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BOSTON MARATHON 2023

David Defelice

Bib: 3082•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:13
Rank: #2302
Start → 5K
20:13 | 6:30/mi
10K· 6.21 mi
39:46
Rank: #1973 (+329)
5K → 10K
19:33 | 6:18/mi
15K· 9.32 mi
59:20
Rank: #1850 (+123)
10K → 15K
19:34 | 6:18/mi
20K· 12.43 mi
1:19:00
Rank: #1746 (+104)
15K → 20K
19:40 | 6:20/mi
Half· 13.11 mi
1:23:16
Rank: #1735 (+11)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:38:28
Rank: #1657 (+78)
Half → 25K
15:12 | 6:16/mi
30K· 18.64 mi
1:58:03
Rank: #1468 (+189)
25K → 30K
19:35 | 6:18/mi
20M
2:06:19
Rank: #1347 (+121)
30K → 20M
8:16 | 6:05/mi
21M
2:12:40
Rank: #1255 (+92)
20M → 21M
6:21 | 6:21/mi
35K· 21.75 mi
2:17:04
Rank: #1193 (+62)
21M → 35K
4:24 | 5:53/mi
23M
2:24:42
Rank: #1115 (+78)
35K → 23M
7:38 | 6:06/mi
24M
2:30:41
Rank: #1082 (+33)
23M → 24M
5:59 | 5:59/mi
40K· 24.85 mi
2:35:51
Rank: #1026 (+56)
24M → 40K
5:10 | 6:03/mi
25.2M
2:38:02
Rank: #998 (+28)
40K → 25.2M
2:11 | 6:20/mi
Finish· 26.22 mi
2:43:43
Rank: #931 (+67)
25.2M → Finish
5:41 | 5:35/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:23:16
Pace6:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:20:27
Pace6:08 /mi
📊Negative Split: 3.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3220:136:3020:13
6:30
-
10K
6.21 mi10:41:0539:466:2419:33
6:18
-0:12
15K
9.32 mi11:00:3959:206:2219:34
6:18
0:00
20K
12.43 mi11:20:191:19:006:2119:40
6:20
+0:02
Half
13.11 mi11:24:351:23:166:214:16
6:15
-0:05
25K
15.53 mi11:39:471:38:286:2015:12
6:16
+0:01
30K
18.64 mi11:59:221:58:036:2019:35
6:18
+0:02
20M
20.00 mi12:07:382:06:196:198:16
6:05
-0:13
21M
21.00 mi12:13:592:12:406:196:21
6:21
+0:16
35K
21.75 mi12:18:232:17:046:184:24
5:53
-0:28
23M
23.00 mi12:26:012:24:426:177:38
6:06
+0:13
24M
24.00 mi12:32:002:30:416:175:59
5:59
-0:07
40K
24.85 mi12:37:102:35:516:165:10
6:03
+0:04
25.2M
25.20 mi12:39:212:38:026:162:11
6:20
+0:17
Finish
26.22 mi12:45:022:43:436:155:41
5:35
-0:45

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

5:35 /mi

Average Pace

6:15 /mi

Slowest Pace

6:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

37:08

23% of race

Time at Steady Pace

2:06:35

77% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:15 /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 mi10:21:3220:136:3020:13
6:30
#2302
10K
6.21 mi10:41:0539:466:2419:33
6:18
#1973
15K
9.32 mi11:00:3959:206:2219:34
6:18
#1850
20K
12.43 mi11:20:191:19:006:2119:40
6:20
#1746
Half
13.11 mi11:24:351:23:166:214:16
6:15
#1735
25K
15.53 mi11:39:471:38:286:2015:12
6:16
#1657
30K
18.64 mi11:59:221:58:036:2019:35
6:18
#1468
20M
20.00 mi12:07:382:06:196:198:16
6:05
#1347
21M
21.00 mi12:13:592:12:406:196:21
6:21
#1255
35K
21.75 mi12:18:232:17:046:184:24
5:53
#1193
23M
23.00 mi12:26:012:24:426:177:38
6:06
#1115
24M
24.00 mi12:32:002:30:416:175:59
5:59
#1082
40K
24.85 mi12:37:102:35:516:165:10
6:03
#1026
25.2M
25.20 mi12:39:212:38:026:162:11
6:20
#998
Finish
26.22 mi12:45:022:43:436:155:41
5:35
#931
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2302219421941633(Top 6%)1559(Top 10%)1559(Top 29%)
10K6.21 mi3.10 mi1973+3291890+3041890+3041735(Top 7%)1659(Top 11%)1659(Top 31%)
15K9.32 mi3.11 mi1850+1231769+1211769+1211633(Top 6%)1559(Top 10%)1559(Top 29%)
20K12.43 mi3.11 mi1746+1041670+991670+991514(Top 6%)1446(Top 10%)1446(Top 27%)
Half13.11 mi0.68 mi1735+111659+111659+111553(Top 6%)1488(Top 10%)1488(Top 28%)
25K15.53 mi2.42 mi1657+781585+741585+741204(Top 5%)1150(Top 8%)1150(Top 22%)
30K18.64 mi3.11 mi1468+1891403+1821403+182914(Top 3%)869(Top 6%)869(Top 16%)
20M20.00 mi1.36 mi1347+1211287+1161287+116465(Top 2%)431(Top 3%)431(Top 8%)
21M21.00 mi1.00 mi1255+921199+881199+88417(Top 2%)385(Top 3%)385(Top 7%)
35K21.75 mi0.75 mi1193+621139+601139+60493(Top 2%)458(Top 3%)458(Top 9%)
23M23.00 mi1.25 mi1115+781063+761063+76457(Top 2%)427(Top 3%)427(Top 8%)
24M24.00 mi1.00 mi1082+331030+331030+33517(Top 2%)488(Top 3%)488(Top 9%)
40K24.85 mi0.85 mi1026+56975+55975+55397(Top 1%)372(Top 2%)372(Top 7%)
25.2M25.20 mi0.35 mi998+28949+26949+26277(Top 1%)257(Top 2%)257(Top 5%)
Finish26.22 mi1.02 mi931+67884+65884+65136(Top 0.5%)122(Top 0.8%)122(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1633

Males

1559

M18-39

1559

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1735

Males

1659

M18-39

1659

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1633

Males

1559

M18-39

1559

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1514

Males

1446

M18-39

1446

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1553

Males

1488

M18-39

1488

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1204

Males

1150

M18-39

1150

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

914

Males

869

M18-39

869

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

465

Males

431

M18-39

431

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

417

Males

385

M18-39

385

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

493

Males

458

M18-39

458

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

457

Males

427

M18-39

427

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

517

Males

488

M18-39

488

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

397

Males

372

M18-39

372

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

277

Males

257

M18-39

257

25.2M→Finish

25.2 - 26.2 mi

Top 0.5%
×2stories
+22ft-21ft

Overall

136

Males

122

M18-39

122

Passing Analysis

Category:
Athletes Passed
1424
Passed By
53
Net Change
+1371
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2302
5K → 10K34314+329#2302#1973
10K → 15K13714+123#1973#1850
15K → 20K11612+104#1850#1746
20K → Half176+11#1746#1735
Half → 25K813+78#1735#1657
25K → 30K1923+189#1657#1468
30K → 20M1210+121#1468#1347
20M → 21M920+92#1347#1255
21M → 35K620+62#1255#1193
35K → 23M780+78#1193#1115
23M → 24M341+33#1115#1082
24M → 40K560+56#1082#1026
40K → 25.2M280+28#1026#998
25.2M → Finish670+67#998#931
TOTALS142453+1371
📊

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