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BOSTON MARATHON 2023

Kwang Young Cho

Bib: 22055•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:46
Rank: #20147
Start → 5K
8:56/mi
27:46 split
10K· 6.21 mi
55:45
Rank: #20534 (-387)
5K → 10K
9:00/mi
27:59 split
15K· 9.32 mi
1:24:06
Rank: #20675 (-141)
10K → 15K
9:07/mi
28:21 split
20K· 12.43 mi
1:52:49
Rank: #20684 (-9)
15K → 20K
9:15/mi
28:43 split
Half· 13.11 mi
1:58:59
Rank: #20672 (+12)
20K → Half
9:02/mi
6:10 split
25K· 15.53 mi
2:22:01
Rank: #20726 (-54)
Half → 25K
9:30/mi
23:02 split
30K· 18.64 mi
2:51:40
Rank: #20490 (+236)
25K → 30K
9:33/mi
29:39 split
20M
3:04:28
Rank: #20339 (+151)
30K → 20M
9:25/mi
12:48 split
21M
3:15:00
Rank: #20280 (+59)
20M → 21M
10:32/mi
10:32 split
35K· 21.75 mi
3:21:45
Rank: #20206 (+74)
21M → 35K
9:01/mi
6:45 split
23M
3:33:48
Rank: #20115 (+91)
35K → 23M
9:37/mi
12:03 split
24M
3:43:19
Rank: #20089 (+26)
23M → 24M
9:31/mi
9:31 split
40K· 24.85 mi
3:51:17
Rank: #19999 (+90)
24M → 40K
9:19/mi
7:58 split
25.2M
3:54:46
Rank: #19964 (+35)
40K → 25.2M
10:06/mi
3:29 split
Finish· 26.22 mi
4:04:15
Rank: #19941 (+23)
25.2M → Finish
9:18/mi
9:29 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:59
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:05:16
Pace9:33 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3827:468:5627:46
8:56
-
10K
6.21 mi11:52:3755:458:5827:59
9:00
+0:04
15K
9.32 mi12:20:581:24:069:0128:21
9:07
+0:07
20K
12.43 mi12:49:411:52:499:0528:43
9:15
+0:08
Half
13.11 mi12:55:511:58:599:056:10
9:02
-0:13
25K
15.53 mi13:18:532:22:019:0923:02
9:30
+0:28
30K
18.64 mi13:48:322:51:409:1329:39
9:33
+0:03
20M
20.00 mi14:01:203:04:289:1312:48
9:25
-0:08
21M
21.00 mi14:11:523:15:009:1710:32
10:32
+1:07
35K
21.75 mi14:18:373:21:459:176:45
9:01
-1:31
23M
23.00 mi14:30:403:33:489:1812:03
9:37
+0:36
24M
24.00 mi14:40:113:43:199:189:31
9:31
-0:06
40K
24.85 mi14:48:093:51:179:187:58
9:19
-0:12
25.2M
25.20 mi14:51:383:54:469:193:29
10:06
+0:47
Finish
26.22 mi15:01:074:04:159:199:29
9:18
-0:48

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

8:56 /mi

Average Pace

9:19 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:50:14

94% of race

Time at Steady Pace

14:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:19 /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 mi11:24:3827:468:5627:46
8:56
#20147
10K
6.21 mi11:52:3755:458:5827:59
9:00
#20534
15K
9.32 mi12:20:581:24:069:0128:21
9:07
#20675
20K
12.43 mi12:49:411:52:499:0528:43
9:15
#20684
Half
13.11 mi12:55:511:58:599:056:10
9:02
#20672
25K
15.53 mi13:18:532:22:019:0923:02
9:30
#20726
30K
18.64 mi13:48:322:51:409:1329:39
9:33
#20490
20M
20.00 mi14:01:203:04:289:1312:48
9:25
#20339
21M
21.00 mi14:11:523:15:009:1710:32
10:32
#20280
35K
21.75 mi14:18:373:21:459:176:45
9:01
#20206
23M
23.00 mi14:30:403:33:489:1812:03
9:37
#20115
24M
24.00 mi14:40:113:43:199:189:31
9:31
#20089
40K
24.85 mi14:48:093:51:179:187:58
9:19
#19999
25.2M
25.20 mi14:51:383:54:469:193:29
10:06
#19964
Finish
26.22 mi15:01:074:04:159:199:29
9:18
#19941
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20147122181221821032(Top 79%)12759(Top 84%)12759(Top 1149%)
10K6.21 mi3.10 mi20534-38712461-24312461-24320902(Top 79%)12673(Top 84%)12673(Top 1142%)
15K9.32 mi3.11 mi20675-14112545-8412545-8421032(Top 79%)12759(Top 84%)12759(Top 1149%)
20K12.43 mi3.11 mi20684-912569-2412569-2420736(Top 78%)12633(Top 83%)12633(Top 1138%)
Half13.11 mi0.68 mi20672+1212563+612563+620568(Top 77%)12540(Top 83%)12540(Top 1130%)
25K15.53 mi2.42 mi20726-5412595-3212595-3220824(Top 78%)12623(Top 83%)12623(Top 1137%)
30K18.64 mi3.11 mi20490+23612467+12812467+12819591(Top 74%)12041(Top 79%)12041(Top 1085%)
20M20.00 mi1.36 mi20339+15112383+8412383+8418534(Top 70%)11469(Top 76%)11469(Top 1033%)
21M21.00 mi1.00 mi20280+5912347+3612347+3619688(Top 74%)11909(Top 78%)11909(Top 1073%)
35K21.75 mi0.75 mi20206+7412305+4212305+4217990(Top 68%)11143(Top 73%)11143(Top 1004%)
23M23.00 mi1.25 mi20115+9112260+4512260+4518819(Top 71%)11498(Top 76%)11498(Top 1036%)
24M24.00 mi1.00 mi20089+2612242+1812242+1819269(Top 72%)11648(Top 77%)11648(Top 1049%)
40K24.85 mi0.85 mi19999+9012195+4712195+4717589(Top 66%)10844(Top 71%)10844(Top 977%)
25.2M25.20 mi0.35 mi19964+3512175+2012175+2017754(Top 67%)10913(Top 72%)10913(Top 983%)
Finish26.22 mi1.02 mi19941+2312166+912166+919384(Top 73%)11699(Top 77%)11699(Top 1054%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

21032

Males

12759

M60-64

12759

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20902

Males

12673

M60-64

12673

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

21032

Males

12759

M60-64

12759

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20736

Males

12633

M60-64

12633

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

20568

Males

12540

M60-64

12540

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

20824

Males

12623

M60-64

12623

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

19591

Males

12041

M60-64

12041

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18534

Males

11469

M60-64

11469

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19688

Males

11909

M60-64

11909

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

17990

Males

11143

M60-64

11143

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

18819

Males

11498

M60-64

11498

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19269

Males

11648

M60-64

11648

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17589

Males

10844

M60-64

10844

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17754

Males

10913

M60-64

10913

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19384

Males

11699

M60-64

11699

Passing Analysis

Category:
Athletes Passed
1528
Passed By
1322
Net Change
+206
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20147
5K → 10K140527-387#20147#20534
10K → 15K120261-141#20534#20675
15K → 20K158167-9#20675#20684
20K → Half3119+12#20684#20672
Half → 25K91145-54#20672#20726
25K → 30K27236+236#20726#20490
30K → 20M16615+151#20490#20339
20M → 21M9940+59#20339#20280
21M → 35K806+74#20280#20206
35K → 23M12534+91#20206#20115
23M → 24M5125+26#20115#20089
24M → 40K10010+90#20089#19999
40K → 25.2M427+35#19999#19964
25.2M → Finish5330+23#19964#19941
TOTALS15281322+206
📊

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