Yichun Sun

Bib: 14417F

AB

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 36%
Gender (Female)
#0 / 10924
Top 21%
Masters (Masters Women)
#0 / 6263
Top 10%
Division (F45-49)
#0 / 1753
Top 11%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:58
Rank: #12416
Start5K
7:43/mi
23:58 split
10K· 6.21 mi
48:04
Rank: #12371 (+45)
5K10K
7:45/mi
24:06 split
15K· 9.32 mi
1:12:14
Rank: #12123 (+248)
10K15K
7:47/mi
24:10 split
20K· 12.43 mi
1:36:45
Rank: #11791 (+332)
15K20K
7:53/mi
24:31 split
Half· 13.11 mi
1:42:01
Rank: #11723 (+68)
20KHalf
7:43/mi
5:16 split
25K· 15.53 mi
2:01:16
Rank: #11328 (+395)
Half25K
7:56/mi
19:15 split
30K· 18.64 mi
2:26:41
Rank: #10740 (+588)
25K30K
8:11/mi
25:25 split
20M
2:37:50
Rank: #10440 (+300)
30K20M
8:12/mi
11:09 split
21M
2:46:34
Rank: #10167 (+273)
20M21M
8:44/mi
8:44 split
35K· 21.75 mi
2:52:30
Rank: #10022 (+145)
21M35K
7:56/mi
5:56 split
23M
3:02:51
Rank: #9775 (+247)
35K23M
8:16/mi
10:21 split
24M
3:10:55
Rank: #9595 (+180)
23M24M
8:04/mi
8:04 split
40K· 24.85 mi
3:17:53
Rank: #9438 (+157)
24M40K
8:09/mi
6:58 split
25.2M
3:21:04
Rank: #9399 (+39)
40K25.2M
9:14/mi
3:11 split
Finish· 26.22 mi
3:28:56
Rank: #9270 (+129)
25.2MFinish
7:43/mi
7:52 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:01
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:46:55
Pace8:09 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4423:587:4323:58
7:43
-
10K
6.21 mi11:19:5048:047:4424:06
7:45
+0:02
15K
9.32 mi11:44:001:12:147:4524:10
7:47
+0:02
20K
12.43 mi12:08:311:36:457:4724:31
7:53
+0:06
Half
13.11 mi12:13:471:42:017:475:16
7:43
-0:10
25K
15.53 mi12:33:022:01:167:4819:15
7:56
+0:13
30K
18.64 mi12:58:272:26:417:5225:25
8:11
+0:15
20M
20.00 mi13:09:362:37:507:5311:09
8:12
+0:01
21M
21.00 mi13:18:202:46:347:568:44
8:44
+0:32
35K
21.75 mi13:24:162:52:307:565:56
7:56
-0:48
23M
23.00 mi13:34:373:02:517:5710:21
8:16
+0:20
24M
24.00 mi13:42:413:10:557:578:04
8:04
-0:12
40K
24.85 mi13:49:393:17:537:586:58
8:09
+0:05
25.2M
25.20 mi13:52:503:21:047:593:11
9:14
+1:05
Finish
26.22 mi14:00:423:28:567:587:52
7:43
-1:31

