Jong Cheul Lee

Bib: 17215M

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
26:30
Rank: #17738
Start5K
8:32/mi
26:30 split
10K· 6.21 mi
52:37
Rank: #17695 (+43)
5K10K
8:24/mi
26:07 split
15K· 9.32 mi
1:18:10
Rank: #17106 (+589)
10K15K
8:13/mi
25:33 split
20K· 12.43 mi
1:43:32
Rank: #16495 (+611)
15K20K
8:10/mi
25:22 split
Half· 13.11 mi
1:49:41
Rank: #16740 (-245)
20KHalf
9:01/mi
6:09 split
25K· 15.53 mi
2:09:22
Rank: #16241 (+499)
Half25K
8:07/mi
19:41 split
30K· 18.64 mi
2:35:11
Rank: #15640 (+601)
25K30K
8:19/mi
25:49 split
20M
2:46:36
Rank: #15444 (+196)
30K20M
8:24/mi
11:25 split
21M
2:55:56
Rank: #15376 (+68)
20M21M
9:20/mi
9:20 split
35K· 21.75 mi
3:02:43
Rank: #15499 (-123)
21M35K
9:04/mi
6:47 split
23M
3:13:17
Rank: #15311 (+188)
35K23M
8:26/mi
10:34 split
24M
3:21:25
Rank: #15147 (+164)
23M24M
8:08/mi
8:08 split
40K· 24.85 mi
3:28:39
Rank: #15077 (+70)
24M40K
8:28/mi
7:14 split
25.2M
3:31:47
Rank: #15032 (+45)
40K25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:40:52
Rank: #15153 (-121)
25.2MFinish
8:55/mi
9:05 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:41
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:51:11
Pace8:29 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4826:308:3226:30
8:32
-
10K
6.21 mi11:44:5552:378:2826:07
8:24
-0:08
15K
9.32 mi12:10:281:18:108:2325:33
8:13
-0:11
20K
12.43 mi12:35:501:43:328:2025:22
8:10
-0:03
Half
13.11 mi12:41:591:49:418:226:09
9:01
+0:51
25K
15.53 mi13:01:402:09:228:2019:41
8:07
-0:54
30K
18.64 mi13:27:292:35:118:1925:49
8:19
+0:12
20M
20.00 mi13:38:542:46:368:2011:25
8:24
+0:05
21M
21.00 mi13:48:142:55:568:239:20
9:20
+0:56
35K
21.75 mi13:55:013:02:438:246:47
9:04
-0:16
23M
23.00 mi14:05:353:13:178:2410:34
8:26
-0:38
24M
24.00 mi14:13:433:21:258:248:08
8:08
-0:18
40K
24.85 mi14:20:573:28:398:247:14
8:28
+0:20
25.2M
25.20 mi14:24:053:31:478:243:08
9:05
+0:37
Finish
26.22 mi14:33:103:40:528:269:05
8:55
-0:10

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

8:07 /mi

Average Pace

8:26 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:28

88% of race

Time at Steady Pace

25:24

12% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi11:18:4826:308:3226:30
8:32
#17738
10K
6.21 mi11:44:5552:378:2826:07
8:24
#17695
15K
9.32 mi12:10:281:18:108:2325:33
8:13
#17106
20K
12.43 mi12:35:501:43:328:2025:22
8:10
#16495
Half
13.11 mi12:41:591:49:418:226:09
9:01
#16740
25K
15.53 mi13:01:402:09:228:2019:41
8:07
#16241
30K
18.64 mi13:27:292:35:118:1925:49
8:19
#15640
20M
20.00 mi13:38:542:46:368:2011:25
8:24
#15444
21M
21.00 mi13:48:142:55:568:239:20
9:20
#15376
35K
21.75 mi13:55:013:02:438:246:47
9:04
#15499
23M
23.00 mi14:05:353:13:178:2410:34
8:26
#15311
24M
24.00 mi14:13:433:21:258:248:08
8:08
#15147
40K
24.85 mi14:20:573:28:398:247:14
8:28
#15077
25.2M
25.20 mi14:24:053:31:478:243:08
9:05
#15032
Finish
26.22 mi14:33:103:40:528:269:05
8:55
#15153
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17738113201132016010(Top 60%)10684(Top 70%)10684(Top 751%)
10K6.21 mi3.10 mi17695+4311329-911329-917606(Top 66%)11338(Top 75%)11338(Top 797%)
15K9.32 mi3.11 mi17106+58911115+21411115+21416010(Top 60%)10684(Top 70%)10684(Top 751%)
20K12.43 mi3.11 mi16495+61110868+24710868+24714696(Top 55%)10156(Top 67%)10156(Top 714%)
Half13.11 mi0.68 mi16740-24510948-8010948-8020460(Top 77%)12485(Top 82%)12485(Top 878%)
25K15.53 mi2.42 mi16241+49910742+20610742+20613616(Top 51%)9612(Top 63%)9612(Top 676%)
30K18.64 mi3.11 mi15640+60110475+26710475+26713087(Top 49%)9270(Top 61%)9270(Top 652%)
20M20.00 mi1.36 mi15444+19610366+10910366+10913034(Top 49%)9144(Top 60%)9144(Top 643%)
21M21.00 mi1.00 mi15376+6810313+5310313+5315156(Top 57%)9991(Top 66%)9991(Top 703%)
35K21.75 mi0.75 mi15499-12310348-3510348-3518130(Top 68%)11193(Top 74%)11193(Top 787%)
23M23.00 mi1.25 mi15311+18810255+9310255+9312845(Top 48%)8851(Top 58%)8851(Top 622%)
24M24.00 mi1.00 mi15147+16410184+7110184+7112141(Top 46%)8467(Top 56%)8467(Top 595%)
40K24.85 mi0.85 mi15077+7010136+4810136+4813068(Top 49%)8817(Top 58%)8817(Top 620%)
25.2M25.20 mi0.35 mi15032+4510106+3010106+3012979(Top 49%)8759(Top 58%)8759(Top 616%)
Finish26.22 mi1.02 mi15153-12110133-2710133-2717536(Top 66%)10836(Top 71%)10836(Top 762%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

16010

Males

10684

M55-59

10684

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17606

Males

11338

M55-59

11338

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

16010

Males

10684

M55-59

10684

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14696

Males

10156

M55-59

10156

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

20460

Males

12485

M55-59

12485

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13616

Males

9612

M55-59

9612

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13087

Males

9270

M55-59

9270

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13034

Males

9144

M55-59

9144

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15156

Males

9991

M55-59

9991

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18130

Males

11193

M55-59

11193

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12845

Males

8851

M55-59

8851

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12141

Males

8467

M55-59

8467

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13068

Males

8817

M55-59

8817

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12979

Males

8759

M55-59

8759

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

17536

Males

10836

M55-59

10836

Passing Analysis

Category:
Athletes Passed
3596
Passed By
1011
Net Change
+2585
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17738
5K10K336293+43#17738#17695
10K15K62031+589#17695#17106
15K20K62817+611#17106#16495
20KHalf4249-245#16495#16740
Half25K5001+499#16740#16241
25K30K6098+601#16241#15640
30K20M2037+196#15640#15444
20M21M12153+68#15444#15376
21M35K22145-123#15376#15499
35K23M20214+188#15499#15311
23M24M1717+164#15311#15147
24M40K9626+70#15147#15077
40K25.2M5712+45#15077#15032
25.2MFinish27148-121#15032#15153
TOTALS35961011+2585
📊

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