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BOSTON MARATHON 2023

Lihua Jin

Bib: 22227•F

CA

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
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:16
Rank: #19338
Start → 5K
27:16 | 8:47/mi
10K· 6.21 mi
54:01
Rank: #19073 (+265)
5K → 10K
26:45 | 8:37/mi
15K· 9.32 mi
1:20:57
Rank: #18963 (+110)
10K → 15K
26:56 | 8:40/mi
20K· 12.43 mi
1:48:12
Rank: #18832 (+131)
15K → 20K
27:15 | 8:46/mi
Half· 13.11 mi
1:54:06
Rank: #18811 (+21)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:15:28
Rank: #18688 (+123)
Half → 25K
21:22 | 8:49/mi
30K· 18.64 mi
2:43:58
Rank: #18557 (+131)
25K → 30K
28:30 | 9:10/mi
20M
2:56:36
Rank: #18500 (+57)
30K → 20M
12:38 | 9:18/mi
21M
3:06:22
Rank: #18395 (+105)
20M → 21M
9:46 | 9:46/mi
35K· 21.75 mi
3:13:02
Rank: #18359 (+36)
21M → 35K
6:40 | 8:55/mi
23M
3:24:38
Rank: #18295 (+64)
35K → 23M
11:36 | 9:16/mi
24M
3:33:40
Rank: #18254 (+41)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:41:26
Rank: #18196 (+58)
24M → 40K
7:46 | 9:05/mi
25.2M
3:44:54
Rank: #18197 (-1)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:53:53
Rank: #18150 (+47)
25.2M → Finish
8:59 | 8:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:06
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time1:59:47
Pace9:08 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1327:168:4727:16
8:47
-
10K
6.21 mi11:49:5854:018:4226:45
8:37
-0:10
15K
9.32 mi12:16:541:20:578:4126:56
8:40
+0:03
20K
12.43 mi12:44:091:48:128:4227:15
8:46
+0:06
Half
13.11 mi12:50:031:54:068:425:54
8:39
-0:07
25K
15.53 mi13:11:252:15:288:4321:22
8:49
+0:10
30K
18.64 mi13:39:552:43:588:4828:30
9:10
+0:21
20M
20.00 mi13:52:332:56:368:5012:38
9:18
+0:08
21M
21.00 mi14:02:193:06:228:529:46
9:46
+0:28
35K
21.75 mi14:08:593:13:028:536:40
8:55
-0:51
23M
23.00 mi14:20:353:24:388:5411:36
9:16
+0:21
24M
24.00 mi14:29:373:33:408:549:02
9:02
-0:14
40K
24.85 mi14:37:233:41:268:557:46
9:05
+0:03
25.2M
25.20 mi14:40:513:44:548:553:28
10:03
+0:58
Finish
26.22 mi14:49:503:53:538:568:59
8:49
-1:14

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

8:37 /mi

Average Pace

8:56 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:40:39

94% of race

Time at Steady Pace

13:14

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:55 /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 mi11:23:1327:168:4727:16
8:47
#19338
10K
6.21 mi11:49:5854:018:4226:45
8:37
#19073
15K
9.32 mi12:16:541:20:578:4126:56
8:40
#18963
20K
12.43 mi12:44:091:48:128:4227:15
8:46
#18832
Half
13.11 mi12:50:031:54:068:425:54
8:39
#18811
25K
15.53 mi13:11:252:15:288:4321:22
8:49
#18688
30K
18.64 mi13:39:552:43:588:4828:30
9:10
#18557
20M
20.00 mi13:52:332:56:368:5012:38
9:18
#18500
21M
21.00 mi14:02:193:06:228:529:46
9:46
#18395
35K
21.75 mi14:08:593:13:028:536:40
8:55
#18359
23M
23.00 mi14:20:353:24:388:5411:36
9:16
#18295
24M
24.00 mi14:29:373:33:408:549:02
9:02
#18254
40K
24.85 mi14:37:233:41:268:557:46
9:05
#18196
25.2M
25.20 mi14:40:513:44:548:553:28
10:03
#18197
Finish
26.22 mi14:49:503:53:538:568:59
8:49
#18150
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi193387405740518841(Top 71%)7004(Top 61%)7004(Top 580%)
10K6.21 mi3.10 mi19073+2657199+2067199+20618898(Top 71%)7025(Top 61%)7025(Top 582%)
15K9.32 mi3.11 mi18963+1107109+907109+9018841(Top 71%)7004(Top 61%)7004(Top 580%)
20K12.43 mi3.11 mi18832+1317019+907019+9018523(Top 70%)6807(Top 60%)6807(Top 564%)
Half13.11 mi0.68 mi18811+217011+87011+818654(Top 70%)6868(Top 60%)6868(Top 569%)
25K15.53 mi2.42 mi18688+1236944+676944+6718040(Top 68%)6575(Top 58%)6575(Top 545%)
30K18.64 mi3.11 mi18557+1316901+436901+4318049(Top 68%)6681(Top 58%)6681(Top 554%)
20M20.00 mi1.36 mi18500+576869+326869+3218021(Top 68%)6754(Top 59%)6754(Top 560%)
21M21.00 mi1.00 mi18395+1056823+466823+4617143(Top 64%)6278(Top 55%)6278(Top 520%)
35K21.75 mi0.75 mi18359+366811+126811+1217536(Top 66%)6578(Top 58%)6578(Top 545%)
23M23.00 mi1.25 mi18295+646788+236788+2317374(Top 65%)6490(Top 57%)6490(Top 538%)
24M24.00 mi1.00 mi18254+416774+146774+1417400(Top 65%)6579(Top 58%)6579(Top 545%)
40K24.85 mi0.85 mi18196+586754+206754+2016595(Top 62%)6185(Top 54%)6185(Top 512%)
25.2M25.20 mi0.35 mi18197-16758-46758-417637(Top 66%)6764(Top 59%)6764(Top 560%)
Finish26.22 mi1.02 mi18150+476736+226736+2217145(Top 64%)6460(Top 57%)6460(Top 535%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

18841

Females

7004

F50-54

7004

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

18898

Females

7025

F50-54

7025

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

18841

Females

7004

F50-54

7004

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

18523

Females

6807

F50-54

6807

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18654

Females

6868

F50-54

6868

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

18040

Females

6575

F50-54

6575

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

18049

Females

6681

F50-54

6681

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18021

Females

6754

F50-54

6754

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17143

Females

6278

F50-54

6278

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17536

Females

6578

F50-54

6578

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17374

Females

6490

F50-54

6490

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17400

Females

6579

F50-54

6579

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16595

Females

6185

F50-54

6185

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17637

Females

6764

F50-54

6764

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

17145

Females

6460

F50-54

6460

Passing Analysis

Category:
Athletes Passed
2102
Passed By
914
Net Change
+1188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19338
5K → 10K503238+265#19338#19073
10K → 15K233123+110#19073#18963
15K → 20K233102+131#18963#18832
20K → Half3716+21#18832#18811
Half → 25K18057+123#18811#18688
25K → 30K233102+131#18688#18557
30K → 20M11760+57#18557#18500
20M → 21M13934+105#18500#18395
21M → 35K6226+36#18395#18359
35K → 23M11349+64#18359#18295
23M → 24M7332+41#18295#18254
24M → 40K7921+58#18254#18196
40K → 25.2M2324-1#18196#18197
25.2M → Finish7730+47#18197#18150
TOTALS2102914+1188
📊

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