Li Xu

Bib: 28838F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
36:13
Rank: #25289
Start5K
36:13 | 11:39/mi
10K· 6.21 mi
1:14:42
Rank: #25315 (-26)
5K10K
38:29 | 12:23/mi
15K· 9.32 mi
1:56:45
Rank: #25383 (-68)
10K15K
42:03 | 13:32/mi
20K· 12.43 mi
2:36:54
Rank: #25319 (+64)
15K20K
40:09 | 12:55/mi
Half· 13.11 mi
2:44:46
Rank: #25297 (+22)
20KHalf
7:52 | 11:32/mi
25K· 15.53 mi
3:19:22
Rank: #25294 (+3)
Half25K
34:36 | 14:16/mi
30K· 18.64 mi
4:01:18
Rank: #25143 (+151)
25K30K
41:56 | 13:30/mi
20M
4:19:26
Rank: #25064 (+79)
30K20M
18:08 | 13:21/mi
21M
4:34:14
Rank: #25026 (+38)
20M21M
14:48 | 14:48/mi
35K· 21.75 mi
4:43:30
Rank: #24970 (+56)
21M35K
9:16 | 12:23/mi
23M
5:01:16
Rank: #24954 (+16)
35K23M
17:46 | 14:11/mi
24M
5:13:56
Rank: #24889 (+65)
23M24M
12:40 | 12:40/mi
40K· 24.85 mi
5:26:20
Rank: #24902 (-13)
24M40K
12:24 | 14:30/mi
25.2M
5:32:32
Rank: #24926 (-24)
40K25.2M
6:12 | 17:59/mi
Finish· 26.22 mi
5:46:14
Rank: #24933 (-7)
25.2MFinish
13:42 | 13:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:44:46
Pace12:34 /mi
2nd Half
Distance13.11 mi
Time3:01:28
Pace13:51 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:2336:1311:3936:13
11:39
-
10K
6.21 mi12:36:521:14:4212:0138:29
12:23
+0:44
15K
9.32 mi13:18:551:56:4512:3242:03
13:32
+1:09
20K
12.43 mi13:59:042:36:5412:3840:09
12:55
-0:37
Half
13.11 mi14:06:562:44:4612:347:52
11:32
-1:23
25K
15.53 mi14:41:323:19:2212:5034:36
14:16
+2:44
30K
18.64 mi15:23:284:01:1812:5741:56
13:30
-0:46
20M
20.00 mi15:41:364:19:2612:5818:08
13:21
-0:09
21M
21.00 mi15:56:244:34:1413:0414:48
14:48
+1:27
35K
21.75 mi16:05:404:43:3013:029:16
12:23
-2:25
23M
23.00 mi16:23:265:01:1613:0617:46
14:11
+1:48
24M
24.00 mi16:36:065:13:5613:0512:40
12:40
-1:31
40K
24.85 mi16:48:305:26:2013:0812:24
14:30
+1:50
25.2M
25.20 mi16:54:425:32:3213:126:12
17:59
+3:29
Finish
26.22 mi17:08:245:46:1413:1313:42
13:27
-4:32

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

11:32 /mi

Average Pace

13:13 /mi

Slowest Pace

17:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:30

30% of race

Time at Steady Pace

2:53:44

50% of race

Time at Slower Pace

1:08:00

20% of race

Average Pace: 13:12 /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 mi11:58:2336:1311:3936:13
11:39
#25289
10K
6.21 mi12:36:521:14:4212:0138:29
12:23
#25315
15K
9.32 mi13:18:551:56:4512:3242:03
13:32
#25383
20K
12.43 mi13:59:042:36:5412:3840:09
12:55
#25319
Half
13.11 mi14:06:562:44:4612:347:52
11:32
#25297
25K
15.53 mi14:41:323:19:2212:5034:36
14:16
#25294
30K
18.64 mi15:23:284:01:1812:5741:56
13:30
#25143
20M
20.00 mi15:41:364:19:2612:5818:08
13:21
#25064
21M
21.00 mi15:56:244:34:1413:0414:48
14:48
#25026
35K
21.75 mi16:05:404:43:3013:029:16
12:23
#24970
23M
23.00 mi16:23:265:01:1613:0617:46
14:11
#24954
24M
24.00 mi16:36:065:13:5613:0512:40
12:40
#24889
40K
24.85 mi16:48:305:26:2013:0812:24
14:30
#24902
25.2M
25.20 mi16:54:425:32:3213:126:12
17:59
#24926
Finish
26.22 mi17:08:245:46:1413:1313:42
13:27
#24933
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi25289107571075725429(Top 100%)10855(Top 99%)10855(Top 619%)
10K6.21 mi3.10 mi25315-2610778-2110778-2125305(Top 99%)10766(Top 99%)10766(Top 614%)
15K9.32 mi3.11 mi25383-6810820-4210820-4225429(Top 100%)10855(Top 99%)10855(Top 619%)
20K12.43 mi3.11 mi25319+6410776+4410776+4424807(Top 97%)10491(Top 96%)10491(Top 598%)
Half13.11 mi0.68 mi25297+2210759+1710759+1724152(Top 95%)10132(Top 93%)10132(Top 578%)
25K15.53 mi2.42 mi25294+310764-510764-525057(Top 98%)10658(Top 98%)10658(Top 608%)
30K18.64 mi3.11 mi25143+15110678+8610678+8623813(Top 93%)10075(Top 92%)10075(Top 575%)
20M20.00 mi1.36 mi25064+7910643+3510643+3523299(Top 91%)9908(Top 91%)9908(Top 565%)
21M21.00 mi1.00 mi25026+3810619+2410619+2423335(Top 91%)9960(Top 91%)9960(Top 568%)
35K21.75 mi0.75 mi24970+5610591+2810591+2822432(Top 88%)9559(Top 88%)9559(Top 545%)
23M23.00 mi1.25 mi24954+16105911059123985(Top 94%)10283(Top 94%)10283(Top 587%)
24M24.00 mi1.00 mi24889+6510562+2910562+2922563(Top 88%)9701(Top 89%)9701(Top 553%)
40K24.85 mi0.85 mi24902-1310573-1110573-1124141(Top 94%)10435(Top 96%)10435(Top 595%)
25.2M25.20 mi0.35 mi24926-2410589-1610589-1625017(Top 98%)10758(Top 98%)10758(Top 614%)
Finish26.22 mi1.02 mi24933-710601-1210601-1224664(Top 97%)10655(Top 98%)10655(Top 608%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

25429

Females

10855

F45-49

10855

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

25305

Females

10766

F45-49

10766

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

25429

Females

10855

F45-49

10855

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

24807

Females

10491

F45-49

10491

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

24152

Females

10132

F45-49

10132

Half→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

25057

Females

10658

F45-49

10658

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

23813

Females

10075

F45-49

10075

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

23299

Females

9908

F45-49

9908

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

23335

Females

9960

F45-49

9960

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

22432

Females

9559

F45-49

9559

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

23985

Females

10283

F45-49

10283

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

22563

Females

9701

F45-49

9701

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24141

Females

10435

F45-49

10435

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

25017

Females

10758

F45-49

10758

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

24664

Females

10655

F45-49

10655

Passing Analysis

Category:
Athletes Passed
641
Passed By
285
Net Change
+356
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25289
5K10K3662-26#25289#25315
10K15K1583-68#25315#25383
15K20K739+64#25383#25319
20KHalf231+22#25319#25297
Half25K2825+3#25297#25294
25K30K1521+151#25294#25143
30K20M801+79#25143#25064
20M21M424+38#25064#25026
21M35K593+56#25026#24970
35K23M3115+16#24970#24954
23M24M650+65#24954#24889
24M40K1730-13#24889#24902
40K25.2M327-24#24902#24926
25.2MFinish1724-7#24926#24933
TOTALS641285+356
📊

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