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BOSTON MARATHON 2024

Joon Ki Lee

Bib: 23073•M

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M65-69)
#0 / 617
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:50
Rank: #21063
Start → 5K
9:17/mi
28:50 split
10K· 6.21 mi
58:33
Rank: #21333 (-270)
5K → 10K
9:34/mi
29:43 split
15K· 9.32 mi
1:27:56
Rank: #21027 (+306)
10K → 15K
9:27/mi
29:23 split
20K· 12.43 mi
2:00:00
Rank: #21095 (-68)
15K → 20K
10:19/mi
32:04 split
Half· 13.11 mi
2:06:25
Rank: #21030 (+65)
20K → Half
9:24/mi
6:25 split
25K· 15.53 mi
2:32:27
Rank: #20985 (+45)
Half → 25K
10:44/mi
26:02 split
30K· 18.64 mi
3:08:35
Rank: #21054 (-69)
25K → 30K
11:38/mi
36:08 split
20M
3:23:52
Rank: #20966 (+88)
30K → 20M
11:15/mi
15:17 split
21M
3:36:38
Rank: #20942 (+24)
20M → 21M
12:46/mi
12:46 split
35K· 21.75 mi
3:44:59
Rank: #20896 (+46)
21M → 35K
11:10/mi
8:21 split
23M
3:59:27
Rank: #20819 (+77)
35K → 23M
11:33/mi
14:28 split
24M
4:11:01
Rank: #20806 (+13)
23M → 24M
11:34/mi
11:34 split
40K· 24.85 mi
4:24:36
Rank: #21084 (-278)
24M → 40K
15:53/mi
13:35 split
25.2M
4:29:31
Rank: #21103 (-19)
40K → 25.2M
14:15/mi
4:55 split
Finish· 26.22 mi
4:39:57
Rank: #21032 (+71)
25.2M → Finish
10:14/mi
10:26 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:25
Pace9:39 /mi
2nd Half
Distance13.11 mi
Time2:33:32
Pace11:43 /mi
📊Positive Split: 21.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:1528:509:1728:50
9:17
-
10K
6.21 mi11:58:5858:339:2529:43
9:34
+0:17
15K
9.32 mi12:28:211:27:569:2629:23
9:27
-0:07
20K
12.43 mi13:00:252:00:009:3932:04
10:19
+0:52
Half
13.11 mi13:06:502:06:259:396:25
9:24
-0:55
25K
15.53 mi13:32:522:32:279:4926:02
10:44
+1:20
30K
18.64 mi14:09:003:08:3510:0736:08
11:38
+0:54
20M
20.00 mi14:24:173:23:5210:1215:17
11:15
-0:23
21M
21.00 mi14:37:033:36:3810:1912:46
12:46
+1:31
35K
21.75 mi14:45:243:44:5910:218:21
11:10
-1:36
23M
23.00 mi14:59:523:59:2710:2514:28
11:33
+0:23
24M
24.00 mi15:11:264:11:0110:2811:34
11:34
+0:01
40K
24.85 mi15:25:014:24:3610:3913:35
15:53
+4:19
25.2M
25.20 mi15:29:564:29:3110:424:55
14:15
-1:38
Finish
26.22 mi15:40:224:39:5710:4110:26
10:14
-4:01

