Li Zhou

Bib: 20855F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
Masters (Masters Women)
#0 / 6759
Top 29%
Division (F45-49)
#0 / 1813
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:51
Rank: #13782
Start5K
23:51 | 7:41/mi
10K· 6.21 mi
47:49
Rank: #13893 (-111)
5K10K
23:58 | 7:43/mi
15K· 9.32 mi
1:11:54
Rank: #13876 (+17)
10K15K
24:05 | 7:45/mi
20K· 12.43 mi
1:37:23
Rank: #14550 (-674)
15K20K
25:29 | 8:12/mi
Half· 13.11 mi
1:42:52
Rank: #14649 (-99)
20KHalf
5:29 | 8:02/mi
25K· 15.53 mi
2:02:52
Rank: #14810 (-161)
Half25K
20:00 | 8:15/mi
30K· 18.64 mi
2:29:52
Rank: #15048 (-238)
25K30K
27:00 | 8:41/mi
20M
2:42:31
Rank: #15328 (-280)
30K20M
12:39 | 9:19/mi
21M
2:52:23
Rank: #15459 (-131)
20M21M
9:52 | 9:52/mi
35K· 21.75 mi
2:58:49
Rank: #15483 (-24)
21M35K
6:26 | 8:36/mi
23M
3:10:01
Rank: #15466 (+17)
35K23M
11:12 | 8:57/mi
24M
3:18:48
Rank: #15494 (-28)
23M24M
8:47 | 8:47/mi
40K· 24.85 mi
3:26:32
Rank: #15493 (+1)
24M40K
7:44 | 9:03/mi
25.2M
3:29:53
Rank: #15494 (-1)
40K25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:38:50
Rank: #15573 (-79)
25.2MFinish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:52
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:55:58
Pace8:51 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2723:517:4123:51
7:41
-
10K
6.21 mi11:40:2547:497:4223:58
7:43
+0:02
15K
9.32 mi12:04:301:11:547:4324:05
7:45
+0:02
20K
12.43 mi12:29:591:37:237:5025:29
8:12
+0:27
Half
13.11 mi12:35:281:42:527:515:29
8:02
-0:10
25K
15.53 mi12:55:282:02:527:5520:00
8:15
+0:13
30K
18.64 mi13:22:282:29:528:0227:00
8:41
+0:26
20M
20.00 mi13:35:072:42:318:0812:39
9:19
+0:38
21M
21.00 mi13:44:592:52:238:139:52
9:52
+0:33
35K
21.75 mi13:51:252:58:498:136:26
8:36
-1:16
23M
23.00 mi14:02:373:10:018:1611:12
8:57
+0:21
24M
24.00 mi14:11:243:18:488:178:47
8:47
-0:10
40K
24.85 mi14:19:083:26:328:197:44
9:03
+0:16
25.2M
25.20 mi14:22:293:29:538:203:21
9:43
+0:40
Finish
26.22 mi14:31:263:38:508:218:57
8:47
-0:56

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

7:41 /mi

Average Pace

8:21 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:52

56% of race

Time at Steady Pace

1:02:22

28% of race

Time at Slower Pace

33:36

15% of race

Average Pace: 8:21 /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 mi11:16:2723:517:4123:51
7:41
#13782
10K
6.21 mi11:40:2547:497:4223:58
7:43
#13893
15K
9.32 mi12:04:301:11:547:4324:05
7:45
#13876
20K
12.43 mi12:29:591:37:237:5025:29
8:12
#14550
Half
13.11 mi12:35:281:42:527:515:29
8:02
#14649
25K
15.53 mi12:55:282:02:527:5520:00
8:15
#14810
30K
18.64 mi13:22:282:29:528:0227:00
8:41
#15048
20M
20.00 mi13:35:072:42:318:0812:39
9:19
#15328
21M
21.00 mi13:44:592:52:238:139:52
9:52
#15459
35K
21.75 mi13:51:252:58:498:136:26
8:36
#15483
23M
23.00 mi14:02:373:10:018:1611:12
8:57
#15466
24M
24.00 mi14:11:243:18:488:178:47
8:47
#15494
40K
24.85 mi14:19:083:26:328:197:44
9:03
#15493
25.2M
25.20 mi14:22:293:29:538:203:21
9:43
#15494
Finish
26.22 mi14:31:263:38:508:218:57
8:47
#15573
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi137823767376713974(Top 49%)4005(Top 33%)4005(Top 221%)
10K6.21 mi3.10 mi13893-1113879-1123879-11214042(Top 49%)3982(Top 33%)3982(Top 220%)
15K9.32 mi3.11 mi13876+173895-163895-1613974(Top 49%)4005(Top 33%)4005(Top 221%)
20K12.43 mi3.11 mi14550-6744320-4254320-42516328(Top 57%)5400(Top 44%)5400(Top 298%)
Half13.11 mi0.68 mi14649-994380-604380-6016237(Top 57%)5324(Top 44%)5324(Top 294%)
25K15.53 mi2.42 mi14810-1614512-1324512-13215623(Top 55%)5083(Top 42%)5083(Top 280%)
30K18.64 mi3.11 mi15048-2384692-1804692-18015952(Top 56%)5434(Top 44%)5434(Top 300%)
20M20.00 mi1.36 mi15328-2804875-1834875-18318330(Top 65%)6903(Top 56%)6903(Top 381%)
21M21.00 mi1.00 mi15459-1314990-1154990-11517775(Top 63%)6672(Top 55%)6672(Top 368%)
35K21.75 mi0.75 mi15483-245017-275017-2716076(Top 57%)5819(Top 48%)5819(Top 321%)
23M23.00 mi1.25 mi15466+175054-375054-3715959(Top 56%)5859(Top 48%)5859(Top 323%)
24M24.00 mi1.00 mi15494-285089-355089-3516238(Top 57%)6064(Top 50%)6064(Top 334%)
40K24.85 mi0.85 mi15493+15124-355124-3516583(Top 58%)6353(Top 52%)6353(Top 350%)
25.2M25.20 mi0.35 mi15494-15136-125136-1215719(Top 55%)5930(Top 48%)5930(Top 327%)
Finish26.22 mi1.02 mi15573-795195-595195-5917963(Top 63%)7057(Top 58%)7057(Top 389%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13974

Females

4005

F45-49

4005

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

14042

Females

3982

F45-49

3982

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13974

Females

4005

F45-49

4005

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

16328

Females

5400

F45-49

5400

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

16237

Females

5324

F45-49

5324

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15623

Females

5083

F45-49

5083

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15952

Females

5434

F45-49

5434

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

18330

Females

6903

F45-49

6903

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

17775

Females

6672

F45-49

6672

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

16076

Females

5819

F45-49

5819

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15959

Females

5859

F45-49

5859

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

16238

Females

6064

F45-49

6064

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16583

Females

6353

F45-49

6353

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15719

Females

5930

F45-49

5930

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17963

Females

7057

F45-49

7057

Passing Analysis

Category:
Athletes Passed
1335
Passed By
3126
Net Change
-1791
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13782
5K10K234345-111#13782#13893
10K15K196179+17#13893#13876
15K20K66740-674#13876#14550
20KHalf22121-99#14550#14649
Half25K131292-161#14649#14810
25K30K180418-238#14810#15048
30K20M57337-280#15048#15328
20M21M80211-131#15328#15459
21M35K4973-24#15459#15483
35K23M125108+17#15483#15466
23M24M5987-28#15466#15494
24M40K6362+1#15494#15493
40K25.2M3233-1#15493#15494
25.2MFinish41120-79#15494#15573
TOTALS13353126-1791
📊

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