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BOSTON MARATHON 2024

John Byerly

Bib: 7263•M

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:32
Rank: #11354
Start → 5K
23:32 | 7:34/mi
10K· 6.21 mi
47:45
Rank: #11947 (-593)
5K → 10K
24:13 | 7:48/mi
15K· 9.32 mi
1:11:51
Rank: #11803 (+144)
10K → 15K
24:06 | 7:45/mi
20K· 12.43 mi
1:36:22
Rank: #11556 (+247)
15K → 20K
24:31 | 7:53/mi
Half· 13.11 mi
1:41:39
Rank: #11505 (+51)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:00:51
Rank: #11140 (+365)
Half → 25K
19:12 | 7:55/mi
30K· 18.64 mi
2:28:58
Rank: #11602 (-462)
25K → 30K
28:07 | 9:03/mi
20M
2:42:25
Rank: #12039 (-437)
30K → 20M
13:27 | 9:54/mi
21M
2:53:46
Rank: #12449 (-410)
20M → 21M
11:21 | 11:21/mi
35K· 21.75 mi
3:00:50
Rank: #12547 (-98)
21M → 35K
7:04 | 9:27/mi
23M
3:13:20
Rank: #12753 (-206)
35K → 23M
12:30 | 9:59/mi
24M
3:23:28
Rank: #13001 (-248)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:32:07
Rank: #13109 (-108)
24M → 40K
8:39 | 10:07/mi
25.2M
3:36:32
Rank: #13284 (-175)
40K → 25.2M
4:25 | 12:48/mi
Finish· 26.22 mi
3:45:48
Rank: #13319 (-35)
25.2M → Finish
9:16 | 9:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:39
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time2:04:09
Pace9:28 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2823:327:3423:32
7:34
-
10K
6.21 mi11:19:4147:457:4124:13
7:48
+0:14
15K
9.32 mi11:43:471:11:517:4324:06
7:45
-0:03
20K
12.43 mi12:08:181:36:227:4524:31
7:53
+0:08
Half
13.11 mi12:13:351:41:397:455:17
7:45
-0:08
25K
15.53 mi12:32:472:00:517:4719:12
7:55
+0:10
30K
18.64 mi13:00:542:28:587:5928:07
9:03
+1:08
20M
20.00 mi13:14:212:42:258:0713:27
9:54
+0:51
21M
21.00 mi13:25:422:53:468:1611:21
11:21
+1:27
35K
21.75 mi13:32:463:00:508:197:04
9:27
-1:54
23M
23.00 mi13:45:163:13:208:2412:30
9:59
+0:32
24M
24.00 mi13:55:243:23:288:2910:08
10:08
+0:09
40K
24.85 mi14:04:033:32:078:328:39
10:07
-0:01
25.2M
25.20 mi14:08:283:36:328:364:25
12:48
+2:41
Finish
26.22 mi14:17:443:45:488:379:16
9:06
-3:42

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

8:37 /mi

Slowest Pace

12:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:51

54% of race

Time at Steady Pace

44:27

20% of race

Time at Slower Pace

1:00:30

27% of race

Average Pace: 8:37 /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 mi10:55:2823:327:3423:32
7:34
#11354
10K
6.21 mi11:19:4147:457:4124:13
7:48
#11947
15K
9.32 mi11:43:471:11:517:4324:06
7:45
#11803
20K
12.43 mi12:08:181:36:227:4524:31
7:53
#11556
Half
13.11 mi12:13:351:41:397:455:17
7:45
#11505
25K
15.53 mi12:32:472:00:517:4719:12
7:55
#11140
30K
18.64 mi13:00:542:28:587:5928:07
9:03
#11602
20M
20.00 mi13:14:212:42:258:0713:27
9:54
#12039
21M
21.00 mi13:25:422:53:468:1611:21
11:21
#12449
35K
21.75 mi13:32:463:00:508:197:04
9:27
#12547
23M
23.00 mi13:45:163:13:208:2412:30
9:59
#12753
24M
24.00 mi13:55:243:23:288:2910:08
10:08
#13001
40K
24.85 mi14:04:033:32:078:328:39
10:07
#13109
25.2M
25.20 mi14:08:283:36:328:364:25
12:48
#13284
Finish
26.22 mi14:17:443:45:488:379:16
9:06
#13319
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi113548570857011600(Top 45%)8558(Top 59%)8558(Top 426%)
10K6.21 mi3.10 mi11947-5938776-2068776-20612591(Top 49%)9030(Top 62%)9030(Top 449%)
15K9.32 mi3.11 mi11803+1448681+958681+9511600(Top 45%)8558(Top 59%)8558(Top 426%)
20K12.43 mi3.11 mi11556+2478560+1218560+12111073(Top 43%)8203(Top 56%)8203(Top 408%)
Half13.11 mi0.68 mi11505+518528+328528+3210901(Top 43%)8142(Top 56%)8142(Top 405%)
25K15.53 mi2.42 mi11140+3658317+2118317+2119659(Top 38%)7326(Top 50%)7326(Top 365%)
30K18.64 mi3.11 mi11602-4628434-1178434-11713468(Top 53%)8893(Top 61%)8893(Top 443%)
20M20.00 mi1.36 mi12039-4378586-1528586-15216101(Top 63%)9803(Top 67%)9803(Top 488%)
21M21.00 mi1.00 mi12449-4108706-1208706-12017252(Top 68%)10231(Top 70%)10231(Top 509%)
35K21.75 mi0.75 mi12547-988716-108716-1015270(Top 60%)9259(Top 64%)9259(Top 461%)
23M23.00 mi1.25 mi12753-2068740-248740-2415392(Top 60%)9244(Top 63%)9244(Top 460%)
24M24.00 mi1.00 mi13001-2488795-558795-5516737(Top 66%)9886(Top 68%)9886(Top 492%)
40K24.85 mi0.85 mi13109-1088799-48799-415404(Top 60%)9152(Top 63%)9152(Top 456%)
25.2M25.20 mi0.35 mi13284-1758865-668865-6619225(Top 75%)11053(Top 76%)11053(Top 550%)
Finish26.22 mi1.02 mi13319-358844+218844+2114661(Top 57%)8824(Top 61%)8824(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

11600

Males

8558

M40-44

8558

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

12591

Males

9030

M40-44

9030

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

11600

Males

8558

M40-44

8558

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11073

Males

8203

M40-44

8203

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

10901

Males

8142

M40-44

8142

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

9659

Males

7326

M40-44

7326

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

13468

Males

8893

M40-44

8893

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16101

Males

9803

M40-44

9803

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

17252

Males

10231

M40-44

10231

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

15270

Males

9259

M40-44

9259

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15392

Males

9244

M40-44

9244

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

16737

Males

9886

M40-44

9886

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15404

Males

9152

M40-44

9152

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19225

Males

11053

M40-44

11053

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

14661

Males

8824

M40-44

8824

Passing Analysis

Category:
Athletes Passed
1804
Passed By
3769
Net Change
-1965
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11354
5K → 10K106699-593#11354#11947
10K → 15K301157+144#11947#11803
15K → 20K356109+247#11803#11556
20K → Half6716+51#11556#11505
Half → 25K40237+365#11505#11140
25K → 30K170632-462#11140#11602
30K → 20M47484-437#11602#12039
20M → 21M47457-410#12039#12449
21M → 35K39137-98#12449#12547
35K → 23M78284-206#12547#12753
23M → 24M50298-248#12753#13001
24M → 40K60168-108#13001#13109
40K → 25.2M13188-175#13109#13284
25.2M → Finish68103-35#13284#13319
TOTALS18043769-1965
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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