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

9:17 /mi

Average Pace

10:41 /mi

Slowest Pace

15:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:47

37% of race

Time at Steady Pace

2:23:54

51% of race

Time at Slower Pace

31:16

11% of race

Average Pace: 10:41 /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 mi11:29:1528:509:1728:50
9:17
#21063
10K
6.21 mi11:58:5858:339:2529:43
9:34
#21333
15K
9.32 mi12:28:211:27:569:2629:23
9:27
#21027
20K
12.43 mi13:00:252:00:009:3932:04
10:19
#21095
Half
13.11 mi13:06:502:06:259:396:25
9:24
#21030
25K
15.53 mi13:32:522:32:279:4926:02
10:44
#20985
30K
18.64 mi14:09:003:08:3510:0736:08
11:38
#21054
20M
20.00 mi14:24:173:23:5210:1215:17
11:15
#20966
21M
21.00 mi14:37:033:36:3810:1912:46
12:46
#20942
35K
21.75 mi14:45:243:44:5910:218:21
11:10
#20896
23M
23.00 mi14:59:523:59:2710:2514:28
11:33
#20819
24M
24.00 mi15:11:264:11:0110:2811:34
11:34
#20806
40K
24.85 mi15:25:014:24:3610:3913:35
15:53
#21084
25.2M
25.20 mi15:29:564:29:3110:424:55
14:15
#21103
Finish
26.22 mi15:40:224:39:5710:4110:26
10:14
#21032
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi21063125871258720533(Top 80%)12415(Top 85%)12415(Top 2012%)
10K6.21 mi3.10 mi21333-27012738-15112738-15121549(Top 84%)12828(Top 88%)12828(Top 2079%)
15K9.32 mi3.11 mi21027+30612600+13812600+13820533(Top 80%)12415(Top 85%)12415(Top 2012%)
20K12.43 mi3.11 mi21095-6812648-4812648-4821279(Top 83%)12720(Top 87%)12720(Top 2062%)
Half13.11 mi0.68 mi21030+6512615+3312615+3319748(Top 77%)11962(Top 82%)11962(Top 1939%)
25K15.53 mi2.42 mi20985+4512570+4512570+4520960(Top 82%)12477(Top 86%)12477(Top 2022%)
30K18.64 mi3.11 mi21054-6912544+2612544+2621277(Top 83%)12454(Top 85%)12454(Top 2018%)
20M20.00 mi1.36 mi20966+8812476+6812476+6819844(Top 78%)11665(Top 80%)11665(Top 1891%)
21M21.00 mi1.00 mi20942+2412444+3212444+3220343(Top 80%)11801(Top 81%)11801(Top 1913%)
35K21.75 mi0.75 mi20896+4612406+3812406+3820137(Top 79%)11685(Top 80%)11685(Top 1894%)
23M23.00 mi1.25 mi20819+7712333+7312333+7319769(Top 77%)11452(Top 79%)11452(Top 1856%)
24M24.00 mi1.00 mi20806+1312314+1912314+1920566(Top 80%)11809(Top 81%)11809(Top 1914%)
40K24.85 mi0.85 mi21084-27812431-11712431-11724936(Top 98%)14145(Top 97%)14145(Top 2293%)
25.2M25.20 mi0.35 mi21103-1912434-312434-321976(Top 86%)12468(Top 86%)12468(Top 2021%)
Finish26.22 mi1.02 mi21032+7112387+4712387+4719197(Top 75%)11084(Top 76%)11084(Top 1796%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

20533

Males

12415

M65-69

12415

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

21549

Males

12828

M65-69

12828

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

20533

Males

12415

M65-69

12415

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

21279

Males

12720

M65-69

12720

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

19748

Males

11962

M65-69

11962

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

20960

Males

12477

M65-69

12477

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

21277

Males

12454

M65-69

12454

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

19844

Males

11665

M65-69

11665

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

20343

Males

11801

M65-69

11801

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

20137

Males

11685

M65-69

11685

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

19769

Males

11452

M65-69

11452

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

20566

Males

11809

M65-69

11809

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

24936

Males

14145

M65-69

14145

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

21976

Males

12468

M65-69

12468

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

19197

Males

11084

M65-69

11084

Passing Analysis

Category:
Athletes Passed
1621
Passed By
1590
Net Change
+31
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21063
5K → 10K147417-270#21063#21333
10K → 15K35044+306#21333#21027
15K → 20K172240-68#21027#21095
20K → Half705+65#21095#21030
Half → 25K173128+45#21030#20985
25K → 30K142211-69#20985#21054
30K → 20M11931+88#21054#20966
20M → 21M8662+24#20966#20942
21M → 35K7529+46#20942#20896
35K → 23M11639+77#20896#20819
23M → 24M6148+13#20819#20806
24M → 40K7285-278#20806#21084
40K → 25.2M1635-19#21084#21103
25.2M → Finish8716+71#21103#21032
TOTALS16211590+31
📊

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