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BOSTON MARATHON 2023

Yu Rou Chao

Bib: 12642•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:19
Rank: #9700
Start → 5K
23:19 | 7:30/mi
10K· 6.21 mi
50:38
Rank: #15454 (-5754)
5K → 10K
27:19 | 8:48/mi
15K· 9.32 mi
1:15:56
Rank: #15472 (-18)
10K → 15K
25:18 | 8:09/mi
20K· 12.43 mi
1:42:05
Rank: #15680 (-208)
15K → 20K
26:09 | 8:25/mi
Half· 13.11 mi
1:47:45
Rank: #15710 (-30)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:08:32
Rank: #15857 (-147)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:36:23
Rank: #16078 (-221)
25K → 30K
27:51 | 8:58/mi
20M
2:49:13
Rank: #16290 (-212)
30K → 20M
12:50 | 9:27/mi
21M
2:59:16
Rank: #16408 (-118)
20M → 21M
10:03 | 10:03/mi
35K· 21.75 mi
3:06:07
Rank: #16500 (-92)
21M → 35K
6:51 | 9:09/mi
23M
3:17:44
Rank: #16574 (-74)
35K → 23M
11:37 | 9:17/mi
24M
3:26:34
Rank: #16560 (+14)
23M → 24M
8:50 | 8:50/mi
40K· 24.85 mi
3:34:04
Rank: #16472 (+88)
24M → 40K
7:30 | 8:46/mi
25.2M
3:37:26
Rank: #16462 (+10)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:46:06
Rank: #16402 (+60)
25.2M → Finish
8:40 | 8:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:45
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:58:21
Pace9:02 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4023:197:3023:19
7:30
-
10K
6.21 mi11:17:5950:388:0927:19
8:48
+1:18
15K
9.32 mi11:43:171:15:568:0925:18
8:09
-0:39
20K
12.43 mi12:09:261:42:058:1326:09
8:25
+0:16
Half
13.11 mi12:15:061:47:458:135:40
8:18
-0:07
25K
15.53 mi12:35:532:08:328:1620:47
8:34
+0:16
30K
18.64 mi13:03:442:36:238:2327:51
8:58
+0:24
20M
20.00 mi13:16:342:49:138:2812:50
9:27
+0:29
21M
21.00 mi13:26:372:59:168:3210:03
10:03
+0:36
35K
21.75 mi13:33:283:06:078:336:51
9:09
-0:54
23M
23.00 mi13:45:053:17:448:3611:37
9:17
+0:08
24M
24.00 mi13:53:553:26:348:368:50
8:50
-0:27
40K
24.85 mi14:01:253:34:048:377:30
8:46
-0:04
25.2M
25.20 mi14:04:473:37:268:383:22
9:46
+1:00
Finish
26.22 mi14:13:273:46:068:388:40
8:30
-1:16

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

7:30 /mi

Average Pace

8:38 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:26

36% of race

Time at Steady Pace

1:40:57

45% of race

Time at Slower Pace

44:43

20% of race

Average Pace: 8:37 /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 mi10:50:4023:197:3023:19
7:30
#9700
10K
6.21 mi11:17:5950:388:0927:19
8:48
#15454
15K
9.32 mi11:43:171:15:568:0925:18
8:09
#15472
20K
12.43 mi12:09:261:42:058:1326:09
8:25
#15680
Half
13.11 mi12:15:061:47:458:135:40
8:18
#15710
25K
15.53 mi12:35:532:08:328:1620:47
8:34
#15857
30K
18.64 mi13:03:442:36:238:2327:51
8:58
#16078
20M
20.00 mi13:16:342:49:138:2812:50
9:27
#16290
21M
21.00 mi13:26:372:59:168:3210:03
10:03
#16408
35K
21.75 mi13:33:283:06:078:336:51
9:09
#16500
23M
23.00 mi13:45:053:17:448:3611:37
9:17
#16574
24M
24.00 mi13:53:553:26:348:368:50
8:50
#16560
40K
24.85 mi14:01:253:34:048:377:30
8:46
#16472
25.2M
25.20 mi14:04:473:37:268:383:22
9:46
#16462
Finish
26.22 mi14:13:273:46:068:388:40
8:30
#16402
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi97001712171215472(Top 58%)4966(Top 43%)4966(Top 102%)
10K6.21 mi3.10 mi15454-57544940-32284940-322819884(Top 75%)7629(Top 67%)7629(Top 156%)
15K9.32 mi3.11 mi15472-184961-214961-2115472(Top 58%)4966(Top 43%)4966(Top 102%)
20K12.43 mi3.11 mi15680-2085104-1435104-14316358(Top 61%)5563(Top 49%)5563(Top 114%)
Half13.11 mi0.68 mi15710-305129-255129-2516560(Top 62%)5643(Top 49%)5643(Top 116%)
25K15.53 mi2.42 mi15857-1475247-1185247-11816645(Top 63%)5801(Top 51%)5801(Top 119%)
30K18.64 mi3.11 mi16078-2215422-1755422-17516982(Top 64%)6052(Top 53%)6052(Top 124%)
20M20.00 mi1.36 mi16290-2125577-1555577-15518640(Top 70%)7098(Top 62%)7098(Top 145%)
21M21.00 mi1.00 mi16408-1185653-765653-7618210(Top 68%)6875(Top 60%)6875(Top 141%)
35K21.75 mi0.75 mi16500-925718-655718-6518569(Top 70%)7138(Top 62%)7138(Top 146%)
23M23.00 mi1.25 mi16574-745774-565774-5617418(Top 65%)6513(Top 57%)6513(Top 133%)
24M24.00 mi1.00 mi16560+145784-105784-1016407(Top 62%)6027(Top 53%)6027(Top 123%)
40K24.85 mi0.85 mi16472+885756+285756+2814970(Top 56%)5285(Top 46%)5285(Top 108%)
25.2M25.20 mi0.35 mi16462+105753+35753+316412(Top 62%)6106(Top 53%)6106(Top 125%)
Finish26.22 mi1.02 mi16402+605722+315722+3115478(Top 58%)5525(Top 48%)5525(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15472

Females

4966

F18-39

4966

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

19884

Females

7629

F18-39

7629

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15472

Females

4966

F18-39

4966

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16358

Females

5563

F18-39

5563

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16560

Females

5643

F18-39

5643

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16645

Females

5801

F18-39

5801

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

16982

Females

6052

F18-39

6052

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

18640

Females

7098

F18-39

7098

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18210

Females

6875

F18-39

6875

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18569

Females

7138

F18-39

7138

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17418

Females

6513

F18-39

6513

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16407

Females

6027

F18-39

6027

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14970

Females

5285

F18-39

5285

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16412

Females

6106

F18-39

6106

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15478

Females

5525

F18-39

5525

Passing Analysis

Category:
Athletes Passed
1000
Passed By
7700
Net Change
-6702
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9700
5K → 10K25754-5754#9700#15454
10K → 15K175193-18#15454#15472
15K → 20K115323-208#15472#15680
20K → Half1747-30#15680#15710
Half → 25K92239-147#15710#15857
25K → 30K121342-221#15857#16078
30K → 20M35247-212#16078#16290
20M → 21M50168-118#16290#16408
21M → 35K27119-92#16408#16500
35K → 23M58132-74#16500#16574
23M → 24M7561+14#16574#16560
24M → 40K10719+88#16560#16472
40K → 25.2M3222+10#16472#16462
25.2M → Finish9434+60#16462#16402
TOTALS10007700-6702
📊

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