Zhiyong Chen

Bib: 18081M

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
24:48
3.11 mi
Rank: #16816
Start5K
24:48 | 7:59/mi
10K
49:08
6.21 mi
Rank: #16357 (+459)
5K10K
24:20 | 7:50/mi
15K
1:13:01
9.32 mi
Rank: #15712 (+645)
10K15K
23:53 | 7:42/mi
20K
1:37:20
12.43 mi
Rank: #15434 (+278)
15K20K
24:19 | 7:50/mi
HALF
1:42:34
13.11 mi
Rank: #15372 (+62)
20KHALF
5:14 | 7:41/mi
25K
2:01:56
15.53 mi
Rank: #15331 (+41)
HALF25K
19:22 | 8:00/mi
30K
2:29:11
18.64 mi
Rank: #16004 (-673)
25K30K
27:15 | 8:47/mi
20M
2:41:11
20.00 mi
Rank: #16179 (-175)
30K20M
12:00 | 8:51/mi
21M
2:51:56
21.00 mi
Rank: #16720 (-541)
20M21M
10:45 | 10:45/mi
35K
2:58:19
21.75 mi
Rank: #16737 (-17)
21M35K
6:23 | 8:32/mi
23M
3:10:43
23.00 mi
Rank: #17146 (-409)
35K23M
12:24 | 9:55/mi
24M
3:19:50
24.00 mi
Rank: #17284 (-138)
23M24M
9:07 | 9:07/mi
40K
3:28:18
24.85 mi
Rank: #17513 (-229)
24M40K
8:28 | 9:55/mi
25.2M
3:32:45
25.20 mi
Rank: #17801 (-288)
40K25.2M
4:27 | 12:55/mi
FINISH
3:42:01
26.22 mi
Rank: #17956 (-155)
25.2MFINISH
9:16 | 9:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:42:34
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:59:27
Pace9:07 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:5724:487:5924:48
7:59
-
10K
6.21 mi11:31:1749:087:5524:20
7:50
-0:09
15K
9.32 mi11:55:101:13:017:5123:53
7:42
-0:08
20K
12.43 mi12:19:291:37:207:5024:19
7:50
+0:08
HALF
13.11 mi12:24:431:42:347:505:14
7:41
-0:09
25K
15.53 mi12:44:052:01:567:5119:22
8:00
+0:19
30K
18.64 mi13:11:202:29:118:0127:15
8:47
+0:47
20M
20.00 mi13:23:202:41:118:0412:00
8:51
+0:04
21M
21.00 mi13:34:052:51:568:1210:45
10:45
+1:54
35K
21.75 mi13:40:282:58:198:126:23
8:32
-2:13
23M
23.00 mi13:52:523:10:438:1812:24
9:55
+1:23
24M
24.00 mi14:01:593:19:508:209:07
9:07
-0:48
40K
24.85 mi14:10:273:28:188:238:28
9:55
+0:48
25.2M
25.20 mi14:14:543:32:458:274:27
12:55
+3:00
FINISH
26.22 mi14:24:103:42:018:299:16
9:06
-3:49

