Sijian Zhang

Bib: 18019M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:04
Rank: #23431
Start5K
31:04 | 10:00/mi
10K· 6.21 mi
59:10
Rank: #22381 (+1050)
5K10K
28:06 | 9:03/mi
15K· 9.32 mi
1:26:16
Rank: #21548 (+833)
10K15K
27:06 | 8:43/mi
20K· 12.43 mi
1:53:22
Rank: #20878 (+670)
15K20K
27:06 | 8:43/mi
Half· 13.11 mi
1:59:19
Rank: #20789 (+89)
20KHalf
5:57 | 8:43/mi
25K· 15.53 mi
2:22:00
Rank: #20723 (+66)
Half25K
22:41 | 9:21/mi
30K· 18.64 mi
2:52:38
Rank: #20669 (+54)
25K30K
30:38 | 9:52/mi
20M
3:06:46
Rank: #20734 (-65)
30K20M
14:08 | 10:24/mi
21M
3:17:15
Rank: #20651 (+83)
20M21M
10:29 | 10:29/mi
35K· 21.75 mi
3:24:36
Rank: #20654 (-3)
21M35K
7:21 | 9:49/mi
23M
3:37:35
Rank: #20666 (-12)
35K23M
12:59 | 10:22/mi
24M
3:47:51
Rank: #20717 (-51)
23M24M
10:16 | 10:16/mi
40K· 24.85 mi
3:56:56
Rank: #20734 (-17)
24M40K
9:05 | 10:37/mi
25.2M
4:00:58
Rank: #20766 (-32)
40K25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
4:10:33
Rank: #20714 (+52)
25.2MFinish
9:35 | 9:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:19
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:11:14
Pace10:01 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0731:0410:0031:04
10:00
-
10K
6.21 mi12:17:1359:109:3128:06
9:03
-0:57
15K
9.32 mi12:44:191:26:169:1527:06
8:43
-0:20
20K
12.43 mi13:11:251:53:229:0727:06
8:43
0:00
Half
13.11 mi13:17:221:59:199:065:57
8:43
0:00
25K
15.53 mi13:40:032:22:009:0822:41
9:21
+0:38
30K
18.64 mi14:10:412:52:389:1630:38
9:52
+0:31
20M
20.00 mi14:24:493:06:469:2014:08
10:24
+0:32
21M
21.00 mi14:35:183:17:159:2410:29
10:29
+0:05
35K
21.75 mi14:42:393:24:369:247:21
9:49
-0:40
23M
23.00 mi14:55:383:37:359:2812:59
10:22
+0:33
24M
24.00 mi15:05:543:47:519:3010:16
10:16
-0:06
40K
24.85 mi15:14:593:56:569:329:05
10:37
+0:21
25.2M
25.20 mi15:19:014:00:589:344:02
11:42
+1:05
Finish
26.22 mi15:28:364:10:339:349:35
9:24
-2:18

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

8:43 /mi

Average Pace

9:34 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:31

48% of race

Time at Steady Pace

1:19:19

32% of race

Time at Slower Pace

50:43

20% of race

Average Pace: 9:33 /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 mi11:49:0731:0410:0031:04
10:00
#23431
10K
6.21 mi12:17:1359:109:3128:06
9:03
#22381
15K
9.32 mi12:44:191:26:169:1527:06
8:43
#21548
20K
12.43 mi13:11:251:53:229:0727:06
8:43
#20878
Half
13.11 mi13:17:221:59:199:065:57
8:43
#20789
25K
15.53 mi13:40:032:22:009:0822:41
9:21
#20723
30K
18.64 mi14:10:412:52:389:1630:38
9:52
#20669
20M
20.00 mi14:24:493:06:469:2014:08
10:24
#20734
21M
21.00 mi14:35:183:17:159:2410:29
10:29
#20651
35K
21.75 mi14:42:393:24:369:247:21
9:49
#20654
23M
23.00 mi14:55:383:37:359:2812:59
10:22
#20666
24M
24.00 mi15:05:543:47:519:3010:16
10:16
#20717
40K
24.85 mi15:14:593:56:569:329:05
10:37
#20734
25.2M
25.20 mi15:19:014:00:589:344:02
11:42
#20766
Finish
26.22 mi15:28:364:10:339:349:35
9:24
#20714
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23431137881378819097(Top 72%)11918(Top 79%)11918(Top 838%)
10K6.21 mi3.10 mi22381+105013318+47013318+47021055(Top 79%)12738(Top 84%)12738(Top 896%)
15K9.32 mi3.11 mi21548+83312940+37812940+37819097(Top 72%)11918(Top 79%)11918(Top 838%)
20K12.43 mi3.11 mi20878+67012649+29112649+29118252(Top 69%)11592(Top 76%)11592(Top 815%)
Half13.11 mi0.68 mi20789+8912613+3612613+3619046(Top 72%)11922(Top 79%)11922(Top 838%)
25K15.53 mi2.42 mi20723+6612593+2012593+2020368(Top 77%)12435(Top 82%)12435(Top 874%)
30K18.64 mi3.11 mi20669+5412556+3712556+3720638(Top 78%)12487(Top 82%)12487(Top 878%)
20M20.00 mi1.36 mi20734-6512571-1512571-1521516(Top 81%)12787(Top 84%)12787(Top 899%)
21M21.00 mi1.00 mi20651+8312521+5012521+5019543(Top 73%)11856(Top 78%)11856(Top 834%)
35K21.75 mi0.75 mi20654-312514+712514+720814(Top 78%)12392(Top 82%)12392(Top 871%)
23M23.00 mi1.25 mi20666-1212499+1512499+1520991(Top 79%)12450(Top 82%)12450(Top 876%)
24M24.00 mi1.00 mi20717-5112509-1012509-1021468(Top 81%)12616(Top 83%)12616(Top 887%)
40K24.85 mi0.85 mi20734-17125091250921509(Top 81%)12588(Top 83%)12588(Top 885%)
25.2M25.20 mi0.35 mi20766-3212521-1212521-1221934(Top 82%)12811(Top 84%)12811(Top 901%)
Finish26.22 mi1.02 mi20714+5212485+3612485+3619773(Top 74%)11878(Top 78%)11878(Top 835%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19097

Males

11918

M55-59

11918

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

21055

Males

12738

M55-59

12738

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19097

Males

11918

M55-59

11918

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

18252

Males

11592

M55-59

11592

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

19046

Males

11922

M55-59

11922

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

20368

Males

12435

M55-59

12435

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20638

Males

12487

M55-59

12487

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21516

Males

12787

M55-59

12787

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19543

Males

11856

M55-59

11856

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20814

Males

12392

M55-59

12392

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

20991

Males

12450

M55-59

12450

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21468

Males

12616

M55-59

12616

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21509

Males

12588

M55-59

12588

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21934

Males

12811

M55-59

12811

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19773

Males

11878

M55-59

11878

Passing Analysis

Category:
Athletes Passed
3372
Passed By
655
Net Change
+2717
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23431
5K10K10577+1050#23431#22381
10K15K8341+833#22381#21548
15K20K6711+670#21548#20878
20KHalf967+89#20878#20789
Half25K13670+66#20789#20723
25K30K173119+54#20723#20669
30K20M59124-65#20669#20734
20M21M11128+83#20734#20651
21M35K3942-3#20651#20654
35K23M6981-12#20654#20666
23M24M2475-51#20666#20717
24M40K3350-17#20717#20734
40K25.2M840-32#20734#20766
25.2MFinish6210+52#20766#20714
TOTALS3372655+2717
📊

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