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BOSTON MARATHON 2023

Po-Yao Chang

Bib: 690•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 5%
Division (M18-39)
#0 / 5285
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:48
Rank: #784
Start → 5K
18:48 | 6:03/mi
10K· 6.21 mi
37:42
Rank: #884 (-100)
5K → 10K
18:54 | 6:05/mi
15K· 9.32 mi
56:53
Rank: #970 (-86)
10K → 15K
19:11 | 6:10/mi
20K· 12.43 mi
1:16:12
Rank: #992 (-22)
15K → 20K
19:19 | 6:13/mi
Half· 13.11 mi
1:20:23
Rank: #996 (-4)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:35:23
Rank: #976 (+20)
Half → 25K
15:00 | 6:11/mi
30K· 18.64 mi
1:54:49
Rank: #919 (+57)
25K → 30K
19:26 | 6:15/mi
20M
2:03:36
Rank: #929 (-10)
30K → 20M
8:47 | 6:28/mi
21M
2:10:19
Rank: #932 (-3)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:14:52
Rank: #917 (+15)
21M → 35K
4:33 | 6:05/mi
23M
2:22:42
Rank: #892 (+25)
35K → 23M
7:50 | 6:15/mi
24M
2:28:53
Rank: #880 (+12)
23M → 24M
6:11 | 6:11/mi
40K· 24.85 mi
2:34:23
Rank: #872 (+8)
24M → 40K
5:30 | 6:26/mi
25.2M
2:36:45
Rank: #868 (+4)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:43:06
Rank: #862 (+6)
25.2M → Finish
6:21 | 6:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:23
Pace6:08 /mi
2nd Half
Distance13.11 mi
Time1:22:43
Pace6:19 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0218:486:0318:48
6:03
-
10K
6.21 mi10:37:5637:426:0418:54
6:05
+0:02
15K
9.32 mi10:57:0756:536:0619:11
6:10
+0:05
20K
12.43 mi11:16:261:16:126:0819:19
6:13
+0:03
Half
13.11 mi11:20:371:20:236:084:11
6:08
-0:05
25K
15.53 mi11:35:371:35:236:0815:00
6:11
+0:03
30K
18.64 mi11:55:031:54:496:1019:26
6:15
+0:04
20M
20.00 mi12:03:502:03:366:118:47
6:28
+0:13
21M
21.00 mi12:10:332:10:196:126:43
6:43
+0:15
35K
21.75 mi12:15:062:14:526:124:33
6:05
-0:38
23M
23.00 mi12:22:562:22:426:127:50
6:15
+0:10
24M
24.00 mi12:29:072:28:536:126:11
6:11
-0:04
40K
24.85 mi12:34:372:34:236:135:30
6:26
+0:15
25.2M
25.20 mi12:36:592:36:456:132:22
6:52
+0:26
Finish
26.22 mi12:43:202:43:066:146:21
6:14
-0:38

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

6:03 /mi

Average Pace

6:14 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:01

94% of race

Time at Steady Pace

9:05

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:13 /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 mi10:19:0218:486:0318:48
6:03
#784
10K
6.21 mi10:37:5637:426:0418:54
6:05
#884
15K
9.32 mi10:57:0756:536:0619:11
6:10
#970
20K
12.43 mi11:16:261:16:126:0819:19
6:13
#992
Half
13.11 mi11:20:371:20:236:084:11
6:08
#996
25K
15.53 mi11:35:371:35:236:0815:00
6:11
#976
30K
18.64 mi11:55:031:54:496:1019:26
6:15
#919
20M
20.00 mi12:03:502:03:366:118:47
6:28
#929
21M
21.00 mi12:10:332:10:196:126:43
6:43
#932
35K
21.75 mi12:15:062:14:526:124:33
6:05
#917
23M
23.00 mi12:22:562:22:426:127:50
6:15
#892
24M
24.00 mi12:29:072:28:536:126:11
6:11
#880
40K
24.85 mi12:34:372:34:236:135:30
6:26
#872
25.2M
25.20 mi12:36:592:36:456:132:22
6:52
#868
Finish
26.22 mi12:43:202:43:066:146:21
6:14
#862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7847367361158(Top 4%)1104(Top 7%)1104(Top 21%)
10K6.21 mi3.10 mi884-100834-98834-981012(Top 4%)962(Top 6%)962(Top 18%)
15K9.32 mi3.11 mi970-86919-85919-851158(Top 4%)1104(Top 7%)1104(Top 21%)
20K12.43 mi3.11 mi992-22941-22941-221093(Top 4%)1042(Top 7%)1042(Top 20%)
Half13.11 mi0.68 mi996-4946-5946-51098(Top 4%)1047(Top 7%)1047(Top 20%)
25K15.53 mi2.42 mi976+20926+20926+20960(Top 4%)911(Top 6%)911(Top 17%)
30K18.64 mi3.11 mi919+57871+55871+55800(Top 3%)760(Top 5%)760(Top 14%)
20M20.00 mi1.36 mi929-10881-10881-101304(Top 5%)1243(Top 8%)1243(Top 24%)
21M21.00 mi1.00 mi932-3885-4885-41125(Top 4%)1071(Top 7%)1071(Top 20%)
35K21.75 mi0.75 mi917+15870+15870+15872(Top 3%)829(Top 5%)829(Top 16%)
23M23.00 mi1.25 mi892+25845+25845+25730(Top 3%)690(Top 5%)690(Top 13%)
24M24.00 mi1.00 mi880+12833+12833+12958(Top 4%)907(Top 6%)907(Top 17%)
40K24.85 mi0.85 mi872+8825+8825+81296(Top 5%)1223(Top 8%)1223(Top 23%)
25.2M25.20 mi0.35 mi868+4822+3822+31298(Top 5%)1228(Top 8%)1228(Top 23%)
Finish26.22 mi1.02 mi862+6816+6816+61368(Top 5%)1293(Top 9%)1293(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1158

Males

1104

M18-39

1104

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1012

Males

962

M18-39

962

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1158

Males

1104

M18-39

1104

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1093

Males

1042

M18-39

1042

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1098

Males

1047

M18-39

1047

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

960

Males

911

M18-39

911

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

800

Males

760

M18-39

760

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1304

Males

1243

M18-39

1243

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1125

Males

1071

M18-39

1071

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

872

Males

829

M18-39

829

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

730

Males

690

M18-39

690

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

958

Males

907

M18-39

907

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1296

Males

1223

M18-39

1223

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1298

Males

1228

M18-39

1228

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1368

Males

1293

M18-39

1293

Passing Analysis

Category:
Athletes Passed
263
Passed By
341
Net Change
-78
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#784
5K → 10K10110-100#784#884
10K → 15K793-86#884#970
15K → 20K1840-22#970#992
20K → Half26-4#992#996
Half → 25K3313+20#996#976
25K → 30K636+57#976#919
30K → 20M1121-10#919#929
20M → 21M1114-3#929#932
21M → 35K194+15#932#917
35K → 23M305+25#917#892
23M → 24M164+12#892#880
24M → 40K135+8#880#872
40K → 25.2M106+4#872#868
25.2M → Finish2014+6#868#862
TOTALS263341-78
📊

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