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:28 /mi

Slowest Pace

12:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:01:56

55% of race

Time at Steady Pace

1:04:01

29% of race

Time at Slower Pace

36:04

16% of race

Average Pace: 8:28 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:06:5724:487:5924:48
7:59
#16816
10K
6.21 mi11:31:1749:087:5524:20
7:50
#16357
15K
9.32 mi11:55:101:13:017:5123:53
7:42
#15712
20K
12.43 mi12:19:291:37:207:5024:19
7:50
#15434
HALF
13.11 mi12:24:431:42:347:505:14
7:41
#15372
25K
15.53 mi12:44:052:01:567:5119:22
8:00
#15331
30K
18.64 mi13:11:202:29:118:0127:15
8:47
#16004
20M
20.00 mi13:23:202:41:118:0412:00
8:51
#16179
21M
21.00 mi13:34:052:51:568:1210:45
10:45
#16720
35K
21.75 mi13:40:282:58:198:126:23
8:32
#16737
23M
23.00 mi13:52:523:10:438:1812:24
9:55
#17146
24M
24.00 mi14:01:593:19:508:209:07
9:07
#17284
40K
24.85 mi14:10:273:28:188:238:28
9:55
#17513
25.2M
25.20 mi14:14:543:32:458:274:27
12:55
#17801
FINISH
26.22 mi14:24:103:42:018:299:16
9:06
#17956
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16816109391093914426(Top 50%)9971(Top 61%)9971(Top 669%)
10K6.21 mi3.10 mi16357+45910746+19310746+19315908(Top 55%)10594(Top 65%)10594(Top 711%)
15K9.32 mi3.11 mi15712+64510481+26510481+26514426(Top 50%)9971(Top 61%)9971(Top 669%)
20K12.43 mi3.11 mi15434+27810360+12110360+12114736(Top 51%)10040(Top 61%)10040(Top 673%)
HALF13.11 mi0.68 mi15372+6210338+2210338+2214538(Top 50%)10047(Top 61%)10047(Top 674%)
25K15.53 mi2.42 mi15331+4110305+3310305+3315290(Top 53%)10212(Top 62%)10212(Top 685%)
30K18.64 mi3.11 mi16004-67310530-22510530-22518407(Top 63%)11441(Top 70%)11441(Top 767%)
20M20.00 mi1.36 mi16179-17510585-5510585-5518123(Top 62%)11228(Top 69%)11228(Top 753%)
21M21.00 mi1.00 mi16720-54110809-22410809-22422513(Top 78%)13267(Top 81%)13267(Top 890%)
35K21.75 mi0.75 mi16737-1710806+310806+317736(Top 61%)10927(Top 67%)10927(Top 733%)
23M23.00 mi1.25 mi17146-40910951-14510951-14521855(Top 75%)12842(Top 79%)12842(Top 861%)
24M24.00 mi1.00 mi17284-13810990-3910990-3919924(Top 69%)11830(Top 72%)11830(Top 793%)
40K24.85 mi0.85 mi17513-22911064-7411064-7421633(Top 75%)12634(Top 77%)12634(Top 847%)
25.2M25.20 mi0.35 mi17801-28811177-11311177-11325901(Top 89%)14731(Top 90%)14731(Top 988%)
FINISH26.22 mi1.02 mi17956-15511237-6011237-6020882(Top 72%)12285(Top 75%)12285(Top 824%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14426

Males

9971

M55-59

9971

5K→10K

3.1 - 6.2 mi

Top 55%
×5
+79ft-138ft

Overall

15908

Males

10594

M55-59

10594

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14426

Males

9971

M55-59

9971

15K→20K

9.3 - 12.4 mi

Top 51%
×5
+106ft-86ft

Overall

14736

Males

10040

M55-59

10040

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14538

Males

10047

M55-59

10047

HALF→25K

13.1 - 15.5 mi

Top 53%
×4
+66ft-88ft

Overall

15290

Males

10212

M55-59

10212

25K→30K

15.5 - 18.6 mi

Top 63%
×9
+181ft-148ft

Overall

18407

Males

11441

M55-59

11441

30K→20M

18.6 - 20.0 mi

Top 62%
×5
+64ft-50ft

Overall

18123

Males

11228

M55-59

11228

20M→21M

20.0 - 21.0 mi

Top 78%
×8
+106ft-24ft

Overall

22513

Males

13267

M55-59

13267

21M→35K

21.0 - 21.8 mi

Top 61%
×7
+17ft-86ft

Overall

17736

Males

10927

M55-59

10927

35K→23M

21.8 - 23.0 mi

Top 75%
×5
+23ft-63ft

Overall

21855

Males

12842

M55-59

12842

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

19924

Males

11830

M55-59

11830

24M→40K

24.0 - 24.9 mi

Top 75%
×1
+6ft-20ft

Overall

21633

Males

12634

M55-59

12634

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1
+13ft-16ft

Overall

25901

Males

14731

M55-59

14731

25.2M→FINISH

25.2 - 26.2 mi

Top 72%
×2
+22ft-21ft

Overall

20882

Males

12285

M55-59

12285

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2129
Passed By
3269
Net Change
-1140
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16816
5K10K591132+459#16816#16357
10K15K68035+645#16357#15712
15K20K32345+278#15712#15434
20KHALF7614+62#15434#15372
HALF25K152111+41#15372#15331
25K30K67740-673#15331#16004
30K20M46221-175#16004#16179
20M21M20561-541#16179#16720
21M35K5572-17#16720#16737
35K23M25434-409#16737#17146
23M24M46184-138#17146#17284
24M40K17246-229#17284#17513
40K25.2M2290-288#17513#17801
25.2MFINISH29184-155#17801#17956
TOTALS21293269-1140
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing