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BOSTON MARATHON 2024

Sung Hwan Lee

Bib: 11687•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 38%
Gender (Male)
#0 / 14578
Top 49%
Masters (Masters Men)
#0 / 9729
Top 39%
Division (M45-49)
#0 / 2218
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
7:45/mi
24:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
47:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:11:07
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:34:41
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:39:51
↑ 19↓ 370.5%
25K· 15.53 mi
7:43/mi
1:58:33
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:23:23
↑ 181↓ 1480.2%
20M
8:50/mi
2:35:23
↑ 64↓ 500.2%
21M
9:04/mi
2:44:27
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
2:51:07
↑ 17↓ 861.7%
23M
9:19/mi
3:02:47
↑ 23↓ 630.6%
24M
8:18/mi
3:11:05
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:18:18
↓ 200.3%
25.2M
9:02/mi
3:21:25
↑ 13↓ 160.2%
Finish· 26.22 mi
8:38/mi
3:30:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:51
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:50:22
Pace8:25 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4524:047:4524:04
7:45
-
10K
6.21 mi11:15:1647:357:3923:31
7:34
-0:11
15K
9.32 mi11:38:481:11:077:3823:32
7:34
0:00
20K
12.43 mi12:02:221:34:417:3723:34
7:35
+0:01
Half
13.11 mi12:07:321:39:517:375:10
7:34
-0:01
25K
15.53 mi12:26:141:58:337:3818:42
7:43
+0:09
30K
18.64 mi12:51:042:23:237:4224:50
8:00
+0:17
20M
20.00 mi13:03:042:35:237:4612:00
8:50
+0:50
21M
21.00 mi13:12:082:44:277:509:04
9:04
+0:14
35K
21.75 mi13:18:482:51:077:526:40
8:55
-0:09
23M
23.00 mi13:30:283:02:477:5711:40
9:19
+0:24
24M
24.00 mi13:38:463:11:057:588:18
8:18
-1:01
40K
24.85 mi13:45:593:18:187:597:13
8:26
+0:08
25.2M
25.20 mi13:49:063:21:258:003:07
9:02
+0:36
Finish
26.22 mi13:57:543:30:138:018:48
8:38
-0:24

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

7:34 /mi

Average Pace

8:01 /mi

Slowest Pace

9:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:33

56% of race

Time at Steady Pace

40:21

19% of race

Time at Slower Pace

51:19

24% of race

Average Pace: 8:01 /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 mi10:51:4524:047:4524:04
7:45
#12657
10K
6.21 mi11:15:1647:357:3923:31
7:34
#11705
15K
9.32 mi11:38:481:11:077:3823:32
7:34
#11200
20K
12.43 mi12:02:221:34:417:3723:34
7:35
#10524
Half
13.11 mi12:07:321:39:517:375:10
7:34
#10464
25K
15.53 mi12:26:141:58:337:3818:42
7:43
#10022
30K
18.64 mi12:51:042:23:237:4224:50
8:00
#9483
20M
20.00 mi13:03:042:35:237:4612:00
8:50
#9560
21M
21.00 mi13:12:082:44:277:509:04
9:04
#9451
35K
21.75 mi13:18:482:51:077:526:40
8:55
#9555
23M
23.00 mi13:30:283:02:477:5711:40
9:19
#9759
24M
24.00 mi13:38:463:11:057:588:18
8:18
#9646
40K
24.85 mi13:45:593:18:187:597:13
8:26
#9562
25.2M
25.20 mi13:49:063:21:258:003:07
9:02
#9485
Finish
26.22 mi13:57:543:30:138:018:48
8:38
#9619
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi126579112911210227(Top 40%)7910(Top 54%)7910(Top 357%)
10K6.21 mi3.10 mi11705+9528677+4358677+43510829(Top 42%)8256(Top 57%)8256(Top 372%)
15K9.32 mi3.11 mi11200+5058430+2478430+24710227(Top 40%)7910(Top 54%)7910(Top 357%)
20K12.43 mi3.11 mi10524+6768084+3468084+3468972(Top 35%)7154(Top 49%)7154(Top 323%)
Half13.11 mi0.68 mi10464+608043+418043+419623(Top 38%)7486(Top 51%)7486(Top 338%)
25K15.53 mi2.42 mi10022+4427768+2757768+2758363(Top 33%)6639(Top 46%)6639(Top 299%)
30K18.64 mi3.11 mi9483+5397411+3577411+3577826(Top 31%)6105(Top 42%)6105(Top 275%)
20M20.00 mi1.36 mi9560-777384+277384+2711209(Top 44%)7588(Top 52%)7588(Top 342%)
21M21.00 mi1.00 mi9451+1097269+1157269+1158885(Top 35%)6235(Top 43%)6235(Top 281%)
35K21.75 mi0.75 mi9555-1047292-237292-2312830(Top 50%)8074(Top 55%)8074(Top 364%)
23M23.00 mi1.25 mi9759-2047326-347326-3412657(Top 50%)7884(Top 54%)7884(Top 355%)
24M24.00 mi1.00 mi9646+1137222+1047222+1048296(Top 32%)5651(Top 39%)5651(Top 255%)
40K24.85 mi0.85 mi9562+847134+887134+888040(Top 31%)5415(Top 37%)5415(Top 244%)
25.2M25.20 mi0.35 mi9485+777081+537081+536696(Top 26%)4667(Top 32%)4667(Top 210%)
Finish26.22 mi1.02 mi9619-1347122-417122-4112246(Top 48%)7629(Top 52%)7629(Top 344%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10227

Males

7910

M45-49

7910

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

10829

Males

8256

M45-49

8256

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10227

Males

7910

M45-49

7910

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

8972

Males

7154

M45-49

7154

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

9623

Males

7486

M45-49

7486

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8363

Males

6639

M45-49

6639

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

7826

Males

6105

M45-49

6105

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11209

Males

7588

M45-49

7588

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

8885

Males

6235

M45-49

6235

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

12830

Males

8074

M45-49

8074

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

12657

Males

7884

M45-49

7884

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8296

Males

5651

M45-49

5651

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8040

Males

5415

M45-49

5415

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6696

Males

4667

M45-49

4667

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12246

Males

7629

M45-49

7629

Passing Analysis

Category:
Athletes Passed
4177*
Passed By
1138
Net Change
+3038
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12657
5K → 10K99442+952#12657#11705
10K → 15K53732+505#11705#11200
15K → 20K68610+676#11200#10524
20K → Half677+60#10524#10464
Half → 25K46018+442#10464#10022
25K → 30K580*41+539#10022#9483
30K → 20M119196-77#9483#9560
20M → 21M18475+109#9560#9451
21M → 35K56160-104#9451#9555
35K → 23M92295-204#9555#9759
23M → 24M148*35+113#9759#9646
24M → 40K12844+84#9646#9562
40K → 25.2M825+77#9562#9485
25.2M → Finish44178-134#9485#9619
TOTALS4177*1138+3038

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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