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BOSTON MARATHON 2024

Brian Chadwick

Bib: 5878•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 13%
Gender (Male)
#0 / 14578
Top 21%
Masters (Masters Men)
#0 / 9729
Top 10%
Division (M50-54)
#0 / 1935
Top 6%
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
6:37/mi
20:33
↑ 97↓ 3451.5%
10K· 6.21 mi
6:35/mi
40:59
↑ 79↓ 1380.4%
15K· 9.32 mi
6:38/mi
1:01:37
↑ 67↓ 78
20K· 12.43 mi
6:39/mi
1:22:16
↑ 106↓ 860.1%
Half· 13.11 mi
6:36/mi
1:26:46
↑ 19↓ 370.5%
25K· 15.53 mi
6:46/mi
1:43:10
↑ 66↓ 880.2%
30K· 18.64 mi
7:02/mi
2:05:00
↑ 181↓ 1480.2%
20M
7:16/mi
2:14:52
↑ 64↓ 500.2%
21M
7:40/mi
2:22:32
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:27:54
↑ 17↓ 861.7%
23M
7:31/mi
2:37:19
↑ 23↓ 630.6%
24M
7:38/mi
2:44:57
↓ 821.3%
40K· 24.85 mi
8:01/mi
2:51:48
↓ 200.3%
25.2M
9:08/mi
2:54:57
↑ 13↓ 160.2%
Finish· 26.22 mi
7:56/mi
3:03:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:46
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:36:16
Pace7:21 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5220:336:3720:33
6:37
-
10K
6.21 mi10:45:1840:596:3620:26
6:35
-0:02
15K
9.32 mi11:05:561:01:376:3720:38
6:38
+0:03
20K
12.43 mi11:26:351:22:166:3720:39
6:39
+0:01
Half
13.11 mi11:31:051:26:466:374:30
6:36
-0:03
25K
15.53 mi11:47:291:43:106:3816:24
6:46
+0:10
30K
18.64 mi12:09:192:05:006:4221:50
7:02
+0:16
20M
20.00 mi12:19:112:14:526:459:52
7:16
+0:14
21M
21.00 mi12:26:512:22:326:477:40
7:40
+0:24
35K
21.75 mi12:32:132:27:546:485:22
7:10
-0:30
23M
23.00 mi12:41:382:37:196:509:25
7:31
+0:21
24M
24.00 mi12:49:162:44:576:527:38
7:38
+0:07
40K
24.85 mi12:56:072:51:486:556:51
8:01
+0:23
25.2M
25.20 mi12:59:162:54:576:573:09
9:08
+1:07
Finish
26.22 mi13:07:213:03:026:598:05
7:56
-1:12

