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BOSTON MARATHON 2023

Lan Shen

Bib: 11871•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 50%
Gender (Female)
#0 / 11423
Top 33%
Masters (Masters Women)
#0 / 6539
Top 20%
Division (F50-54)
#0 / 1207
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:16
Rank: #14959
Start → 5K
25:16 | 8:08/mi
10K· 6.21 mi
50:16
Rank: #15040 (-81)
5K → 10K
25:00 | 8:03/mi
15K· 9.32 mi
1:15:16
Rank: #14945 (+95)
10K → 15K
25:00 | 8:03/mi
20K· 12.43 mi
1:40:27
Rank: #14742 (+203)
15K → 20K
25:11 | 8:06/mi
Half· 13.11 mi
1:45:53
Rank: #14707 (+35)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:05:35
Rank: #14534 (+173)
Half → 25K
19:42 | 8:08/mi
30K· 18.64 mi
2:31:08
Rank: #14154 (+380)
25K → 30K
25:33 | 8:13/mi
20M
2:42:17
Rank: #13946 (+208)
30K → 20M
11:09 | 8:12/mi
21M
2:51:05
Rank: #13813 (+133)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
2:56:59
Rank: #13701 (+112)
21M → 35K
5:54 | 7:53/mi
23M
3:07:22
Rank: #13559 (+142)
35K → 23M
10:23 | 8:18/mi
24M
3:15:18
Rank: #13405 (+154)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:22:21
Rank: #13309 (+96)
24M → 40K
7:03 | 8:15/mi
25.2M
3:25:27
Rank: #13271 (+38)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:33:33
Rank: #13203 (+68)
25.2M → Finish
8:06 | 7:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:53
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:47:40
Pace8:13 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5325:168:0825:16
8:08
-
10K
6.21 mi11:16:5350:168:0525:00
8:03
-0:05
15K
9.32 mi11:41:531:15:168:0525:00
8:03
0:00
20K
12.43 mi12:07:041:40:278:0525:11
8:06
+0:03
Half
13.11 mi12:12:301:45:538:055:26
7:58
-0:08
25K
15.53 mi12:32:122:05:358:0519:42
8:08
+0:10
30K
18.64 mi12:57:452:31:088:0625:33
8:13
+0:05
20M
20.00 mi13:08:542:42:178:0711:09
8:12
-0:01
21M
21.00 mi13:17:422:51:058:098:48
8:48
+0:36
35K
21.75 mi13:23:362:56:598:085:54
7:53
-0:55
23M
23.00 mi13:33:593:07:228:0910:23
8:18
+0:25
24M
24.00 mi13:41:553:15:188:087:56
7:56
-0:22
40K
24.85 mi13:48:583:22:218:087:03
8:15
+0:19
25.2M
25.20 mi13:52:043:25:278:093:06
8:59
+0:44
Finish
26.22 mi14:00:103:33:338:098:06
7:57
-1:02

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

7:53 /mi

Average Pace

8:09 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:39

94% of race

Time at Steady Pace

11:54

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:09 /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 mi10:51:5325:168:0825:16
8:08
#14959
10K
6.21 mi11:16:5350:168:0525:00
8:03
#15040
15K
9.32 mi11:41:531:15:168:0525:00
8:03
#14945
20K
12.43 mi12:07:041:40:278:0525:11
8:06
#14742
Half
13.11 mi12:12:301:45:538:055:26
7:58
#14707
25K
15.53 mi12:32:122:05:358:0519:42
8:08
#14534
30K
18.64 mi12:57:452:31:088:0625:33
8:13
#14154
20M
20.00 mi13:08:542:42:178:0711:09
8:12
#13946
21M
21.00 mi13:17:422:51:058:098:48
8:48
#13813
35K
21.75 mi13:23:362:56:598:085:54
7:53
#13701
23M
23.00 mi13:33:593:07:228:0910:23
8:18
#13559
24M
24.00 mi13:41:553:15:188:087:56
7:56
#13405
40K
24.85 mi13:48:583:22:218:087:03
8:15
#13309
25.2M
25.20 mi13:52:043:25:278:093:06
8:59
#13271
Finish
26.22 mi14:00:103:33:338:098:06
7:57
#13203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi149594612461214780(Top 56%)4553(Top 40%)4553(Top 377%)
10K6.21 mi3.10 mi15040-814670-584670-5815149(Top 57%)4757(Top 42%)4757(Top 394%)
15K9.32 mi3.11 mi14945+954626+444626+4414780(Top 56%)4553(Top 40%)4553(Top 377%)
20K12.43 mi3.11 mi14742+2034520+1064520+10614260(Top 54%)4261(Top 37%)4261(Top 353%)
Half13.11 mi0.68 mi14707+354500+204500+2014103(Top 53%)4134(Top 36%)4134(Top 343%)
25K15.53 mi2.42 mi14534+1734420+804420+8013690(Top 51%)4025(Top 35%)4025(Top 333%)
30K18.64 mi3.11 mi14154+3804235+1854235+18512507(Top 47%)3468(Top 30%)3468(Top 287%)
20M20.00 mi1.36 mi13946+2084126+1094126+10911766(Top 44%)3151(Top 28%)3151(Top 261%)
21M21.00 mi1.00 mi13813+1334062+644062+6412279(Top 46%)3556(Top 31%)3556(Top 295%)
35K21.75 mi0.75 mi13701+1124007+554007+5511363(Top 43%)3070(Top 27%)3070(Top 254%)
23M23.00 mi1.25 mi13559+1423951+563951+5611871(Top 45%)3449(Top 30%)3449(Top 286%)
24M24.00 mi1.00 mi13405+1543875+763875+7610821(Top 41%)3000(Top 26%)3000(Top 249%)
40K24.85 mi0.85 mi13309+963847+283847+2811710(Top 44%)3522(Top 31%)3522(Top 292%)
25.2M25.20 mi0.35 mi13271+383838+93838+912528(Top 47%)3987(Top 35%)3987(Top 330%)
Finish26.22 mi1.02 mi13203+683817+213817+2111766(Top 44%)3586(Top 31%)3586(Top 297%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

14780

Females

4553

F50-54

4553

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15149

Females

4757

F50-54

4757

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

14780

Females

4553

F50-54

4553

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14260

Females

4261

F50-54

4261

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14103

Females

4134

F50-54

4134

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13690

Females

4025

F50-54

4025

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

12507

Females

3468

F50-54

3468

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11766

Females

3151

F50-54

3151

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12279

Females

3556

F50-54

3556

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11363

Females

3070

F50-54

3070

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11871

Females

3449

F50-54

3449

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10821

Females

3000

F50-54

3000

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11710

Females

3522

F50-54

3522

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12528

Females

3987

F50-54

3987

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11766

Females

3586

F50-54

3586

Passing Analysis

Category:
Athletes Passed
2566
Passed By
810
Net Change
+1756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14959
5K → 10K258339-81#14959#15040
10K → 15K228133+95#15040#14945
15K → 20K28279+203#14945#14742
20K → Half5015+35#14742#14707
Half → 25K23562+173#14707#14534
25K → 30K41232+380#14534#14154
30K → 20M22113+208#14154#13946
20M → 21M16027+133#13946#13813
21M → 35K1197+112#13813#13701
35K → 23M16624+142#13701#13559
23M → 24M16511+154#13559#13405
24M → 40K11418+96#13405#13309
40K → 25.2M5416+38#13309#13271
25.2M → Finish10234+68#13271#13203
TOTALS2566810+1756
📊

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