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BOSTON MARATHON 2023

Cheonho Yoon

Bib: 8415•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
Masters (Masters Men)
#0 / 9891
Top 19%
Division (M40-44)
#0 / 2241
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #4251
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
42:41
Rank: #5582 (-1331)
5K → 10K
21:41 | 6:59/mi
15K· 9.32 mi
1:03:47
Rank: #5407 (+175)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:25:08
Rank: #5330 (+77)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:29:38
Rank: #5236 (+94)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:46:31
Rank: #5250 (-14)
Half → 25K
16:53 | 6:58/mi
30K· 18.64 mi
2:09:07
Rank: #5377 (-127)
25K → 30K
22:36 | 7:16/mi
20M
2:19:07
Rank: #5393 (-16)
30K → 20M
10:00 | 7:22/mi
21M
2:27:08
Rank: #5456 (-63)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:32:21
Rank: #5415 (+41)
21M → 35K
5:13 | 6:58/mi
23M
2:41:48
Rank: #5428 (-13)
35K → 23M
9:27 | 7:33/mi
24M
2:49:06
Rank: #5425 (+3)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:55:39
Rank: #5457 (-32)
24M → 40K
6:33 | 7:40/mi
25.2M
2:58:32
Rank: #5463 (-6)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:06:15
Rank: #5530 (-67)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:38
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:36:37
Pace7:22 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1521:006:4621:00
6:46
-
10K
6.21 mi11:07:5642:416:5221:41
6:59
+0:13
15K
9.32 mi11:29:021:03:476:5121:06
6:47
-0:12
20K
12.43 mi11:50:231:25:086:5121:21
6:52
+0:05
Half
13.11 mi11:54:531:29:386:504:30
6:36
-0:16
25K
15.53 mi12:11:461:46:316:5116:53
6:58
+0:22
30K
18.64 mi12:34:222:09:076:5622:36
7:16
+0:18
20M
20.00 mi12:44:222:19:076:5710:00
7:22
+0:06
21M
21.00 mi12:52:232:27:087:008:01
8:01
+0:39
35K
21.75 mi12:57:362:32:217:005:13
6:58
-1:03
23M
23.00 mi13:07:032:41:487:029:27
7:33
+0:35
24M
24.00 mi13:14:212:49:067:037:18
7:18
-0:15
40K
24.85 mi13:20:542:55:397:046:33
7:40
+0:22
25.2M
25.20 mi13:23:472:58:327:052:53
8:22
+0:42
Finish
26.22 mi13:31:303:06:157:077:43
7:34
-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

6:36 /mi

Average Pace

7:07 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:44

60% of race

Time at Steady Pace

39:54

21% of race

Time at Slower Pace

34:37

19% of race

Average Pace: 7:06 /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 mi10:46:1521:006:4621:00
6:46
#4251
10K
6.21 mi11:07:5642:416:5221:41
6:59
#5582
15K
9.32 mi11:29:021:03:476:5121:06
6:47
#5407
20K
12.43 mi11:50:231:25:086:5121:21
6:52
#5330
Half
13.11 mi11:54:531:29:386:504:30
6:36
#5236
25K
15.53 mi12:11:461:46:316:5116:53
6:58
#5250
30K
18.64 mi12:34:222:09:076:5622:36
7:16
#5377
20M
20.00 mi12:44:222:19:076:5710:00
7:22
#5393
21M
21.00 mi12:52:232:27:087:008:01
8:01
#5456
35K
21.75 mi12:57:362:32:217:005:13
6:58
#5415
23M
23.00 mi13:07:032:41:487:029:27
7:33
#5428
24M
24.00 mi13:14:212:49:067:037:18
7:18
#5425
40K
24.85 mi13:20:542:55:397:046:33
7:40
#5457
25.2M
25.20 mi13:23:472:58:327:052:53
8:22
#5463
Finish
26.22 mi13:31:303:06:157:077:43
7:34
#5530
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4251398039805033(Top 19%)4673(Top 31%)4673(Top 209%)
10K6.21 mi3.10 mi5582-13315143-11635143-11636668(Top 25%)5985(Top 39%)5985(Top 267%)
15K9.32 mi3.11 mi5407+1754998+1454998+1455033(Top 19%)4673(Top 31%)4673(Top 209%)
20K12.43 mi3.11 mi5330+774932+664932+665133(Top 19%)4748(Top 31%)4748(Top 212%)
Half13.11 mi0.68 mi5236+944853+794853+793458(Top 13%)3289(Top 22%)3289(Top 147%)
25K15.53 mi2.42 mi5250-144866-134866-135369(Top 20%)4949(Top 33%)4949(Top 221%)
30K18.64 mi3.11 mi5377-1274960-944960-945888(Top 22%)5293(Top 35%)5293(Top 236%)
20M20.00 mi1.36 mi5393-164972-124972-125950(Top 22%)5250(Top 35%)5250(Top 234%)
21M21.00 mi1.00 mi5456-635014-425014-427408(Top 28%)6112(Top 40%)6112(Top 273%)
35K21.75 mi0.75 mi5415+414973+414973+415185(Top 19%)4636(Top 31%)4636(Top 207%)
23M23.00 mi1.25 mi5428-134975-24975-26689(Top 25%)5620(Top 37%)5620(Top 251%)
24M24.00 mi1.00 mi5425+34966+94966+96344(Top 24%)5307(Top 35%)5307(Top 237%)
40K24.85 mi0.85 mi5457-324978-124978-127651(Top 29%)6015(Top 40%)6015(Top 268%)
25.2M25.20 mi0.35 mi5463-64980-24980-28567(Top 32%)6468(Top 43%)6468(Top 289%)
Finish26.22 mi1.02 mi5530-675024-445024-449041(Top 34%)6758(Top 45%)6758(Top 302%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5033

Males

4673

M40-44

4673

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6668

Males

5985

M40-44

5985

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5033

Males

4673

M40-44

4673

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5133

Males

4748

M40-44

4748

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3458

Males

3289

M40-44

3289

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5369

Males

4949

M40-44

4949

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5888

Males

5293

M40-44

5293

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5950

Males

5250

M40-44

5250

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7408

Males

6112

M40-44

6112

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5185

Males

4636

M40-44

4636

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6689

Males

5620

M40-44

5620

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6344

Males

5307

M40-44

5307

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7651

Males

6015

M40-44

6015

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8567

Males

6468

M40-44

6468

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9041

Males

6758

M40-44

6758

Passing Analysis

Category:
Athletes Passed
1014
Passed By
2293
Net Change
-1279
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4251
5K → 10K151346-1331#4251#5582
10K → 15K21944+175#5582#5407
15K → 20K14669+77#5407#5330
20K → Half951+94#5330#5236
Half → 25K88102-14#5236#5250
25K → 30K98225-127#5250#5377
30K → 20M5470-16#5377#5393
20M → 21M3699-63#5393#5456
21M → 35K5716+41#5456#5415
35K → 23M6578-13#5415#5428
23M → 24M5350+3#5428#5425
24M → 40K3567-32#5425#5457
40K → 25.2M2228-6#5457#5463
25.2M → Finish3198-67#5463#5530
TOTALS10142293-1279
📊

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