Dongchen Li

Bib: 5682M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 23%
Gender (Male)
#0 / 14578
Top 34%
Masters (Masters Men)
#0 / 9729
Top 23%
Division (M45-49)
#0 / 2218
Top 32%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:30
Rank: #1975
Start5K
19:30 | 6:17/mi
10K· 6.21 mi
42:12
Rank: #5348 (-3373)
5K10K
22:42 | 7:18/mi
15K· 9.32 mi
1:03:41
Rank: #5434 (-86)
10K15K
21:29 | 6:55/mi
20K· 12.43 mi
1:27:05
Rank: #6218 (-784)
15K20K
23:24 | 7:32/mi
Half· 13.11 mi
1:32:23
Rank: #6421 (-203)
20KHalf
5:18 | 7:46/mi
25K· 15.53 mi
1:50:23
Rank: #6372 (+49)
Half25K
18:00 | 7:25/mi
30K· 18.64 mi
2:13:58
Rank: #6083 (+289)
25K30K
23:35 | 7:35/mi
20M
2:25:03
Rank: #6138 (-55)
30K20M
11:05 | 8:09/mi
21M
2:33:54
Rank: #6134 (+4)
20M21M
8:51 | 8:51/mi
35K· 21.75 mi
2:39:58
Rank: #6157 (-23)
21M35K
6:04 | 8:07/mi
23M
2:50:28
Rank: #6148 (+9)
35K23M
10:30 | 8:23/mi
24M
2:57:56
Rank: #5972 (+176)
23M24M
7:28 | 7:28/mi
40K· 24.85 mi
3:05:07
Rank: #5965 (+7)
24M40K
7:11 | 8:24/mi
25.2M
3:08:03
Rank: #5902 (+63)
40K25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:15:59
Rank: #5906 (-4)
25.2MFinish
7:56 | 7:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:23
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:43:36
Pace7:54 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0419:306:1719:30
6:17
-
10K
6.21 mi10:46:4642:126:4722:42
7:18
+1:01
15K
9.32 mi11:08:151:03:416:5021:29
6:55
-0:23
20K
12.43 mi11:31:391:27:057:0023:24
7:32
+0:37
Half
13.11 mi11:36:571:32:237:035:18
7:46
+0:14
25K
15.53 mi11:54:571:50:237:0618:00
7:25
-0:21
30K
18.64 mi12:18:322:13:587:1123:35
7:35
+0:10
20M
20.00 mi12:29:372:25:037:1511:05
8:09
+0:34
21M
21.00 mi12:38:282:33:547:208:51
8:51
+0:42
35K
21.75 mi12:44:322:39:587:216:04
8:07
-0:44
23M
23.00 mi12:55:022:50:287:2510:30
8:23
+0:16
24M
24.00 mi13:02:302:57:567:257:28
7:28
-0:55
40K
24.85 mi13:09:413:05:077:277:11
8:24
+0:56
25.2M
25.20 mi13:12:373:08:037:282:56
8:30
+0:06
Finish
26.22 mi13:20:333:15:597:297:56
7:47
-0:43

