Lijing Ren

Bib: 20951F

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 32%
Masters (Masters Women)
#0 / 6759
Top 18%
Division (F40-44)
#0 / 1718
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:54
Rank: #13932
Start5K
7:42/mi
23:54 split
10K· 6.21 mi
47:47
Rank: #13847 (+85)
5K10K
7:41/mi
23:53 split
15K· 9.32 mi
1:11:24
Rank: #13416 (+431)
10K15K
7:36/mi
23:37 split
20K· 12.43 mi
1:35:14
Rank: #13046 (+370)
15K20K
7:40/mi
23:50 split
Half· 13.11 mi
1:40:22
Rank: #12968 (+78)
20KHalf
7:31/mi
5:08 split
25K· 15.53 mi
1:58:59
Rank: #12687 (+281)
Half25K
7:41/mi
18:37 split
30K· 18.64 mi
2:23:23
Rank: #12198 (+489)
25K30K
7:51/mi
24:24 split
20M
2:34:02
Rank: #11933 (+265)
30K20M
7:50/mi
10:39 split
21M
2:42:35
Rank: #11834 (+99)
20M21M
8:33/mi
8:33 split
35K· 21.75 mi
2:48:25
Rank: #11783 (+51)
21M35K
7:48/mi
5:50 split
23M
2:58:33
Rank: #11676 (+107)
35K23M
8:06/mi
10:08 split
24M
3:06:26
Rank: #11583 (+93)
23M24M
7:53/mi
7:53 split
40K· 24.85 mi
3:14:15
Rank: #11823 (-240)
24M40K
9:09/mi
7:49 split
25.2M
3:18:17
Rank: #12104 (-281)
40K25.2M
11:42/mi
4:02 split
Finish· 26.22 mi
3:30:34
Rank: #13355 (-1251)
25.2MFinish
12:03/mi
12:17 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:22
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:50:12
Pace8:24 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5323:547:4223:54
7:42
-
10K
6.21 mi11:40:4647:477:4123:53
7:41
-0:01
15K
9.32 mi12:04:231:11:247:4023:37
7:36
-0:05
20K
12.43 mi12:28:131:35:147:4023:50
7:40
+0:04
Half
13.11 mi12:33:211:40:227:395:08
7:31
-0:09
25K
15.53 mi12:51:581:58:597:4018:37
7:41
+0:10
30K
18.64 mi13:16:222:23:237:4224:24
7:51
+0:10
20M
20.00 mi13:27:012:34:027:4210:39
7:50
-0:01
21M
21.00 mi13:35:342:42:357:458:33
8:33
+0:43
35K
21.75 mi13:41:242:48:257:455:50
7:48
-0:45
23M
23.00 mi13:51:322:58:337:4610:08
8:06
+0:18
24M
24.00 mi13:59:253:06:267:467:53
7:53
-0:13
40K
24.85 mi14:07:143:14:157:497:49
9:09
+1:16
25.2M
25.20 mi14:11:163:18:177:524:02
11:42
+2:33
Finish
26.22 mi14:23:333:30:348:0212:17
12:03
+0:21

