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BOSTON MARATHON 2024

Kyo Yeol Chae

Bib: 2626•M

AL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 45%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 46%
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:13/mi
22:25
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
45:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:09:01
↑ 67↓ 78
20K· 12.43 mi
7:45/mi
1:33:07
↑ 106↓ 860.1%
Half· 13.11 mi
7:48/mi
1:38:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
1:58:45
↑ 66↓ 880.2%
30K· 18.64 mi
8:48/mi
2:26:04
↑ 181↓ 1480.2%
20M
9:02/mi
2:38:20
↑ 64↓ 500.2%
21M
9:34/mi
2:47:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
2:54:34
↑ 17↓ 861.7%
23M
9:25/mi
3:06:22
↑ 23↓ 630.6%
24M
9:30/mi
3:15:52
↓ 821.3%
40K· 24.85 mi
9:41/mi
3:24:09
↓ 200.3%
25.2M
10:52/mi
3:27:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:33/mi
3:37:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:26
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:59:12
Pace9:06 /mi
📊Positive Split: 21.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0322:257:1322:25
7:13
-
10K
6.21 mi10:47:0945:317:2023:06
7:26
+0:13
15K
9.32 mi11:10:391:09:017:2423:30
7:34
+0:08
20K
12.43 mi11:34:451:33:077:3024:06
7:45
+0:11
Half
13.11 mi11:40:041:38:267:315:19
7:48
+0:03
25K
15.53 mi12:00:231:58:457:3920:19
8:23
+0:35
30K
18.64 mi12:27:422:26:047:5027:19
8:48
+0:25
20M
20.00 mi12:39:582:38:207:5512:16
9:02
+0:14
21M
21.00 mi12:49:322:47:548:009:34
9:34
+0:32
35K
21.75 mi12:56:122:54:348:026:40
8:55
-0:39
23M
23.00 mi13:08:003:06:228:0611:48
9:25
+0:30
24M
24.00 mi13:17:303:15:528:109:30
9:30
+0:05
40K
24.85 mi13:25:473:24:098:138:17
9:41
+0:11
25.2M
25.20 mi13:29:323:27:548:153:45
10:52
+1:11
Finish
26.22 mi13:39:163:37:388:189:44
9:33
-1:19

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

7:13 /mi

Average Pace

8:18 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:45

55% of race

Time at Steady Pace

58:03

27% of race

Time at Slower Pace

40:50

19% of race

Average Pace: 8:18 /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 mi10:24:0322:257:1322:25
7:13
#8562
10K
6.21 mi10:47:0945:317:2023:06
7:26
#9102
15K
9.32 mi11:10:391:09:017:2423:30
7:34
#9399
20K
12.43 mi11:34:451:33:077:3024:06
7:45
#9582
Half
13.11 mi11:40:041:38:267:315:19
7:48
#9653
25K
15.53 mi12:00:231:58:457:3920:19
8:23
#10136
30K
18.64 mi12:27:422:26:047:5027:19
8:48
#10521
20M
20.00 mi12:39:582:38:207:5512:16
9:02
#10602
21M
21.00 mi12:49:322:47:548:009:34
9:34
#10588
35K
21.75 mi12:56:122:54:348:026:40
8:55
#10657
23M
23.00 mi13:08:003:06:228:0611:48
9:25
#10818
24M
24.00 mi13:17:303:15:528:109:30
9:30
#10995
40K
24.85 mi13:25:473:24:098:138:17
9:41
#11090
25.2M
25.20 mi13:29:323:27:548:153:45
10:52
#11155
Finish
26.22 mi13:39:163:37:388:189:44
9:33
#11398
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi85627138713810170(Top 40%)7876(Top 54%)7876(Top 392%)
10K6.21 mi3.10 mi9102-5407422-2847422-2849722(Top 38%)7718(Top 53%)7718(Top 384%)
15K9.32 mi3.11 mi9399-2977568-1467568-14610170(Top 40%)7876(Top 54%)7876(Top 392%)
20K12.43 mi3.11 mi9582-1837622-547622-5410124(Top 40%)7709(Top 53%)7709(Top 384%)
Half13.11 mi0.68 mi9653-717649-277649-2711388(Top 45%)8331(Top 57%)8331(Top 415%)
25K15.53 mi2.42 mi10136-4837830-1817830-18112419(Top 49%)8655(Top 59%)8655(Top 431%)
30K18.64 mi3.11 mi10521-3857917-877917-8712164(Top 48%)8321(Top 57%)8321(Top 414%)
20M20.00 mi1.36 mi10602-817900+177900+1712297(Top 48%)8083(Top 55%)8083(Top 402%)
21M21.00 mi1.00 mi10588+147830+707830+7011186(Top 44%)7309(Top 50%)7309(Top 364%)
35K21.75 mi0.75 mi10657-697841-117841-1112938(Top 51%)8113(Top 56%)8113(Top 404%)
23M23.00 mi1.25 mi10818-1617856-157856-1513212(Top 52%)8161(Top 56%)8161(Top 406%)
24M24.00 mi1.00 mi10995-1777888-327888-3214503(Top 57%)8758(Top 60%)8758(Top 436%)
40K24.85 mi0.85 mi11090-957885+37885+313881(Top 54%)8365(Top 57%)8365(Top 416%)
25.2M25.20 mi0.35 mi11155-657893-87893-814149(Top 55%)8462(Top 58%)8462(Top 421%)
Finish26.22 mi1.02 mi11398-2437958-657958-6516781(Top 66%)9830(Top 67%)9830(Top 489%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10170

Males

7876

M40-44

7876

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

9722

Males

7718

M40-44

7718

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10170

Males

7876

M40-44

7876

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10124

Males

7709

M40-44

7709

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

11388

Males

8331

M40-44

8331

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

12419

Males

8655

M40-44

8655

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12164

Males

8321

M40-44

8321

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12297

Males

8083

M40-44

8083

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11186

Males

7309

M40-44

7309

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

12938

Males

8113

M40-44

8113

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13212

Males

8161

M40-44

8161

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

14503

Males

8758

M40-44

8758

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

13881

Males

8365

M40-44

8365

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14149

Males

8462

M40-44

8462

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

16781

Males

9830

M40-44

9830

Passing Analysis

Category:
Athletes Passed
1272
Passed By
4105
Net Change
-2836
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8562
5K → 10K82622-540#8562#9102
10K → 15K103400-297#9102#9399
15K → 20K162345-183#9399#9582
20K → Half1485-71#9582#9653
Half → 25K105586-483#9653#10136
25K → 30K186570-385#10136#10521
30K → 20M117198-81#10521#10602
20M → 21M141127+14#10602#10588
21M → 35K59128-69#10588#10657
35K → 23M105266-161#10657#10818
23M → 24M61238-177#10818#10995
24M → 40K71166-95#10995#11090
40K → 25.2M1984-65#11090#11155
25.2M → Finish47290-243#11155#11398
TOTALS12724105-2836
📊

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