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BOSTON MARATHON 2024

Seiseung Lee

Bib: 4087•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 13%
Gender (Male)
#0 / 14578
Top 21%
Division (M18-39)
#0 / 4849
Top 42%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #5297
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
42:06
Rank: #5205 (+92)
5K → 10K
21:06 | 6:47/mi
15K· 9.32 mi
1:03:19
Rank: #5111 (+94)
10K → 15K
21:13 | 6:50/mi
20K· 12.43 mi
1:24:38
Rank: #4832 (+279)
15K → 20K
21:19 | 6:52/mi
Half· 13.11 mi
1:29:15
Rank: #4782 (+50)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:45:54
Rank: #4482 (+300)
Half → 25K
16:39 | 6:52/mi
30K· 18.64 mi
2:07:33
Rank: #4017 (+465)
25K → 30K
21:39 | 6:58/mi
20M
2:17:04
Rank: #3771 (+246)
30K → 20M
9:31 | 7:00/mi
21M
2:24:29
Rank: #3580 (+191)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:29:39
Rank: #3527 (+53)
21M → 35K
5:10 | 6:54/mi
23M
2:38:30
Rank: #3348 (+179)
35K → 23M
8:51 | 7:04/mi
24M
2:45:28
Rank: #3254 (+94)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
2:51:31
Rank: #3176 (+78)
24M → 40K
6:03 | 7:05/mi
25.2M
2:54:28
Rank: #3185 (-9)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:02:34
Rank: #3280 (-95)
25.2M → Finish
8:06 | 7:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:15
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:33:19
Pace7:07 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1921:006:4621:00
6:46
-
10K
6.21 mi10:45:2542:066:4721:06
6:47
+0:01
15K
9.32 mi11:06:381:03:196:4821:13
6:50
+0:03
20K
12.43 mi11:27:571:24:386:4921:19
6:52
+0:02
Half
13.11 mi11:32:341:29:156:484:37
6:46
-0:06
25K
15.53 mi11:49:131:45:546:4916:39
6:52
+0:06
30K
18.64 mi12:10:522:07:336:5121:39
6:58
+0:06
20M
20.00 mi12:20:232:17:046:519:31
7:00
+0:02
21M
21.00 mi12:27:482:24:296:537:25
7:25
+0:25
35K
21.75 mi12:32:582:29:396:535:10
6:54
-0:31
23M
23.00 mi12:41:492:38:306:538:51
7:04
+0:10
24M
24.00 mi12:48:472:45:286:546:58
6:58
-0:06
40K
24.85 mi12:54:502:51:316:546:03
7:05
+0:07
25.2M
25.20 mi12:57:472:54:286:552:57
8:33
+1:28
Finish
26.22 mi13:05:533:02:346:588:06
7:57
-0:36

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

6:46 /mi

Average Pace

6:58 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:44:06

90% of race

Time at Slower Pace

18:28

10% of race

Average Pace: 6:58 /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 mi10:24:1921:006:4621:00
6:46
#5297
10K
6.21 mi10:45:2542:066:4721:06
6:47
#5205
15K
9.32 mi11:06:381:03:196:4821:13
6:50
#5111
20K
12.43 mi11:27:571:24:386:4921:19
6:52
#4832
Half
13.11 mi11:32:341:29:156:484:37
6:46
#4782
25K
15.53 mi11:49:131:45:546:4916:39
6:52
#4482
30K
18.64 mi12:10:522:07:336:5121:39
6:58
#4017
20M
20.00 mi12:20:232:17:046:519:31
7:00
#3771
21M
21.00 mi12:27:482:24:296:537:25
7:25
#3580
35K
21.75 mi12:32:582:29:396:535:10
6:54
#3527
23M
23.00 mi12:41:492:38:306:538:51
7:04
#3348
24M
24.00 mi12:48:472:45:286:546:58
6:58
#3254
40K
24.85 mi12:54:502:51:316:546:03
7:05
#3176
25.2M
25.20 mi12:57:472:54:286:552:57
8:33
#3185
Finish
26.22 mi13:05:533:02:346:588:06
7:57
#3280
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5297487748774985(Top 20%)4589(Top 31%)4589(Top 95%)
10K6.21 mi3.10 mi5205+924808+694808+695096(Top 20%)4709(Top 32%)4709(Top 97%)
15K9.32 mi3.11 mi5111+944727+814727+814985(Top 20%)4589(Top 31%)4589(Top 95%)
20K12.43 mi3.11 mi4832+2794480+2474480+2474325(Top 17%)4012(Top 28%)4012(Top 83%)
Half13.11 mi0.68 mi4782+504437+434437+434220(Top 17%)3924(Top 27%)3924(Top 81%)
25K15.53 mi2.42 mi4482+3004169+2684169+2683592(Top 14%)3347(Top 23%)3347(Top 69%)
30K18.64 mi3.11 mi4017+4653757+4123757+4122717(Top 11%)2542(Top 17%)2542(Top 52%)
20M20.00 mi1.36 mi3771+2463528+2293528+2292384(Top 9%)2225(Top 15%)2225(Top 46%)
21M21.00 mi1.00 mi3580+1913344+1843344+1842258(Top 9%)2082(Top 14%)2082(Top 43%)
35K21.75 mi0.75 mi3527+533293+513293+512703(Top 11%)2455(Top 17%)2455(Top 51%)
23M23.00 mi1.25 mi3348+1793121+1723121+1722182(Top 9%)1981(Top 14%)1981(Top 41%)
24M24.00 mi1.00 mi3254+943032+893032+892234(Top 9%)2009(Top 14%)2009(Top 41%)
40K24.85 mi0.85 mi3176+782957+752957+752105(Top 8%)1877(Top 13%)1877(Top 39%)
25.2M25.20 mi0.35 mi3185-92960-32960-34612(Top 18%)3507(Top 24%)3507(Top 72%)
Finish26.22 mi1.02 mi3280-953027-673027-678186(Top 32%)5481(Top 38%)5481(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

4985

Males

4589

M18-39

4589

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5096

Males

4709

M18-39

4709

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

4985

Males

4589

M18-39

4589

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4325

Males

4012

M18-39

4012

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4220

Males

3924

M18-39

3924

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3592

Males

3347

M18-39

3347

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2717

Males

2542

M18-39

2542

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2384

Males

2225

M18-39

2225

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2258

Males

2082

M18-39

2082

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2703

Males

2455

M18-39

2455

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2182

Males

1981

M18-39

1981

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2234

Males

2009

M18-39

2009

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2105

Males

1877

M18-39

1877

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4612

Males

3507

M18-39

3507

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8186

Males

5481

M18-39

5481

Passing Analysis

Category:
Athletes Passed
2578
Passed By
561
Net Change
+2017
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5297
5K → 10K237145+92#5297#5205
10K → 15K196102+94#5205#5111
15K → 20K31233+279#5111#4832
20K → Half588+50#4832#4782
Half → 25K32424+300#4782#4482
25K → 30K4749+465#4482#4017
30K → 20M25812+246#4017#3771
20M → 21M1987+191#3771#3580
21M → 35K7118+53#3580#3527
35K → 23M18910+179#3527#3348
23M → 24M10814+94#3348#3254
24M → 40K9315+78#3254#3176
40K → 25.2M1827-9#3176#3185
25.2M → Finish42137-95#3185#3280
TOTALS2578561+2017
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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