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BOSTON MARATHON 2024

James O'Sullivan

CO

Bib: 1800 M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 2%
Gender (Male)
#0 / 14578
Top 3%
Division (M18-39)
#0 / 4849
Top 9%
Race Day Weather
55°/45°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:02/mi
18:45
↑ 97↓ 345
10K· 6.21 mi
6:04/mi
37:36
↑ 79↓ 138
15K· 9.32 mi
6:05/mi
56:30
↑ 67↓ 78
20K· 12.43 mi
6:07/mi
1:15:29
↑ 106↓ 86
Half· 13.11 mi
6:01/mi
1:19:35
↑ 19↓ 37
25K· 15.53 mi
6:03/mi
1:34:15
↑ 66↓ 88
30K· 18.64 mi
6:11/mi
1:53:27
↑ 181↓ 148
20M
6:15/mi
2:01:56
↑ 64↓ 50
21M
6:34/mi
2:08:30
↑ 106↓ 24
35K· 21.75 mi
6:05/mi
2:13:03
↑ 17↓ 86
23M
6:15/mi
2:20:53
↑ 23↓ 63
24M
6:12/mi
2:27:05
↓ 82
40K· 24.85 mi
6:18/mi
2:32:28
↓ 20
25.2M
7:03/mi
2:34:54
↑ 13↓ 16
Finish· 26.22 mi
6:13/mi
2:41:14
↑ 22↓ 21
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:19:356:04 /mi⚡ faster
2nd Half
1:21:396:14 /mi+2.6%
Positive split — 2.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
18:456:023.11 mi18:45
6:02
-
10K
37:366:033.10 mi18:51
6:04
+0:02
15K
56:306:043.11 mi18:54
6:05
+0:01
20K
1:15:296:043.11 mi18:59
6:07
+0:02
Half(13.11 mi)
1:19:356:040.68 mi4:06
6:01
-0:06
25K
1:34:156:042.42 mi14:40
6:03
+0:02
30K
1:53:276:053.11 mi19:12
6:11
+0:08
20M
2:01:566:061.36 mi8:29
6:15
+0:04
21M
2:08:306:071.00 mi6:34
6:34
+0:19
35K
2:13:036:070.75 mi4:33
6:05
-0:29
23M
2:20:536:081.25 mi7:50
6:15
+0:10
24M
2:27:056:081.00 mi6:12
6:12
-0:03
40K
2:32:286:080.85 mi5:23
6:18
+0:06
25.2M
2:34:546:090.35 mi2:26
7:03
+0:45
Finish(26.22 mi)
2:41:146:091.02 mi6:20
6:13
-0:50
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:01 /mi

Average Pace

6:09 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:38:48

98% of race

Time at Steady Pace

2:26

2% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:09 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi1023986986995959959
10K3.10 mi1022+1984+2984+2106310261026
15K3.11 mi997+25961+23961+23995959959
20K3.11 mi931+66896+65896+65817786786
Half(13.11 mi)0.68 mi927+4892+4892+4784755755
25K2.42 mi839+88805+87805+87548519519
30K3.11 mi730+109700+105700+105452424424
20M1.36 mi683+47653+47653+47443414414
21M1.00 mi638+45609+44609+44407381381
35K0.75 mi611+27582+27582+27461430430
23M1.25 mi566+45537+45537+45371345345
24M1.00 mi540+26511+26511+26457426426
40K0.85 mi519+21490+21490+21427398398
25.2M0.35 mi519490490628576576
Finish(26.22 mi)1.02 mi515+4486+4486+4741690690

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

995

Males

959

M18-39

959

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

1063

Males

1026

M18-39

1026

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

995

Males

959

M18-39

959

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

817

Males

786

M18-39

786

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

784

Males

755

M18-39

755

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

548

Males

519

M18-39

519

25K→30K

15.5 - 18.6 mi

Top 2%
×9story building
+181ft-148ft

Overall

452

Males

424

M18-39

424

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

443

Males

414

M18-39

414

20M→21M

20.0 - 21.0 mi

Top 2%
×8story building
+106ft-24ft

Overall

407

Males

381

M18-39

381

21M→35K

21.0 - 21.8 mi

Top 2%
×7story building
+17ft-86ft

Overall

461

Males

430

M18-39

430

35K→23M

21.8 - 23.0 mi

Top 1%
×5story building
+23ft-63ft

Overall

371

Males

345

M18-39

345

23M→24M

23.0 - 24.0 mi

Top 2%
×6story building
+12ft-82ft

Overall

457

Males

426

M18-39

426

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

427

Males

398

M18-39

398

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

628

Males

576

M18-39

576

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

741

Males

690

M18-39

690

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#1023
5K → 10K
5455+1
#1023 → #1022
10K → 15K
2853+25
#1022 → #997
15K → 20K
1682+66
#997 → #931
20K → Half
37+4
#931 → #927
Half → 25K
391+88
#927 → #839
25K → 30K
6115+109
#839 → #730
30K → 20M
249+47
#730 → #683
20M → 21M
348+45
#683 → #638
21M → 35K
128+27
#638 → #611
35K → 23M
348+45
#611 → #566
23M → 24M
531+26
#566 → #540
24M → 40K
425+21
#540 → #519
40K → 25.2M
550
#519 → #519
25.2M → Finish
1216+4
#519 → #515
TOTALS
145653+508
#1023 → #515

Passing Visualized

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