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BOSTON MARATHON 2024

Joshua Defronzo

Bib: 29720•M

RI

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:45
Rank: #18360
Start → 5K
26:45 | 8:37/mi
10K· 6.21 mi
55:01
Rank: #19286 (-926)
5K → 10K
28:16 | 9:06/mi
15K· 9.32 mi
1:21:23
Rank: #18336 (+950)
10K → 15K
26:22 | 8:29/mi
20K· 12.43 mi
1:48:01
Rank: #17457 (+879)
15K → 20K
26:38 | 8:34/mi
Half· 13.11 mi
1:53:38
Rank: #17256 (+201)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:14:07
Rank: #16479 (+777)
Half → 25K
20:29 | 8:27/mi
30K· 18.64 mi
2:42:04
Rank: #15855 (+624)
25K → 30K
27:57 | 9:00/mi
20M
2:54:11
Rank: #15532 (+323)
30K → 20M
12:07 | 8:55/mi
21M
3:03:38
Rank: #15238 (+294)
20M → 21M
9:27 | 9:27/mi
35K· 21.75 mi
3:09:51
Rank: #15056 (+182)
21M → 35K
6:13 | 8:19/mi
23M
3:21:03
Rank: #14788 (+268)
35K → 23M
11:12 | 8:57/mi
24M
3:31:34
Rank: #14981 (-193)
23M → 24M
10:31 | 10:31/mi
40K· 24.85 mi
3:40:43
Rank: #15121 (-140)
24M → 40K
9:09 | 10:42/mi
25.2M
3:44:39
Rank: #15118 (+3)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
3:53:46
Rank: #15051 (+67)
25.2M → Finish
9:07 | 8:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:38
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:00:08
Pace9:10 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0526:458:3726:45
8:37
-
10K
6.21 mi12:18:2155:018:5128:16
9:06
+0:29
15K
9.32 mi12:44:431:21:238:4426:22
8:29
-0:37
20K
12.43 mi13:11:211:48:018:4226:38
8:34
+0:05
Half
13.11 mi13:16:581:53:388:405:37
8:14
-0:20
25K
15.53 mi13:37:272:14:078:3820:29
8:27
+0:13
30K
18.64 mi14:05:242:42:048:4227:57
9:00
+0:33
20M
20.00 mi14:17:312:54:118:4312:07
8:55
-0:05
21M
21.00 mi14:26:583:03:388:459:27
9:27
+0:32
35K
21.75 mi14:33:113:09:518:446:13
8:19
-1:08
23M
23.00 mi14:44:233:21:038:4411:12
8:57
+0:38
24M
24.00 mi14:54:543:31:348:4910:31
10:31
+1:34
40K
24.85 mi15:04:033:40:438:539:09
10:42
+0:11
25.2M
25.20 mi15:07:593:44:398:553:56
11:24
+0:42
Finish
26.22 mi15:17:063:53:468:559:07
8:57
-2:27