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

6:35 /mi

Average Pace

6:59 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:10

56% of race

Time at Steady Pace

37:04

20% of race

Time at Slower Pace

42:48

23% of race

Average Pace: 6:59 /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 mi10:24:5220:336:3720:33
6:37
#4124
10K
6.21 mi10:45:1840:596:3620:26
6:35
#3723
15K
9.32 mi11:05:561:01:376:3720:38
6:38
#3648
20K
12.43 mi11:26:351:22:166:3720:39
6:39
#3400
Half
13.11 mi11:31:051:26:466:374:30
6:36
#3386
25K
15.53 mi11:47:291:43:106:3816:24
6:46
#3250
30K
18.64 mi12:09:192:05:006:4221:50
7:02
#3117
20M
20.00 mi12:19:112:14:526:459:52
7:16
#3084
21M
21.00 mi12:26:512:22:326:477:40
7:40
#3045
35K
21.75 mi12:32:132:27:546:485:22
7:10
#3058
23M
23.00 mi12:41:382:37:196:509:25
7:31
#3073
24M
24.00 mi12:49:162:44:576:527:38
7:38
#3159
40K
24.85 mi12:56:072:51:486:556:51
8:01
#3233
25.2M
25.20 mi12:59:162:54:576:573:09
9:08
#3276
Finish
26.22 mi13:07:213:03:026:598:05
7:56
#3362
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4124389538953527(Top 14%)3343(Top 23%)3343(Top 173%)
10K6.21 mi3.10 mi3723+4013526+3693526+3693454(Top 14%)3279(Top 22%)3279(Top 169%)
15K9.32 mi3.11 mi3648+753462+643462+643527(Top 14%)3343(Top 23%)3343(Top 173%)
20K12.43 mi3.11 mi3400+2483233+2293233+2292891(Top 11%)2758(Top 19%)2758(Top 143%)
Half13.11 mi0.68 mi3386+143221+123221+123154(Top 12%)2998(Top 21%)2998(Top 155%)
25K15.53 mi2.42 mi3250+1363088+1333088+1332985(Top 12%)2816(Top 19%)2816(Top 146%)
30K18.64 mi3.11 mi3117+1332955+1332955+1333000(Top 12%)2792(Top 19%)2792(Top 144%)
20M20.00 mi1.36 mi3084+332921+342921+343381(Top 13%)3061(Top 21%)3061(Top 158%)
21M21.00 mi1.00 mi3045+392875+462875+463038(Top 12%)2731(Top 19%)2731(Top 141%)
35K21.75 mi0.75 mi3058-132882-72882-73679(Top 14%)3224(Top 22%)3224(Top 167%)
23M23.00 mi1.25 mi3073-152883-12883-13693(Top 14%)3166(Top 22%)3166(Top 164%)
24M24.00 mi1.00 mi3159-862951-682951-684668(Top 18%)3703(Top 25%)3703(Top 191%)
40K24.85 mi0.85 mi3233-743005-543005-545824(Top 23%)4218(Top 29%)4218(Top 218%)
25.2M25.20 mi0.35 mi3276-433037-323037-327074(Top 28%)4816(Top 33%)4816(Top 249%)
Finish26.22 mi1.02 mi3362-863097-603097-608098(Top 32%)5436(Top 37%)5436(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3527

Males

3343

M50-54

3343

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

3454

Males

3279

M50-54

3279

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3527

Males

3343

M50-54

3343

15K→20K

9.3 - 12.4 mi

Top 11%
×5story building
+106ft-86ft

Overall

2891

Males

2758

M50-54

2758

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3154

Males

2998

M50-54

2998

Half→25K

13.1 - 15.5 mi

Top 12%
×4story building
+66ft-88ft

Overall

2985

Males

2816

M50-54

2816

25K→30K

15.5 - 18.6 mi

Top 12%
×9story building
+181ft-148ft

Overall

3000

Males

2792

M50-54

2792

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3381

Males

3061

M50-54

3061

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3038

Males

2731

M50-54

2731

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

3679

Males

3224

M50-54

3224

35K→23M

21.8 - 23.0 mi

Top 14%
×5story building
+23ft-63ft

Overall

3693

Males

3166

M50-54

3166

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

4668

Males

3703

M50-54

3703

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

5824

Males

4218

M50-54

4218

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7074

Males

4816

M50-54

4816

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8098

Males

5436

M50-54

5436

Passing Analysis

Category:
Athletes Passed
1712
Passed By
950
Net Change
+762
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4124
5K → 10K42423+401#4124#3723
10K → 15K15984+75#3723#3648
15K → 20K26719+248#3648#3400
20K → Half3117+14#3400#3386
Half → 25K18347+136#3386#3250
25K → 30K237104+133#3250#3117
30K → 20M9562+33#3117#3084
20M → 21M9556+39#3084#3045
21M → 35K3952-13#3045#3058
35K → 23M7489-15#3058#3073
23M → 24M32118-86#3073#3159
24M → 40K29103-74#3159#3233
40K → 25.2M851-43#3233#3276
25.2M → Finish39125-86#3276#3362
TOTALS1712950+762
📊

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