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BOSTON MARATHON 2023

Sharon Li

Bib: 22336•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:16
Rank: #21856
Start → 5K
29:16 | 9:25/mi
10K· 6.21 mi
1:00:00
Rank: #22769 (-913)
5K → 10K
30:44 | 9:54/mi
15K· 9.32 mi
1:31:55
Rank: #23279 (-510)
10K → 15K
31:55 | 10:16/mi
20K· 12.43 mi
2:03:46
Rank: #23341 (-62)
15K → 20K
31:51 | 10:15/mi
Half· 13.11 mi
2:10:37
Rank: #23338 (+3)
20K → Half
6:51 | 10:02/mi
25K· 15.53 mi
2:35:23
Rank: #23210 (+128)
Half → 25K
24:46 | 10:13/mi
30K· 18.64 mi
3:08:43
Rank: #23092 (+118)
25K → 30K
33:20 | 10:44/mi
20M
3:23:27
Rank: #23025 (+67)
30K → 20M
14:44 | 10:51/mi
21M
3:35:00
Rank: #22966 (+59)
20M → 21M
11:33 | 11:33/mi
35K· 21.75 mi
3:42:39
Rank: #22914 (+52)
21M → 35K
7:39 | 10:14/mi
23M
3:55:40
Rank: #22808 (+106)
35K → 23M
13:01 | 10:24/mi
24M
4:06:08
Rank: #22771 (+37)
23M → 24M
10:28 | 10:28/mi
40K· 24.85 mi
4:15:02
Rank: #22706 (+65)
24M → 40K
8:54 | 10:25/mi
25.2M
4:18:53
Rank: #22678 (+28)
40K → 25.2M
3:51 | 11:10/mi
Finish· 26.22 mi
4:29:04
Rank: #22656 (+22)
25.2M → Finish
10:11 | 10:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:37
Pace9:58 /mi
2nd Half
Distance13.11 mi
Time2:18:27
Pace10:34 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3029:169:2529:16
9:25
-
10K
6.21 mi11:51:141:00:009:3930:44
9:54
+0:29
15K
9.32 mi12:23:091:31:559:5231:55
10:16
+0:22
20K
12.43 mi12:55:002:03:469:5831:51
10:15
-0:01
Half
13.11 mi13:01:512:10:379:586:51
10:02
-0:13
25K
15.53 mi13:26:372:35:2310:0024:46
10:13
+0:11
30K
18.64 mi13:59:573:08:4310:0733:20
10:44
+0:31
20M
20.00 mi14:14:413:23:2710:1014:44
10:51
+0:07
21M
21.00 mi14:26:143:35:0010:1411:33
11:33
+0:42
35K
21.75 mi14:33:533:42:3910:147:39
10:14
-1:19
23M
23.00 mi14:46:543:55:4010:1513:01
10:24
+0:10
24M
24.00 mi14:57:224:06:0810:1510:28
10:28
+0:04
40K
24.85 mi15:06:164:15:0210:168:54
10:25
-0:03
25.2M
25.20 mi15:10:074:18:5310:163:51
11:10
+0:45
Finish
26.22 mi15:20:184:29:0410:1610:11
10:00
-1:10