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

6:17 /mi

Average Pace

7:29 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:41

42% of race

Time at Steady Pace

1:07:41

35% of race

Time at Slower Pace

46:37

24% of race

Average Pace: 7:28 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:24:0419:306:1719:30
6:17
#1975
10K
6.21 mi10:46:4642:126:4722:42
7:18
#5348
15K
9.32 mi11:08:151:03:416:5021:29
6:55
#5434
20K
12.43 mi11:31:391:27:057:0023:24
7:32
#6218
Half
13.11 mi11:36:571:32:237:035:18
7:46
#6421
25K
15.53 mi11:54:571:50:237:0618:00
7:25
#6372
30K
18.64 mi12:18:322:13:587:1123:35
7:35
#6083
20M
20.00 mi12:29:372:25:037:1511:05
8:09
#6138
21M
21.00 mi12:38:282:33:547:208:51
8:51
#6134
35K
21.75 mi12:44:322:39:587:216:04
8:07
#6157
23M
23.00 mi12:55:022:50:287:2510:30
8:23
#6148
24M
24.00 mi13:02:302:57:567:257:28
7:28
#5972
40K
24.85 mi13:09:413:05:077:277:11
8:24
#5965
25.2M
25.20 mi13:12:373:08:037:282:56
8:30
#5902
Finish
26.22 mi13:20:333:15:597:297:56
7:47
#5906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1975191119115666(Top 22%)5139(Top 35%)5139(Top 232%)
10K6.21 mi3.10 mi5348-33734923-30124923-30128712(Top 34%)7174(Top 49%)7174(Top 323%)
15K9.32 mi3.11 mi5434-864989-664989-665666(Top 22%)5139(Top 35%)5139(Top 232%)
20K12.43 mi3.11 mi6218-7845551-5625551-5628583(Top 34%)6940(Top 48%)6940(Top 313%)
Half13.11 mi0.68 mi6421-2035689-1385689-13811014(Top 43%)8159(Top 56%)8159(Top 368%)
25K15.53 mi2.42 mi6372+495621+685621+686533(Top 26%)5531(Top 38%)5531(Top 249%)
30K18.64 mi3.11 mi6083+2895358+2635358+2635573(Top 22%)4729(Top 32%)4729(Top 213%)
20M20.00 mi1.36 mi6138-555364-65364-67580(Top 30%)5759(Top 40%)5759(Top 260%)
21M21.00 mi1.00 mi6134+45329+355329+357824(Top 31%)5704(Top 39%)5704(Top 257%)
35K21.75 mi0.75 mi6157-235318+115318+118409(Top 33%)5956(Top 41%)5956(Top 269%)
23M23.00 mi1.25 mi6148+95261+575261+577808(Top 31%)5484(Top 38%)5484(Top 247%)
24M24.00 mi1.00 mi5972+1765119+1425119+1424013(Top 16%)3319(Top 23%)3319(Top 150%)
40K24.85 mi0.85 mi5965+75086+335086+337825(Top 31%)5283(Top 36%)5283(Top 238%)
25.2M25.20 mi0.35 mi5902+635026+605026+604460(Top 17%)3446(Top 24%)3446(Top 155%)
Finish26.22 mi1.02 mi5906-44996+304996+307246(Top 28%)4997(Top 34%)4997(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5666

Males

5139

M45-49

5139

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

8712

Males

7174

M45-49

7174

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5666

Males

5139

M45-49

5139

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8583

Males

6940

M45-49

6940

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11014

Males

8159

M45-49

8159

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

6533

Males

5531

M45-49

5531

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5573

Males

4729

M45-49

4729

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

7580

Males

5759

M45-49

5759

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

7824

Males

5704

M45-49

5704

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8409

Males

5956

M45-49

5956

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

7808

Males

5484

M45-49

5484

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4013

Males

3319

M45-49

3319

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

7825

Males

5283

M45-49

5283

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4460

Males

3446

M45-49

3446

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7246

Males

4997

M45-49

4997

Passing Analysis

Category:
Athletes Passed
1491
Passed By
5422
Net Change
-3931
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1975
5K10K13374-3373#1975#5348
10K15K120206-86#5348#5434
15K20K34818-784#5434#6218
20KHalf5208-203#6218#6421
Half25K165116+49#6421#6372
25K30K37384+289#6372#6083
30K20M85140-55#6083#6138
20M21M113109+4#6138#6134
21M35K6487-23#6134#6157
35K23M116107+9#6157#6148
23M24M18812+176#6148#5972
24M40K8578+7#5972#5965
40K25.2M707+63#5965#5902
25.2MFinish7276-4#5902#5906
TOTALS14915422-3931
📊

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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Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing