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BOSTON MARATHON 2024

Jaejin Lee

Bib: 1842•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 14%
Gender (Male)
#0 / 14578
Top 22%
Division (M18-39)
#0 / 4849
Top 44%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:31
Rank: #2002
Start → 5K
6:17/mi
19:31 split
10K· 6.21 mi
38:38
Rank: #1602 (+400)
5K → 10K
6:09/mi
19:07 split
15K· 9.32 mi
57:42
Rank: #1448 (+154)
10K → 15K
6:08/mi
19:04 split
20K· 12.43 mi
1:17:04
Rank: #1334 (+114)
15K → 20K
6:14/mi
19:22 split
Half· 13.11 mi
1:21:19
Rank: #1332 (+2)
20K → Half
6:14/mi
4:15 split
25K· 15.53 mi
1:36:53
Rank: #1334 (-2)
Half → 25K
6:25/mi
15:34 split
30K· 18.64 mi
2:07:24
Rank: #3962 (-2628)
25K → 30K
9:49/mi
30:31 split
20M
2:17:17
Rank: #3841 (+121)
30K → 20M
7:16/mi
9:53 split
21M
2:25:09
Rank: #3786 (+55)
20M → 21M
7:52/mi
7:52 split
35K· 21.75 mi
2:30:29
Rank: #3742 (+44)
21M → 35K
7:08/mi
5:20 split
23M
2:39:36
Rank: #3606 (+136)
35K → 23M
7:17/mi
9:07 split
24M
2:46:48
Rank: #3540 (+66)
23M → 24M
7:12/mi
7:12 split
40K· 24.85 mi
2:52:50
Rank: #3424 (+116)
24M → 40K
7:03/mi
6:02 split
25.2M
2:55:36
Rank: #3386 (+38)
40K → 25.2M
8:01/mi
2:46 split
Finish· 26.22 mi
3:03:52
Rank: #3503 (-117)
25.2M → Finish
8:07/mi
8:16 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:19
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:42:33
Pace7:49 /mi
📊Positive Split: 26.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5919:316:1719:31
6:17
-
10K
6.21 mi10:40:0638:386:1319:07
6:09
-0:08
15K
9.32 mi10:59:1057:426:1119:04
6:08
-0:01
20K
12.43 mi11:18:321:17:046:1219:22
6:14
+0:06
Half
13.11 mi11:22:471:21:196:124:15
6:14
0:00
25K
15.53 mi11:38:211:36:536:1415:34
6:25
+0:11
30K
18.64 mi12:08:522:07:246:5030:31
9:49
+3:24
20M
20.00 mi12:18:452:17:176:529:53
7:16
-2:33
21M
21.00 mi12:26:372:25:096:557:52
7:52
+0:36
35K
21.75 mi12:31:572:30:296:555:20
7:08
-0:44
23M
23.00 mi12:41:042:39:366:569:07
7:17
+0:09
24M
24.00 mi12:48:162:46:486:577:12
7:12
-0:05
40K
24.85 mi12:54:182:52:506:576:02
7:03
-0:09
25.2M
25.20 mi12:57:042:55:366:582:46
8:01
+0:58
Finish
26.22 mi13:05:203:03:527:018:16
8:07
+0:06

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

6:08 /mi

Average Pace

7:01 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:53

53% of race

Time at Steady Pace

37:34

20% of race

Time at Slower Pace

49:25

27% of race

Average Pace: 7:01 /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 mi10:20:5919:316:1719:31
6:17
#2002
10K
6.21 mi10:40:0638:386:1319:07
6:09
#1602
15K
9.32 mi10:59:1057:426:1119:04
6:08
#1448
20K
12.43 mi11:18:321:17:046:1219:22
6:14
#1334
Half
13.11 mi11:22:471:21:196:124:15
6:14
#1332
25K
15.53 mi11:38:211:36:536:1415:34
6:25
#1334
30K
18.64 mi12:08:522:07:246:5030:31
9:49
#3962
20M
20.00 mi12:18:452:17:176:529:53
7:16
#3841
21M
21.00 mi12:26:372:25:096:557:52
7:52
#3786
35K
21.75 mi12:31:572:30:296:555:20
7:08
#3742
23M
23.00 mi12:41:042:39:366:569:07
7:17
#3606
24M
24.00 mi12:48:162:46:486:577:12
7:12
#3540
40K
24.85 mi12:54:182:52:506:576:02
7:03
#3424
25.2M
25.20 mi12:57:042:55:366:582:46
8:01
#3386
Finish
26.22 mi13:05:203:03:527:018:16
8:07
#3503
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2002193819381170(Top 5%)1133(Top 8%)1133(Top 23%)
10K6.21 mi3.10 mi1602+4001549+3891549+3891343(Top 5%)1303(Top 9%)1303(Top 27%)
15K9.32 mi3.11 mi1448+1541404+1451404+1451170(Top 5%)1133(Top 8%)1133(Top 23%)
20K12.43 mi3.11 mi1334+1141290+1141290+1141153(Top 5%)1116(Top 8%)1116(Top 23%)
Half13.11 mi0.68 mi1332+21289+11289+11455(Top 6%)1410(Top 10%)1410(Top 29%)
25K15.53 mi2.42 mi1334-21290-11290-11506(Top 6%)1452(Top 10%)1452(Top 30%)
30K18.64 mi3.11 mi3962-26283709-24193709-241916705(Top 65%)10324(Top 71%)10324(Top 213%)
20M20.00 mi1.36 mi3841+1213588+1213588+1213442(Top 13%)3114(Top 21%)3114(Top 64%)
21M21.00 mi1.00 mi3786+553526+623526+623689(Top 14%)3228(Top 22%)3228(Top 67%)
35K21.75 mi0.75 mi3742+443478+483478+483515(Top 14%)3109(Top 21%)3109(Top 64%)
23M23.00 mi1.25 mi3606+1363344+1343344+1342845(Top 11%)2533(Top 17%)2533(Top 52%)
24M24.00 mi1.00 mi3540+663278+663278+662992(Top 12%)2609(Top 18%)2609(Top 54%)
40K24.85 mi0.85 mi3424+1163167+1113167+1112032(Top 8%)1820(Top 12%)1820(Top 38%)
25.2M25.20 mi0.35 mi3386+383130+373130+372798(Top 11%)2379(Top 16%)2379(Top 49%)
Finish26.22 mi1.02 mi3503-1173220-903220-909198(Top 36%)6020(Top 41%)6020(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1170

Males

1133

M18-39

1133

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1343

Males

1303

M18-39

1303

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1170

Males

1133

M18-39

1133

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1153

Males

1116

M18-39

1116

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1455

Males

1410

M18-39

1410

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1506

Males

1452

M18-39

1452

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

16705

Males

10324

M18-39

10324

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3442

Males

3114

M18-39

3114

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3689

Males

3228

M18-39

3228

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3515

Males

3109

M18-39

3109

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2845

Males

2533

M18-39

2533

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

2992

Males

2609

M18-39

2609

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2032

Males

1820

M18-39

1820

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2798

Males

2379

M18-39

2379

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9198

Males

6020

M18-39

6020

Passing Analysis

Category:
Athletes Passed
1544
Passed By
3045
Net Change
-1501
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2002
5K → 10K4088+400#2002#1602
10K → 15K1606+154#1602#1448
15K → 20K12713+114#1448#1334
20K → Half108+2#1334#1332
Half → 25K5153-2#1332#1334
25K → 30K42632-2628#1334#3962
30K → 20M17251+121#3962#3841
20M → 21M10954+55#3841#3786
21M → 35K6824+44#3786#3742
35K → 23M16125+136#3742#3606
23M → 24M8923+66#3606#3540
24M → 40K1193+116#3540#3424
40K → 25.2M446+38#3424#3386
25.2M → Finish22139-117#3386#3503
TOTALS15443045-1501
📊

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