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BOSTON MARATHON 2023

Yan Liu

Bib: 18613•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 37%
Masters (Masters Women)
#0 / 6539
Top 23%
Division (F50-54)
#0 / 1207
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #16101
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
51:05
Rank: #15971 (+130)
5K → 10K
25:19 | 8:09/mi
15K· 9.32 mi
1:16:11
Rank: #15627 (+344)
10K → 15K
25:06 | 8:05/mi
20K· 12.43 mi
1:41:27
Rank: #15338 (+289)
15K → 20K
25:16 | 8:08/mi
Half· 13.11 mi
1:46:53
Rank: #15274 (+64)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:06:09
Rank: #14785 (+489)
Half → 25K
19:16 | 7:57/mi
30K· 18.64 mi
2:32:13
Rank: #14561 (+224)
25K → 30K
26:04 | 8:23/mi
20M
2:43:26
Rank: #14344 (+217)
30K → 20M
11:13 | 8:15/mi
21M
2:52:16
Rank: #14240 (+104)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
2:58:17
Rank: #14154 (+86)
21M → 35K
6:01 | 8:03/mi
23M
3:08:46
Rank: #14017 (+137)
35K → 23M
10:29 | 8:22/mi
24M
3:17:02
Rank: #13951 (+66)
23M → 24M
8:16 | 8:16/mi
40K· 24.85 mi
3:24:14
Rank: #13878 (+73)
24M → 40K
7:12 | 8:25/mi
25.2M
3:27:23
Rank: #13870 (+8)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:35:47
Rank: #13849 (+21)
25.2M → Finish
8:24 | 8:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:53
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:48:54
Pace8:18 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2725:468:1825:46
8:18
-
10K
6.21 mi11:48:4651:058:1325:19
8:09
-0:09
15K
9.32 mi12:13:521:16:118:1025:06
8:05
-0:04
20K
12.43 mi12:39:081:41:278:1025:16
8:08
+0:03
Half
13.11 mi12:44:341:46:538:095:26
7:58
-0:10
25K
15.53 mi13:03:502:06:098:0719:16
7:57
-0:01
30K
18.64 mi13:29:542:32:138:1026:04
8:23
+0:26
20M
20.00 mi13:41:072:43:268:1011:13
8:15
-0:08
21M
21.00 mi13:49:572:52:168:128:50
8:50
+0:35
35K
21.75 mi13:55:582:58:178:126:01
8:03
-0:47
23M
23.00 mi14:06:273:08:468:1210:29
8:22
+0:19
24M
24.00 mi14:14:433:17:028:138:16
8:16
-0:06
40K
24.85 mi14:21:553:24:148:137:12
8:25
+0:09
25.2M
25.20 mi14:25:043:27:238:143:09
9:08
+0:43
Finish
26.22 mi14:33:283:35:478:148:24
8:15
-0:53

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

7:57 /mi

Average Pace

8:14 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:48

94% of race

Time at Steady Pace

11:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:14 /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 mi11:23:2725:468:1825:46
8:18
#16101
10K
6.21 mi11:48:4651:058:1325:19
8:09
#15971
15K
9.32 mi12:13:521:16:118:1025:06
8:05
#15627
20K
12.43 mi12:39:081:41:278:1025:16
8:08
#15338
Half
13.11 mi12:44:341:46:538:095:26
7:58
#15274
25K
15.53 mi13:03:502:06:098:0719:16
7:57
#14785
30K
18.64 mi13:29:542:32:138:1026:04
8:23
#14561
20M
20.00 mi13:41:072:43:268:1011:13
8:15
#14344
21M
21.00 mi13:49:572:52:168:128:50
8:50
#14240
35K
21.75 mi13:55:582:58:178:126:01
8:03
#14154
23M
23.00 mi14:06:273:08:468:1210:29
8:22
#14017
24M
24.00 mi14:14:433:17:028:138:16
8:16
#13951
40K
24.85 mi14:21:553:24:148:137:12
8:25
#13878
25.2M
25.20 mi14:25:043:27:238:143:09
9:08
#13870
Finish
26.22 mi14:33:283:35:478:148:24
8:15
#13849
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi161015345534515025(Top 56%)4691(Top 41%)4691(Top 389%)
10K6.21 mi3.10 mi15971+1305264+815264+8115888(Top 60%)5197(Top 45%)5197(Top 431%)
15K9.32 mi3.11 mi15627+3445052+2125052+21215025(Top 56%)4691(Top 41%)4691(Top 389%)
20K12.43 mi3.11 mi15338+2894894+1584894+15814465(Top 54%)4378(Top 38%)4378(Top 363%)
Half13.11 mi0.68 mi15274+644858+364858+3614129(Top 53%)4160(Top 36%)4160(Top 345%)
25K15.53 mi2.42 mi14785+4894576+2824576+28212304(Top 46%)3258(Top 29%)3258(Top 270%)
30K18.64 mi3.11 mi14561+2244482+944482+9413645(Top 51%)4120(Top 36%)4120(Top 341%)
20M20.00 mi1.36 mi14344+2174388+944388+9412089(Top 45%)3337(Top 29%)3337(Top 276%)
21M21.00 mi1.00 mi14240+1044338+504338+5012474(Top 47%)3673(Top 32%)3673(Top 304%)
35K21.75 mi0.75 mi14154+864301+374301+3712484(Top 47%)3703(Top 32%)3703(Top 307%)
23M23.00 mi1.25 mi14017+1374237+644237+6412433(Top 47%)3763(Top 33%)3763(Top 312%)
24M24.00 mi1.00 mi13951+664227+104227+1013087(Top 49%)4176(Top 37%)4176(Top 346%)
40K24.85 mi0.85 mi13878+734196+314196+3112872(Top 48%)4145(Top 36%)4145(Top 343%)
25.2M25.20 mi0.35 mi13870+84200-44200-413319(Top 50%)4390(Top 38%)4390(Top 364%)
Finish26.22 mi1.02 mi13849+214200420013739(Top 52%)4598(Top 40%)4598(Top 381%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15025

Females

4691

F50-54

4691

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15888

Females

5197

F50-54

5197

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15025

Females

4691

F50-54

4691

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14465

Females

4378

F50-54

4378

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14129

Females

4160

F50-54

4160

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12304

Females

3258

F50-54

3258

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13645

Females

4120

F50-54

4120

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

12089

Females

3337

F50-54

3337

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12474

Females

3673

F50-54

3673

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

12484

Females

3703

F50-54

3703

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12433

Females

3763

F50-54

3763

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13087

Females

4176

F50-54

4176

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12872

Females

4145

F50-54

4145

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13319

Females

4390

F50-54

4390

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13739

Females

4598

F50-54

4598

Passing Analysis

Category:
Athletes Passed
2889
Passed By
637
Net Change
+2252
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16101
5K → 10K367237+130#16101#15971
10K → 15K41066+344#15971#15627
15K → 20K33849+289#15627#15338
20K → Half706+64#15338#15274
Half → 25K4923+489#15274#14785
25K → 30K28258+224#14785#14561
30K → 20M23114+217#14561#14344
20M → 21M12521+104#14344#14240
21M → 35K9711+86#14240#14154
35K → 23M17033+137#14154#14017
23M → 24M10034+66#14017#13951
24M → 40K10431+73#13951#13878
40K → 25.2M2719+8#13878#13870
25.2M → Finish7655+21#13870#13849
TOTALS2889637+2252
📊

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