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BOSTON MARATHON 2023

Kuo Chao Hsia

Bib: 18637•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:48
Rank: #13889
Start → 5K
24:48 | 7:59/mi
10K· 6.21 mi
50:18
Rank: #15077 (-1188)
5K → 10K
25:30 | 8:12/mi
15K· 9.32 mi
1:16:15
Rank: #15676 (-599)
10K → 15K
25:57 | 8:21/mi
20K· 12.43 mi
1:42:52
Rank: #16100 (-424)
15K → 20K
26:37 | 8:34/mi
Half· 13.11 mi
1:48:37
Rank: #16170 (-70)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:09:44
Rank: #16420 (-250)
Half → 25K
21:07 | 8:43/mi
30K· 18.64 mi
2:42:12
Rank: #17986 (-1566)
25K → 30K
32:28 | 10:27/mi
20M
2:56:25
Rank: #18448 (-462)
30K → 20M
14:13 | 10:28/mi
21M
3:07:21
Rank: #18646 (-198)
20M → 21M
10:56 | 10:56/mi
35K· 21.75 mi
3:14:31
Rank: #18714 (-68)
21M → 35K
7:10 | 9:35/mi
23M
3:27:49
Rank: #19007 (-293)
35K → 23M
13:18 | 10:37/mi
24M
3:38:01
Rank: #19154 (-147)
23M → 24M
10:12 | 10:12/mi
40K· 24.85 mi
3:46:34
Rank: #19212 (-58)
24M → 40K
8:33 | 10:00/mi
25.2M
3:50:12
Rank: #19217 (-5)
40K → 25.2M
3:38 | 10:32/mi
Finish· 26.22 mi
3:59:26
Rank: #19209 (+8)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:37
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:10:49
Pace9:59 /mi
📊Positive Split: 20.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3324:487:5924:48
7:59
-
10K
6.21 mi11:47:0350:188:0625:30
8:12
+0:13
15K
9.32 mi12:13:001:16:158:1125:57
8:21
+0:09
20K
12.43 mi12:39:371:42:528:1726:37
8:34
+0:13
Half
13.11 mi12:45:221:48:378:175:45
8:26
-0:08
25K
15.53 mi13:06:292:09:448:2121:07
8:43
+0:17
30K
18.64 mi13:38:572:42:128:4232:28
10:27
+1:44
20M
20.00 mi13:53:102:56:258:4914:13
10:28
+0:01
21M
21.00 mi14:04:063:07:218:5510:56
10:56
+0:28
35K
21.75 mi14:11:163:14:318:577:10
9:35
-1:21
23M
23.00 mi14:24:343:27:499:0213:18
10:37
+1:02
24M
24.00 mi14:34:463:38:019:0510:12
10:12
-0:25
40K
24.85 mi14:43:193:46:349:078:33
10:00
-0:12
25.2M
25.20 mi14:46:573:50:129:083:38
10:32
+0:32
Finish
26.22 mi14:56:113:59:269:089:14
9:04
-1:28

