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BOSTON MARATHON 2024

Jae Jin Lee

Bib: 11936•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
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
9:13/mi
28:38
↑ 97↓ 3451.5%
10K· 6.21 mi
9:42/mi
58:47
↑ 79↓ 1380.4%
15K· 9.32 mi
9:29/mi
1:28:15
↑ 67↓ 78
20K· 12.43 mi
10:04/mi
1:59:33
↑ 106↓ 860.1%
Half· 13.11 mi
10:35/mi
2:06:46
↑ 19↓ 370.5%
25K· 15.53 mi
10:13/mi
2:31:32
↑ 66↓ 880.2%
30K· 18.64 mi
10:31/mi
3:04:13
↑ 181↓ 1480.2%
20M
10:23/mi
3:18:19
↑ 64↓ 500.2%
21M
11:42/mi
3:30:01
↑ 106↓ 241.6%
35K· 21.75 mi
10:43/mi
3:38:02
↑ 17↓ 861.7%
23M
10:31/mi
3:51:12
↑ 23↓ 630.6%
24M
10:32/mi
4:01:44
↓ 821.3%
40K· 24.85 mi
10:39/mi
4:10:50
↓ 200.3%
25.2M
12:05/mi
4:15:00
↑ 13↓ 160.2%
Finish· 26.22 mi
10:08/mi
4:25:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:46
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:18:34
Pace10:34 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4528:389:1328:38
9:13
-
10K
6.21 mi11:25:5458:479:2830:09
9:42
+0:29
15K
9.32 mi11:55:221:28:159:2829:28
9:29
-0:13
20K
12.43 mi12:26:401:59:339:3731:18
10:04
+0:35
Half
13.11 mi12:33:532:06:469:407:13
10:35
+0:31
25K
15.53 mi12:58:392:31:329:4524:46
10:13
-0:22
30K
18.64 mi13:31:203:04:139:5332:41
10:31
+0:18
20M
20.00 mi13:45:263:18:199:5514:06
10:23
-0:08
21M
21.00 mi13:57:083:30:0110:0011:42
11:42
+1:19
35K
21.75 mi14:05:093:38:0210:028:01
10:43
-0:59
23M
23.00 mi14:18:193:51:1210:0313:10
10:31
-0:12
24M
24.00 mi14:28:514:01:4410:0410:32
10:32
+0:01
40K
24.85 mi14:37:574:10:5010:069:06
10:39
+0:07
25.2M
25.20 mi14:42:074:15:0010:074:10
12:05
+1:26
Finish
26.22 mi14:52:274:25:2010:0810:20
10:08
-1:57

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

9:13 /mi

Average Pace

10:08 /mi

Slowest Pace

12:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:53

49% of race

Time at Steady Pace

1:59:35

45% of race

Time at Slower Pace

15:52

6% of race

Average Pace: 10:07 /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 mi10:55:4528:389:1328:38
9:13
#20863
10K
6.21 mi11:25:5458:479:2830:09
9:42
#21436
15K
9.32 mi11:55:221:28:159:2829:28
9:29
#21138
20K
12.43 mi12:26:401:59:339:3731:18
10:04
#20996
Half
13.11 mi12:33:532:06:469:407:13
10:35
#21112
25K
15.53 mi12:58:392:31:329:4524:46
10:13
#20842
30K
18.64 mi13:31:203:04:139:5332:41
10:31
#20469
20M
20.00 mi13:45:263:18:199:5514:06
10:23
#20265
21M
21.00 mi13:57:083:30:0110:0011:42
11:42
#20118
35K
21.75 mi14:05:093:38:0210:028:01
10:43
#20071
23M
23.00 mi14:18:193:51:1210:0313:10
10:31
#19877
24M
24.00 mi14:28:514:01:4410:0410:32
10:32
#19776
40K
24.85 mi14:37:574:10:5010:069:06
10:39
#19667
25.2M
25.20 mi14:42:074:15:0010:074:10
12:05
#19629
Finish
26.22 mi14:52:274:25:2010:0810:20
10:08
#19584
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20863124871248720609(Top 81%)12455(Top 85%)12455(Top 562%)
10K6.21 mi3.10 mi21436-57312778-29112778-29121855(Top 86%)12979(Top 89%)12979(Top 585%)
15K9.32 mi3.11 mi21138+29812654+12412654+12420609(Top 81%)12455(Top 85%)12455(Top 562%)
20K12.43 mi3.11 mi20996+14212605+4912605+4920739(Top 81%)12487(Top 86%)12487(Top 563%)
Half13.11 mi0.68 mi21112-11612652-4712652-4722776(Top 89%)13359(Top 92%)13359(Top 602%)
25K15.53 mi2.42 mi20842+27012505+14712505+14719693(Top 77%)11896(Top 82%)11896(Top 536%)
30K18.64 mi3.11 mi20469+37312294+21112294+21118827(Top 74%)11304(Top 78%)11304(Top 510%)
20M20.00 mi1.36 mi20265+20412156+13812156+13817632(Top 69%)10571(Top 73%)10571(Top 477%)
21M21.00 mi1.00 mi20118+14712066+9012066+9018122(Top 71%)10702(Top 73%)10702(Top 483%)
35K21.75 mi0.75 mi20071+4712026+4012026+4019126(Top 75%)11185(Top 77%)11185(Top 504%)
23M23.00 mi1.25 mi19877+19411912+11411912+11417092(Top 67%)10105(Top 69%)10105(Top 456%)
24M24.00 mi1.00 mi19776+10111851+6111851+6117944(Top 70%)10473(Top 72%)10473(Top 472%)
40K24.85 mi0.85 mi19667+10911777+7411777+7417116(Top 67%)9999(Top 69%)9999(Top 451%)
25.2M25.20 mi0.35 mi19629+3811748+2911748+2917532(Top 69%)10192(Top 70%)10192(Top 460%)
Finish26.22 mi1.02 mi19584+4511712+3611712+3618874(Top 74%)10924(Top 75%)10924(Top 493%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

20609

Males

12455

M45-49

12455

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

21855

Males

12979

M45-49

12979

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

20609

Males

12455

M45-49

12455

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

20739

Males

12487

M45-49

12487

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

22776

Males

13359

M45-49

13359

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

19693

Males

11896

M45-49

11896

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

18827

Males

11304

M45-49

11304

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

17632

Males

10571

M45-49

10571

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18122

Males

10702

M45-49

10702

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19126

Males

11185

M45-49

11185

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17092

Males

10105

M45-49

10105

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

17944

Males

10473

M45-49

10473

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17116

Males

9999

M45-49

9999

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

17532

Males

10192

M45-49

10192

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

18874

Males

10924

M45-49

10924

Passing Analysis

Category:
Athletes Passed
2404
Passed By
1125
Net Change
+1279
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20863
5K → 10K75648-573#20863#21436
10K → 15K34446+298#21436#21138
15K → 20K255113+142#21138#20996
20K → Half9125-116#20996#21112
Half → 25K29424+270#21112#20842
25K → 30K40633+373#20842#20469
30K → 20M2139+204#20469#20265
20M → 21M16215+147#20265#20118
21M → 35K6922+47#20118#20071
35K → 23M1984+194#20071#19877
23M → 24M11615+101#19877#19776
24M → 40K12819+109#19776#19667
40K → 25.2M479+38#19667#19629
25.2M → Finish8843+45#19629#19584
TOTALS24041125+1279
📊

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