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BOSTON MARATHON 2024

Joshua Alcorn

Bib: 3130•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 8%
Gender (Male)
#0 / 14578
Top 14%
Masters (Masters Men)
#0 / 9729
Top 5%
Division (M40-44)
#0 / 2009
Top 15%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:25
Rank: #1837
Start → 5K
19:25 | 6:15/mi
10K· 6.21 mi
38:43
Rank: #1665 (+172)
5K → 10K
19:18 | 6:13/mi
15K· 9.32 mi
58:08
Rank: #1603 (+62)
10K → 15K
19:25 | 6:15/mi
20K· 12.43 mi
1:17:48
Rank: #1555 (+48)
15K → 20K
19:40 | 6:20/mi
Half· 13.11 mi
1:22:03
Rank: #1544 (+11)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:38:08
Rank: #1611 (-67)
Half → 25K
16:05 | 6:38/mi
30K· 18.64 mi
1:59:55
Rank: #1762 (-151)
25K → 30K
21:47 | 7:01/mi
20M
2:09:48
Rank: #1831 (-69)
30K → 20M
9:53 | 7:16/mi
21M
2:17:41
Rank: #1925 (-94)
20M → 21M
7:53 | 7:53/mi
35K· 21.75 mi
2:22:47
Rank: #1907 (+18)
21M → 35K
5:06 | 6:49/mi
23M
2:32:05
Rank: #1939 (-32)
35K → 23M
9:18 | 7:26/mi
24M
2:39:32
Rank: #1990 (-51)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
2:46:07
Rank: #2046 (-56)
24M → 40K
6:35 | 7:42/mi
25.2M
2:48:57
Rank: #2059 (-13)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
2:56:22
Rank: #2105 (-46)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:03
Pace6:16 /mi
2nd Half
Distance13.11 mi
Time1:34:19
Pace7:12 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2719:256:1519:25
6:15
-
10K
6.21 mi10:40:4538:436:1419:18
6:13
-0:02
15K
9.32 mi11:00:1058:086:1419:25
6:15
+0:02
20K
12.43 mi11:19:501:17:486:1619:40
6:20
+0:05
Half
13.11 mi11:24:051:22:036:164:15
6:14
-0:06
25K
15.53 mi11:40:101:38:086:1916:05
6:38
+0:24
30K
18.64 mi12:01:571:59:556:2621:47
7:01
+0:23
20M
20.00 mi12:11:502:09:486:299:53
7:16
+0:15
21M
21.00 mi12:19:432:17:416:337:53
7:53
+0:37
35K
21.75 mi12:24:492:22:476:345:06
6:49
-1:04
23M
23.00 mi12:34:072:32:056:379:18
7:26
+0:37
24M
24.00 mi12:41:342:39:326:397:27
7:27
+0:01
40K
24.85 mi12:48:092:46:076:416:35
7:42
+0:15
25.2M
25.20 mi12:50:592:48:576:422:50
8:13
+0:31
Finish
26.22 mi12:58:242:56:226:447:25
7:17
-0:56

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

6:13 /mi

Average Pace

6:44 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:08

56% of race

Time at Steady Pace

44:11

25% of race

Time at Slower Pace

34:03

19% of race

Average Pace: 6:44 /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 mi10:21:2719:256:1519:25
6:15
#1837
10K
6.21 mi10:40:4538:436:1419:18
6:13
#1665
15K
9.32 mi11:00:1058:086:1419:25
6:15
#1603
20K
12.43 mi11:19:501:17:486:1619:40
6:20
#1555
Half
13.11 mi11:24:051:22:036:164:15
6:14
#1544
25K
15.53 mi11:40:101:38:086:1916:05
6:38
#1611
30K
18.64 mi12:01:571:59:556:2621:47
7:01
#1762
20M
20.00 mi12:11:502:09:486:299:53
7:16
#1831
21M
21.00 mi12:19:432:17:416:337:53
7:53
#1925
35K
21.75 mi12:24:492:22:476:345:06
6:49
#1907
23M
23.00 mi12:34:072:32:056:379:18
7:26
#1939
24M
24.00 mi12:41:342:39:326:397:27
7:27
#1990
40K
24.85 mi12:48:092:46:076:416:35
7:42
#2046
25.2M
25.20 mi12:50:592:48:576:422:50
8:13
#2059
Finish
26.22 mi12:58:242:56:226:447:25
7:17
#2105
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1837177617761548(Top 6%)1496(Top 10%)1496(Top 74%)
10K6.21 mi3.10 mi1665+1721608+1681608+1681550(Top 6%)1503(Top 10%)1503(Top 75%)
15K9.32 mi3.11 mi1603+621553+551553+551548(Top 6%)1496(Top 10%)1496(Top 74%)
20K12.43 mi3.11 mi1555+481506+471506+471462(Top 6%)1415(Top 10%)1415(Top 70%)
Half13.11 mi0.68 mi1544+111496+101496+101441(Top 6%)1396(Top 10%)1396(Top 69%)
25K15.53 mi2.42 mi1611-671559-631559-632286(Top 9%)2181(Top 15%)2181(Top 109%)
30K18.64 mi3.11 mi1762-1511704-1451704-1452918(Top 11%)2718(Top 19%)2718(Top 135%)
20M20.00 mi1.36 mi1831-691767-631767-633423(Top 13%)3095(Top 21%)3095(Top 154%)
21M21.00 mi1.00 mi1925-941856-891856-893735(Top 15%)3247(Top 22%)3247(Top 162%)
35K21.75 mi0.75 mi1907+181834+221834+222339(Top 9%)2143(Top 15%)2143(Top 107%)
23M23.00 mi1.25 mi1939-321856-221856-223350(Top 13%)2927(Top 20%)2927(Top 146%)
24M24.00 mi1.00 mi1990-511902-461902-463926(Top 15%)3252(Top 22%)3252(Top 162%)
40K24.85 mi0.85 mi2046-561954-521954-524305(Top 17%)3378(Top 23%)3378(Top 168%)
25.2M25.20 mi0.35 mi2059-131962-81962-83375(Top 13%)2759(Top 19%)2759(Top 137%)
Finish26.22 mi1.02 mi2105-461996-341996-344365(Top 17%)3421(Top 23%)3421(Top 170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1548

Males

1496

M40-44

1496

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1550

Males

1503

M40-44

1503

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1548

Males

1496

M40-44

1496

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1462

Males

1415

M40-44

1415

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1441

Males

1396

M40-44

1396

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2286

Males

2181

M40-44

2181

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2918

Males

2718

M40-44

2718

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3423

Males

3095

M40-44

3095

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

3735

Males

3247

M40-44

3247

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2339

Males

2143

M40-44

2143

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3350

Males

2927

M40-44

2927

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3926

Males

3252

M40-44

3252

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4305

Males

3378

M40-44

3378

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3375

Males

2759

M40-44

2759

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4365

Males

3421

M40-44

3421

Passing Analysis

Category:
Athletes Passed
708
Passed By
976
Net Change
-268
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1837
5K → 10K20129+172#1837#1665
10K → 15K9230+62#1665#1603
15K → 20K9042+48#1603#1555
20K → Half2110+11#1555#1544
Half → 25K39106-67#1544#1611
25K → 30K53204-151#1611#1762
30K → 20M2796-69#1762#1831
20M → 21M31125-94#1831#1925
21M → 35K3315+18#1925#1907
35K → 23M3971-32#1907#1939
23M → 24M2980-51#1939#1990
24M → 40K1773-56#1990#2046
40K → 25.2M1326-13#2046#2059
25.2M → Finish2369-46#2059#2105
TOTALS708976-268
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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