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

9:25 /mi

Average Pace

10:16 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:10:11

26% of race

Time at Steady Pace

2:15:25

50% of race

Time at Slower Pace

1:03:28

24% of race

Average Pace: 10:16 /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 mi11:20:3029:169:2529:16
9:25
#21856
10K
6.21 mi11:51:141:00:009:3930:44
9:54
#22769
15K
9.32 mi12:23:091:31:559:5231:55
10:16
#23279
20K
12.43 mi12:55:002:03:469:5831:51
10:15
#23341
Half
13.11 mi13:01:512:10:379:586:51
10:02
#23338
25K
15.53 mi13:26:372:35:2310:0024:46
10:13
#23210
30K
18.64 mi13:59:573:08:4310:0733:20
10:44
#23092
20M
20.00 mi14:14:413:23:2710:1014:44
10:51
#23025
21M
21.00 mi14:26:143:35:0010:1411:33
11:33
#22966
35K
21.75 mi14:33:533:42:3910:147:39
10:14
#22914
23M
23.00 mi14:46:543:55:4010:1513:01
10:24
#22808
24M
24.00 mi14:57:224:06:0810:1510:28
10:28
#22771
40K
24.85 mi15:06:164:15:0210:168:54
10:25
#22706
25.2M
25.20 mi15:10:074:18:5310:163:51
11:10
#22678
Finish
26.22 mi15:20:184:29:0410:1610:11
10:00
#22656
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi218568814881424032(Top 90%)9903(Top 87%)9903(Top 820%)
10K6.21 mi3.10 mi22769-9139237-4239237-42323468(Top 88%)9605(Top 84%)9605(Top 796%)
15K9.32 mi3.11 mi23279-5109498-2619498-26124032(Top 90%)9903(Top 87%)9903(Top 820%)
20K12.43 mi3.11 mi23341-629529-319529-3123385(Top 88%)9556(Top 84%)9556(Top 792%)
Half13.11 mi0.68 mi23338+39525+49525+423368(Top 88%)9551(Top 84%)9551(Top 791%)
25K15.53 mi2.42 mi23210+1289463+629463+6222652(Top 85%)9194(Top 80%)9194(Top 762%)
30K18.64 mi3.11 mi23092+1189433+309433+3022652(Top 85%)9273(Top 81%)9273(Top 768%)
20M20.00 mi1.36 mi23025+679411+229411+2222419(Top 84%)9208(Top 81%)9208(Top 763%)
21M21.00 mi1.00 mi22966+599389+229389+2221972(Top 83%)8975(Top 79%)8975(Top 744%)
35K21.75 mi0.75 mi22914+529370+199370+1921852(Top 82%)8968(Top 79%)8968(Top 743%)
23M23.00 mi1.25 mi22808+1069329+419329+4121074(Top 79%)8569(Top 75%)8569(Top 710%)
24M24.00 mi1.00 mi22771+379316+139316+1321980(Top 83%)9089(Top 80%)9089(Top 753%)
40K24.85 mi0.85 mi22706+659284+329284+3221021(Top 79%)8620(Top 75%)8620(Top 714%)
25.2M25.20 mi0.35 mi22678+289275+99275+920876(Top 78%)8528(Top 75%)8528(Top 707%)
Finish26.22 mi1.02 mi22656+229267+89267+821760(Top 82%)8993(Top 79%)8993(Top 745%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

24032

Females

9903

F50-54

9903

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

23468

Females

9605

F50-54

9605

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

24032

Females

9903

F50-54

9903

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23385

Females

9556

F50-54

9556

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

23368

Females

9551

F50-54

9551

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22652

Females

9194

F50-54

9194

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22652

Females

9273

F50-54

9273

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22419

Females

9208

F50-54

9208

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

21972

Females

8975

F50-54

8975

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

21852

Females

8968

F50-54

8968

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

21074

Females

8569

F50-54

8569

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

21980

Females

9089

F50-54

9089

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21021

Females

8620

F50-54

8620

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20876

Females

8528

F50-54

8528

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

21760

Females

8993

F50-54

8993

Passing Analysis

Category:
Athletes Passed
1070
Passed By
1870
Net Change
-800
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21856
5K → 10K28941-913#21856#22769
10K → 15K27537-510#22769#23279
15K → 20K96158-62#23279#23341
20K → Half1916+3#23341#23338
Half → 25K17446+128#23338#23210
25K → 30K17961+118#23210#23092
30K → 20M9225+67#23092#23025
20M → 21M7617+59#23025#22966
21M → 35K619+52#22966#22914
35K → 23M1159+106#22914#22808
23M → 24M5215+37#22808#22771
24M → 40K705+65#22771#22706
40K → 25.2M302+28#22706#22678
25.2M → Finish5129+22#22678#22656
TOTALS10701870-800
📊

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