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

8:14 /mi

Average Pace

8:55 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:41

25% of race

Time at Steady Pace

2:22:02

61% of race

Time at Slower Pace

33:03

14% of race

Average Pace: 8:55 /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 mi11:50:0526:458:3726:45
8:37
#18360
10K
6.21 mi12:18:2155:018:5128:16
9:06
#19286
15K
9.32 mi12:44:431:21:238:4426:22
8:29
#18336
20K
12.43 mi13:11:211:48:018:4226:38
8:34
#17457
Half
13.11 mi13:16:581:53:388:405:37
8:14
#17256
25K
15.53 mi13:37:272:14:078:3820:29
8:27
#16479
30K
18.64 mi14:05:242:42:048:4227:57
9:00
#15855
20M
20.00 mi14:17:312:54:118:4312:07
8:55
#15532
21M
21.00 mi14:26:583:03:388:459:27
9:27
#15238
35K
21.75 mi14:33:113:09:518:446:13
8:19
#15056
23M
23.00 mi14:44:233:21:038:4411:12
8:57
#14788
24M
24.00 mi14:54:543:31:348:4910:31
10:31
#14981
40K
24.85 mi15:04:033:40:438:539:09
10:42
#15121
25.2M
25.20 mi15:07:593:44:398:553:56
11:24
#15118
Finish
26.22 mi15:17:063:53:468:559:07
8:57
#15051
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi18360113521135216317(Top 64%)10521(Top 72%)10521(Top 217%)
10K6.21 mi3.10 mi19286-92611763-41111763-41120134(Top 79%)12194(Top 84%)12194(Top 251%)
15K9.32 mi3.11 mi18336+95011366+39711366+39716317(Top 64%)10521(Top 72%)10521(Top 217%)
20K12.43 mi3.11 mi17457+87910984+38210984+38215186(Top 59%)10030(Top 69%)10030(Top 207%)
Half13.11 mi0.68 mi17256+20110882+10210882+10214181(Top 56%)9582(Top 66%)9582(Top 198%)
25K15.53 mi2.42 mi16479+77710553+32910553+32912788(Top 50%)8832(Top 61%)8832(Top 182%)
30K18.64 mi3.11 mi15855+62410236+31710236+31713221(Top 52%)8795(Top 60%)8795(Top 181%)
20M20.00 mi1.36 mi15532+32310061+17510061+17511694(Top 46%)7815(Top 54%)7815(Top 161%)
21M21.00 mi1.00 mi15238+2949887+1749887+17410624(Top 42%)7072(Top 49%)7072(Top 146%)
35K21.75 mi0.75 mi15056+1829799+889799+889634(Top 38%)6592(Top 45%)6592(Top 136%)
23M23.00 mi1.25 mi14788+2689617+1829617+18210888(Top 43%)7027(Top 48%)7027(Top 145%)
24M24.00 mi1.00 mi14981-1939669-529669-5217866(Top 70%)10430(Top 72%)10430(Top 215%)
40K24.85 mi0.85 mi15121-1409692-239692-2317276(Top 68%)10072(Top 69%)10072(Top 208%)
25.2M25.20 mi0.35 mi15118+39673+199673+1915752(Top 62%)9304(Top 64%)9304(Top 192%)
Finish26.22 mi1.02 mi15051+679621+529621+5213924(Top 54%)8462(Top 58%)8462(Top 175%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

16317

Males

10521

M18-39

10521

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20134

Males

12194

M18-39

12194

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

16317

Males

10521

M18-39

10521

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15186

Males

10030

M18-39

10030

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14181

Males

9582

M18-39

9582

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

12788

Males

8832

M18-39

8832

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13221

Males

8795

M18-39

8795

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

11694

Males

7815

M18-39

7815

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

10624

Males

7072

M18-39

7072

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

9634

Males

6592

M18-39

6592

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

10888

Males

7027

M18-39

7027

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

17866

Males

10430

M18-39

10430

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

17276

Males

10072

M18-39

10072

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

15752

Males

9304

M18-39

9304

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

13924

Males

8462

M18-39

8462

Passing Analysis

Category:
Athletes Passed
4882
Passed By
1573
Net Change
+3309
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18360
5K → 10K60986-926#18360#19286
10K → 15K9544+950#19286#18336
15K → 20K8823+879#18336#17457
20K → Half2021+201#17457#17256
Half → 25K7770+777#17256#16479
25K → 30K64420+624#16479#15855
30K → 20M3318+323#15855#15532
20M → 21M30410+294#15532#15238
21M → 35K1820+182#15238#15056
35K → 23M29022+268#15056#14788
23M → 24M51244-193#14788#14981
24M → 40K57197-140#14981#15121
40K → 25.2M4239+3#15121#15118
25.2M → Finish10639+67#15118#15051
TOTALS48821573+3309
📊

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