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

7:31 /mi

Average Pace

8:02 /mi

Slowest Pace

12:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:57:53

84% of race

Time at Slower Pace

32:41

16% of race

Average Pace: 8:02 /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 mi11:16:5323:547:4223:54
7:42
#13932
10K
6.21 mi11:40:4647:477:4123:53
7:41
#13847
15K
9.32 mi12:04:231:11:247:4023:37
7:36
#13416
20K
12.43 mi12:28:131:35:147:4023:50
7:40
#13046
Half
13.11 mi12:33:211:40:227:395:08
7:31
#12968
25K
15.53 mi12:51:581:58:597:4018:37
7:41
#12687
30K
18.64 mi13:16:222:23:237:4224:24
7:51
#12198
20M
20.00 mi13:27:012:34:027:4210:39
7:50
#11933
21M
21.00 mi13:35:342:42:357:458:33
8:33
#11834
35K
21.75 mi13:41:242:48:257:455:50
7:48
#11783
23M
23.00 mi13:51:322:58:337:4610:08
8:06
#11676
24M
24.00 mi13:59:253:06:267:467:53
7:53
#11583
40K
24.85 mi14:07:143:14:157:497:49
9:09
#11823
25.2M
25.20 mi14:11:163:18:177:524:02
11:42
#12104
Finish
26.22 mi14:23:333:30:348:0212:17
12:03
#13355
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi139323864386412620(Top 44%)3232(Top 26%)3232(Top 188%)
10K6.21 mi3.10 mi13847+853853+113853+1113789(Top 49%)3832(Top 31%)3832(Top 223%)
15K9.32 mi3.11 mi13416+4313637+2163637+21612620(Top 44%)3232(Top 26%)3232(Top 188%)
20K12.43 mi3.11 mi13046+3703476+1613476+16112170(Top 43%)3094(Top 25%)3094(Top 180%)
Half13.11 mi0.68 mi12968+783429+473429+4712030(Top 42%)2980(Top 24%)2980(Top 173%)
25K15.53 mi2.42 mi12687+2813298+1313298+13111398(Top 40%)2802(Top 23%)2802(Top 163%)
30K18.64 mi3.11 mi12198+4893097+2013097+20110331(Top 36%)2454(Top 20%)2454(Top 143%)
20M20.00 mi1.36 mi11933+2652996+1012996+1019330(Top 33%)2148(Top 18%)2148(Top 125%)
21M21.00 mi1.00 mi11834+992988+82988+810836(Top 38%)3023(Top 25%)3023(Top 176%)
35K21.75 mi0.75 mi11783+512977+112977+1110884(Top 38%)3067(Top 25%)3067(Top 179%)
23M23.00 mi1.25 mi11676+1072969+82969+810740(Top 38%)3112(Top 25%)3112(Top 181%)
24M24.00 mi1.00 mi11583+932962+72962+710481(Top 37%)3047(Top 25%)3047(Top 177%)
40K24.85 mi0.85 mi11823-2403115-1533115-15317087(Top 60%)6618(Top 54%)6618(Top 385%)
25.2M25.20 mi0.35 mi12104-2813278-1633278-16322556(Top 79%)9432(Top 77%)9432(Top 549%)
Finish26.22 mi1.02 mi13355-12513957-6793957-67926865(Top 95%)11565(Top 95%)11565(Top 673%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

12620

Females

3232

F40-44

3232

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13789

Females

3832

F40-44

3832

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

12620

Females

3232

F40-44

3232

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12170

Females

3094

F40-44

3094

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

12030

Females

2980

F40-44

2980

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11398

Females

2802

F40-44

2802

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10331

Females

2454

F40-44

2454

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9330

Females

2148

F40-44

2148

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10836

Females

3023

F40-44

3023

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10884

Females

3067

F40-44

3067

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10740

Females

3112

F40-44

3112

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10481

Females

3047

F40-44

3047

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17087

Females

6618

F40-44

6618

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22556

Females

9432

F40-44

9432

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

26865

Females

11565

F40-44

11565

Passing Analysis

Category:
Athletes Passed
2959
Passed By
2382
Net Change
+577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13932
5K10K314229+85#13932#13847
10K15K47241+431#13847#13416
15K20K40838+370#13416#13046
20KHalf8911+78#13046#12968
Half25K31433+281#12968#12687
25K30K52839+489#12687#12198
30K20M27914+265#12198#11933
20M21M15051+99#11933#11834
21M35K7726+51#11834#11783
35K23M16255+107#11783#11676
23M24M13340+93#11676#11583
24M40K31271-240#11583#11823
40K25.2M0281-281#11823#12104
25.2MFinish21253-1251#12104#13355
TOTALS29592382+577
📊

Passing Visuals

Category:
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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