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BOSTON MARATHON 2024

Christopher Imai

Bib: 16569•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 41%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 43%
Division (M50-54)
#0 / 1935
Top 45%
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
7:54/mi
24:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
49:05
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:13:44
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:38:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:43:45
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:03:07
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:28:42
↑ 181↓ 1480.2%
20M
8:22/mi
2:40:04
↑ 64↓ 500.2%
21M
8:42/mi
2:48:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:23/mi
2:55:02
↑ 17↓ 861.7%
23M
8:35/mi
3:05:47
↑ 23↓ 630.6%
24M
9:03/mi
3:14:50
↓ 821.3%
40K· 24.85 mi
9:33/mi
3:23:00
↓ 200.3%
25.2M
9:43/mi
3:26:21
↑ 13↓ 160.2%
Finish· 26.22 mi
7:22/mi
3:33:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:45
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:50:06
Pace8:24 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3624:327:5424:32
7:54
-
10K
6.21 mi11:39:0949:057:5424:33
7:54
0:00
15K
9.32 mi12:03:481:13:447:5524:39
7:56
+0:02
20K
12.43 mi12:28:271:38:237:5524:39
7:56
0:00
Half
13.11 mi12:33:491:43:457:555:22
7:52
-0:04
25K
15.53 mi12:53:112:03:077:5619:22
7:59
+0:07
30K
18.64 mi13:18:462:28:427:5925:35
8:14
+0:15
20M
20.00 mi13:30:082:40:048:0011:22
8:22
+0:08
21M
21.00 mi13:38:502:48:468:028:42
8:42
+0:20
35K
21.75 mi13:45:062:55:028:036:16
8:23
-0:19
23M
23.00 mi13:55:513:05:478:0510:45
8:35
+0:12
24M
24.00 mi14:04:543:14:508:079:03
9:03
+0:28
40K
24.85 mi14:13:043:23:008:108:10
9:33
+0:30
25.2M
25.20 mi14:16:253:26:218:113:21
9:43
+0:10
Finish
26.22 mi14:23:553:33:518:107:30
7:22
-2:21

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

7:22 /mi

Average Pace

8:10 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:57

29% of race

Time at Steady Pace

1:51:53

52% of race

Time at Slower Pace

40:01

19% of race

Average Pace: 8:09 /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 mi11:14:3624:327:5424:32
7:54
#13834
10K
6.21 mi11:39:0949:057:5424:33
7:54
#13634
15K
9.32 mi12:03:481:13:447:5524:39
7:56
#13376
20K
12.43 mi12:28:271:38:237:5524:39
7:56
#12756
Half
13.11 mi12:33:491:43:457:555:22
7:52
#12705
25K
15.53 mi12:53:112:03:077:5619:22
7:59
#12173
30K
18.64 mi13:18:462:28:427:5925:35
8:14
#11492
20M
20.00 mi13:30:082:40:048:0011:22
8:22
#11207
21M
21.00 mi13:38:502:48:468:028:42
8:42
#10837
35K
21.75 mi13:45:062:55:028:036:16
8:23
#10784
23M
23.00 mi13:55:513:05:478:0510:45
8:35
#10631
24M
24.00 mi14:04:543:14:508:079:03
9:03
#10697
40K
24.85 mi14:13:043:23:008:108:10
9:33
#10799
25.2M
25.20 mi14:16:253:26:218:113:21
9:43
#10759
Finish
26.22 mi14:23:553:33:518:107:30
7:22
#10485
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi138349594959412930(Top 51%)9132(Top 63%)9132(Top 472%)
10K6.21 mi3.10 mi13634+2009491+1039491+10313439(Top 53%)9387(Top 64%)9387(Top 485%)
15K9.32 mi3.11 mi13376+2589378+1139378+11312930(Top 51%)9132(Top 63%)9132(Top 472%)
20K12.43 mi3.11 mi12756+6209097+2819097+28111343(Top 44%)8336(Top 57%)8336(Top 431%)
Half13.11 mi0.68 mi12705+519061+369061+3611753(Top 46%)8515(Top 58%)8515(Top 440%)
25K15.53 mi2.42 mi12173+5328784+2778784+27710110(Top 40%)7549(Top 52%)7549(Top 390%)
30K18.64 mi3.11 mi11492+6818376+4088376+4089202(Top 36%)6867(Top 47%)6867(Top 355%)
20M20.00 mi1.36 mi11207+2858193+1838193+1838724(Top 34%)6367(Top 44%)6367(Top 329%)
21M21.00 mi1.00 mi10837+3707951+2427951+2427139(Top 28%)5355(Top 37%)5355(Top 277%)
35K21.75 mi0.75 mi10784+537898+537898+539986(Top 39%)6742(Top 46%)6742(Top 348%)
23M23.00 mi1.25 mi10631+1537763+1357763+1358930(Top 35%)6070(Top 42%)6070(Top 314%)
24M24.00 mi1.00 mi10697-667749+147749+1412390(Top 48%)7746(Top 53%)7746(Top 400%)
40K24.85 mi0.85 mi10799-1027749774913302(Top 52%)8076(Top 55%)8076(Top 417%)
25.2M25.20 mi0.35 mi10759+407703+467703+469648(Top 38%)6168(Top 42%)6168(Top 319%)
Finish26.22 mi1.02 mi10485+2747533+1707533+1704829(Top 19%)3711(Top 25%)3711(Top 192%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

12930

Males

9132

M50-54

9132

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

13439

Males

9387

M50-54

9387

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

12930

Males

9132

M50-54

9132

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11343

Males

8336

M50-54

8336

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

11753

Males

8515

M50-54

8515

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10110

Males

7549

M50-54

7549

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9202

Males

6867

M50-54

6867

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

8724

Males

6367

M50-54

6367

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7139

Males

5355

M50-54

5355

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

9986

Males

6742

M50-54

6742

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

8930

Males

6070

M50-54

6070

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12390

Males

7746

M50-54

7746

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13302

Males

8076

M50-54

8076

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

9648

Males

6168

M50-54

6168

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

4829

Males

3711

M50-54

3711

Passing Analysis

Category:
Athletes Passed
4229
Passed By
880
Net Change
+3349
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13834
5K → 10K410210+200#13834#13634
10K → 15K358100+258#13634#13376
15K → 20K64323+620#13376#12756
20K → Half6615+51#12756#12705
Half → 25K54816+532#12705#12173
25K → 30K71332+681#12173#11492
30K → 20M31227+285#11492#11207
20M → 21M38010+370#11207#10837
21M → 35K9340+53#10837#10784
35K → 23M21865+153#10784#10631
23M → 24M89155-66#10631#10697
24M → 40K67169-102#10697#10799
40K → 25.2M5515+40#10799#10759
25.2M → Finish2773+274#10759#10485
TOTALS4229880+3349
📊

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