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

7:59 /mi

Average Pace

9:08 /mi

Slowest Pace

10:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:58

58% of race

Time at Steady Pace

15:43

7% of race

Time at Slower Pace

1:24:45

35% of race

Average Pace: 9:08 /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 mi11:21:3324:487:5924:48
7:59
#13889
10K
6.21 mi11:47:0350:188:0625:30
8:12
#15077
15K
9.32 mi12:13:001:16:158:1125:57
8:21
#15676
20K
12.43 mi12:39:371:42:528:1726:37
8:34
#16100
Half
13.11 mi12:45:221:48:378:175:45
8:26
#16170
25K
15.53 mi13:06:292:09:448:2121:07
8:43
#16420
30K
18.64 mi13:38:572:42:128:4232:28
10:27
#17986
20M
20.00 mi13:53:102:56:258:4914:13
10:28
#18448
21M
21.00 mi14:04:063:07:218:5510:56
10:56
#18646
35K
21.75 mi14:11:163:14:318:577:10
9:35
#18714
23M
23.00 mi14:24:343:27:499:0213:18
10:37
#19007
24M
24.00 mi14:34:463:38:019:0510:12
10:12
#19154
40K
24.85 mi14:43:193:46:349:078:33
10:00
#19212
25.2M
25.20 mi14:46:573:50:129:083:38
10:32
#19217
Finish
26.22 mi14:56:113:59:269:089:14
9:04
#19209
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi138899915991516861(Top 63%)11014(Top 73%)11014(Top 775%)
10K6.21 mi3.10 mi15077-118810364-44910364-44916309(Top 61%)10833(Top 71%)10833(Top 762%)
15K9.32 mi3.11 mi15676-59910576-21210576-21216861(Top 63%)11014(Top 73%)11014(Top 775%)
20K12.43 mi3.11 mi16100-42410715-13910715-13917275(Top 65%)11167(Top 74%)11167(Top 785%)
Half13.11 mi0.68 mi16170-7010737-2210737-2217290(Top 65%)11221(Top 74%)11221(Top 789%)
25K15.53 mi2.42 mi16420-25010809-7210809-7217423(Top 65%)11168(Top 74%)11168(Top 785%)
30K18.64 mi3.11 mi17986-156611410-60111410-60122104(Top 83%)13122(Top 86%)13122(Top 923%)
20M20.00 mi1.36 mi18448-46211589-17911589-17921632(Top 81%)12837(Top 85%)12837(Top 903%)
21M21.00 mi1.00 mi18646-19811670-8111670-8120665(Top 78%)12369(Top 82%)12369(Top 870%)
35K21.75 mi0.75 mi18714-6811687-1711687-1720070(Top 75%)12071(Top 80%)12071(Top 849%)
23M23.00 mi1.25 mi19007-29311798-11111798-11121599(Top 81%)12726(Top 84%)12726(Top 895%)
24M24.00 mi1.00 mi19154-14711854-5611854-5621316(Top 80%)12556(Top 83%)12556(Top 883%)
40K24.85 mi0.85 mi19212-5811874-2011874-2019944(Top 75%)11891(Top 78%)11891(Top 836%)
25.2M25.20 mi0.35 mi19217-511872+211872+219187(Top 72%)11559(Top 76%)11559(Top 813%)
Finish26.22 mi1.02 mi19209+811860+1211860+1218270(Top 69%)11203(Top 74%)11203(Top 788%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16861

Males

11014

M55-59

11014

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16309

Males

10833

M55-59

10833

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16861

Males

11014

M55-59

11014

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

17275

Males

11167

M55-59

11167

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17290

Males

11221

M55-59

11221

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

17423

Males

11168

M55-59

11168

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

22104

Males

13122

M55-59

13122

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21632

Males

12837

M55-59

12837

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20665

Males

12369

M55-59

12369

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

20070

Males

12071

M55-59

12071

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21599

Males

12726

M55-59

12726

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

21316

Males

12556

M55-59

12556

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19944

Males

11891

M55-59

11891

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19187

Males

11559

M55-59

11559

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

18270

Males

11203

M55-59

11203

Passing Analysis

Category:
Athletes Passed
482
Passed By
5802
Net Change
-5320
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13889
5K → 10K381226-1188#13889#15077
10K → 15K41640-599#15077#15676
15K → 20K70494-424#15676#16100
20K → Half2090-70#16100#16170
Half → 25K73323-250#16170#16420
25K → 30K111577-1566#16420#17986
30K → 20M16478-462#17986#18448
20M → 21M29227-198#18448#18646
21M → 35K2795-68#18646#18714
35K → 23M13306-293#18714#19007
23M → 24M28175-147#19007#19154
24M → 40K3795-58#19154#19212
40K → 25.2M1823-5#19212#19217
25.2M → Finish6153+8#19217#19209
TOTALS4825802-5320
📊

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