:472:47:527:1810:14
8:10
#6985
24M
24.00 mi12:58:242:55:297:197:37
7:37
#7021
40K
24.85 mi13:05:343:02:397:217:10
8:23
#7191
25.2M
25.20 mi13:08:373:05:427:223:03
8:51
#7241
Finish
26.22 mi13:17:133:14:187:258:36
8:26
#7529
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5846536253626627(Top 25%)5957(Top 39%)5957(Top 266%)
10K6.21 mi3.10 mi5954-1085449-875449-876123(Top 23%)5557(Top 37%)5557(Top 248%)
15K9.32 mi3.11 mi6188-2345625-1765625-1766627(Top 25%)5957(Top 39%)5957(Top 266%)
20K12.43 mi3.11 mi6584-3965924-2995924-2997903(Top 30%)6821(Top 45%)6821(Top 304%)
Half13.11 mi0.68 mi6589-5592459246611(Top 25%)5951(Top 39%)5951(Top 266%)
25K15.53 mi2.42 mi6559+305899+255899+256542(Top 25%)5832(Top 38%)5832(Top 260%)
30K18.64 mi3.11 mi6623-645933-345933-347465(Top 28%)6363(Top 42%)6363(Top 284%)
20M20.00 mi1.36 mi6668-455952-195952-197665(Top 29%)6381(Top 42%)6381(Top 285%)
21M21.00 mi1.00 mi6784-1166032-806032-8010141(Top 38%)7671(Top 51%)7671(Top 342%)
35K21.75 mi0.75 mi6832-486064-326064-329503(Top 36%)7340(Top 48%)7340(Top 328%)
23M23.00 mi1.25 mi6985-1536137-736137-7310946(Top 41%)7927(Top 52%)7927(Top 354%)
24M24.00 mi1.00 mi7021-366146-96146-98484(Top 32%)6596(Top 43%)6596(Top 294%)
40K24.85 mi0.85 mi7191-1706252-1066252-10612548(Top 47%)8556(Top 56%)8556(Top 382%)
25.2M25.20 mi0.35 mi7241-506272-206272-2011482(Top 43%)7996(Top 53%)7996(Top 357%)
Finish26.22 mi1.02 mi7529-2886437-1656437-16514950(Top 56%)9692(Top 64%)9692(Top 432%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6627

Males

5957

M40-44

5957

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6123

Males

5557

M40-44

5557

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6627

Males

5957

M40-44

5957

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7903

Males

6821

M40-44

6821

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6611

Males

5951

M40-44

5951

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6542

Males

5832

M40-44

5832

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7465

Males

6363

M40-44

6363

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

7665

Males

6381

M40-44

6381

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10141

Males

7671

M40-44

7671

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9503

Males

7340

M40-44

7340

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

10946

Males

7927

M40-44

7927

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8484

Males

6596

M40-44

6596

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12548

Males

8556

M40-44

8556

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11482

Males

7996

M40-44

7996

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14950

Males

9692

M40-44

9692

Passing Analysis

Category:
Athletes Passed
655
Passed By
2338
Net Change
-1683
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5846
5K → 10K144252-108#5846#5954
10K → 15K44278-234#5954#6188
15K → 20K24420-396#6188#6584
20K → Half2227-5#6584#6589
Half → 25K8757+30#6589#6559
25K → 30K95159-64#6559#6623
30K → 20M4792-45#6623#6668
20M → 21M37153-116#6668#6784
21M → 35K2270-48#6784#6832
35K → 23M41194-153#6832#6985
23M → 24M4480-36#6985#7021
24M → 40K18188-170#7021#7191
40K → 25.2M1767-50#7191#7241
25.2M → Finish13301-288#7241#7529
TOTALS6552338-1683
📊

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