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

7:43 /mi

Average Pace

7:58 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:01

94% of race

Time at Steady Pace

8:44

4% of race

Time at Slower Pace

3:11

2% of race

Average Pace: 7:58 /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 mi10:55:4423:587:4323:58
7:43
#12416
10K
6.21 mi11:19:5048:047:4424:06
7:45
#12371
15K
9.32 mi11:44:001:12:147:4524:10
7:47
#12123
20K
12.43 mi12:08:311:36:457:4724:31
7:53
#11791
Half
13.11 mi12:13:471:42:017:475:16
7:43
#11723
25K
15.53 mi12:33:022:01:167:4819:15
7:56
#11328
30K
18.64 mi12:58:272:26:417:5225:25
8:11
#10740
20M
20.00 mi13:09:362:37:507:5311:09
8:12
#10440
21M
21.00 mi13:18:202:46:347:568:44
8:44
#10167
35K
21.75 mi13:24:162:52:307:565:56
7:56
#10022
23M
23.00 mi13:34:373:02:517:5710:21
8:16
#9775
24M
24.00 mi13:42:413:10:557:578:04
8:04
#9595
40K
24.85 mi13:49:393:17:537:586:58
8:09
#9438
25.2M
25.20 mi13:52:503:21:047:593:11
9:14
#9399
Finish
26.22 mi14:00:423:28:567:587:52
7:43
#9270
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi124163364336411767(Top 46%)3104(Top 28%)3104(Top 177%)
10K6.21 mi3.10 mi12371+453379-153379-1512302(Top 48%)3346(Top 31%)3346(Top 191%)
15K9.32 mi3.11 mi12123+2483267+1123267+11211767(Top 46%)3104(Top 28%)3104(Top 177%)
20K12.43 mi3.11 mi11791+3323105+1623105+16211080(Top 43%)2850(Top 26%)2850(Top 163%)
Half13.11 mi0.68 mi11723+683073+323073+3210780(Top 42%)2677(Top 25%)2677(Top 153%)
25K15.53 mi2.42 mi11328+3952897+1762897+1769820(Top 38%)2398(Top 22%)2398(Top 137%)
30K18.64 mi3.11 mi10740+5882688+2092688+2098911(Top 35%)2167(Top 20%)2167(Top 124%)
20M20.00 mi1.36 mi10440+3002596+922596+927890(Top 31%)1928(Top 18%)1928(Top 110%)
21M21.00 mi1.00 mi10167+2732516+802516+807326(Top 29%)1870(Top 17%)1870(Top 107%)
35K21.75 mi0.75 mi10022+1452482+342482+347408(Top 29%)1956(Top 18%)1956(Top 112%)
23M23.00 mi1.25 mi9775+2472423+592423+597170(Top 28%)1985(Top 18%)1985(Top 113%)
24M24.00 mi1.00 mi9595+1802377+462377+467019(Top 27%)2009(Top 18%)2009(Top 115%)
40K24.85 mi0.85 mi9438+1572341+362341+366554(Top 26%)1912(Top 18%)1912(Top 109%)
25.2M25.20 mi0.35 mi9399+392340+12340+17655(Top 30%)2494(Top 23%)2494(Top 142%)
Finish26.22 mi1.02 mi9270+1292318+222318+226882(Top 27%)2060(Top 19%)2060(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

11767

Females

3104

F45-49

3104

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12302

Females

3346

F45-49

3346

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

11767

Females

3104

F45-49

3104

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11080

Females

2850

F45-49

2850

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

10780

Females

2677

F45-49

2677

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

9820

Females

2398

F45-49

2398

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

8911

Females

2167

F45-49

2167

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

7890

Females

1928

F45-49

1928

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7326

Females

1870

F45-49

1870

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7408

Females

1956

F45-49

1956

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7170

Females

1985

F45-49

1985

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7019

Females

2009

F45-49

2009

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6554

Females

1912

F45-49

1912

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7655

Females

2494

F45-49

2494

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

6882

Females

2060

F45-49

2060

Passing Analysis

Category:
Athletes Passed
3837*
Passed By
691
Net Change
+3146
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12416
5K10K322277+45#12416#12371
10K15K348100+248#12371#12123
15K20K40977+332#12123#11791
20KHalf779+68#11791#11723
Half25K41722+395#11723#11328
25K30K64254+588#11328#10740
30K20M31212+300#10740#10440
20M21M29320+273#10440#10167
21M35K158*13+145#10167#10022
35K23M272*25+247#10022#9775
23M24M194*14+180#9775#9595
24M40K17922+157#9595#9438
40K25.2M6122+39#9438#9399
25.2MFinish15324+129#9399#9270
TOTALS3837*691+3146

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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