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BOSTON MARATHON 2023

Josiah Mccarthy

Bib: 4096•M

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
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
19:55
Rank: #1843
Start → 5K
19:55 | 6:25/mi
10K· 6.21 mi
39:30
Rank: #1799 (+44)
5K → 10K
19:35 | 6:18/mi
15K· 9.32 mi
59:05
Rank: #1736 (+63)
10K → 15K
19:35 | 6:18/mi
20K· 12.43 mi
1:18:32
Rank: #1603 (+133)
15K → 20K
19:27 | 6:16/mi
Half· 13.11 mi
1:22:45
Rank: #1585 (+18)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:37:54
Rank: #1493 (+92)
Half → 25K
15:09 | 6:15/mi
30K· 18.64 mi
1:57:18
Rank: #1313 (+180)
25K → 30K
19:24 | 6:15/mi
20M
2:05:40
Rank: #1224 (+89)
30K → 20M
8:22 | 6:09/mi
21M
2:12:01
Rank: #1139 (+85)
20M → 21M
6:21 | 6:21/mi
35K· 21.75 mi
2:16:27
Rank: #1103 (+36)
21M → 35K
4:26 | 5:56/mi
23M
2:24:08
Rank: #1051 (+52)
35K → 23M
7:41 | 6:08/mi
24M
2:30:05
Rank: #991 (+60)
23M → 24M
5:57 | 5:57/mi
40K· 24.85 mi
2:35:22
Rank: #973 (+18)
24M → 40K
5:17 | 6:11/mi
25.2M
2:37:38
Rank: #963 (+10)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:43:47
Rank: #934 (+29)
25.2M → Finish
6:09 | 6:02/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:22:45
Pace6:19 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:21:02
Pace6:11 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5319:556:2519:55
6:25
-
10K
6.21 mi10:41:2839:306:2119:35
6:18
-0:07
15K
9.32 mi11:01:0359:056:2019:35
6:18
0:00
20K
12.43 mi11:20:301:18:326:1919:27
6:16
-0:02
Half
13.11 mi11:24:431:22:456:194:13
6:11
-0:05
25K
15.53 mi11:39:521:37:546:1815:09
6:15
+0:04
30K
18.64 mi11:59:161:57:186:1819:24
6:15
0:00
20M
20.00 mi12:07:382:05:406:178:22
6:09
-0:06
21M
21.00 mi12:13:592:12:016:176:21
6:21
+0:12
35K
21.75 mi12:18:252:16:276:164:26
5:56
-0:25
23M
23.00 mi12:26:062:24:086:167:41
6:08
+0:12
24M
24.00 mi12:32:032:30:056:155:57
5:57
-0:11
40K
24.85 mi12:37:202:35:226:155:17
6:11
+0:14
25.2M
25.20 mi12:39:362:37:386:152:16
6:34
+0:23
Finish
26.22 mi12:45:452:43:476:156:09
6:02
-0:32

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

5:56 /mi

Average Pace

6:15 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:31

99% of race

Time at Steady Pace

2:16

1% 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 mi10:21:5319:556:2519:55
6:25
#1843
10K
6.21 mi10:41:2839:306:2119:35
6:18
#1799
15K
9.32 mi11:01:0359:056:2019:35
6:18
#1736
20K
12.43 mi11:20:301:18:326:1919:27
6:16
#1603
Half
13.11 mi11:24:431:22:456:194:13
6:11
#1585
25K
15.53 mi11:39:521:37:546:1815:09
6:15
#1493
30K
18.64 mi11:59:161:57:186:1819:24
6:15
#1313
20M
20.00 mi12:07:382:05:406:178:22
6:09
#1224
21M
21.00 mi12:13:592:12:016:176:21
6:21
#1139
35K
21.75 mi12:18:252:16:276:164:26
5:56
#1103
23M
23.00 mi12:26:062:24:086:167:41
6:08
#1051
24M
24.00 mi12:32:032:30:056:155:57
5:57
#991
40K
24.85 mi12:37:202:35:226:155:17
6:11
#973
25.2M
25.20 mi12:39:362:37:386:152:16
6:34
#963
Finish
26.22 mi12:45:452:43:476:156:09
6:02
#934
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1843175817581653(Top 6%)1579(Top 10%)1579(Top 30%)
10K6.21 mi3.10 mi1799+441721+371721+371778(Top 7%)1700(Top 11%)1700(Top 32%)
15K9.32 mi3.11 mi1736+631659+621659+621653(Top 6%)1579(Top 10%)1579(Top 30%)
20K12.43 mi3.11 mi1603+1331532+1271532+1271247(Top 5%)1193(Top 8%)1193(Top 23%)
Half13.11 mi0.68 mi1585+181514+181514+181253(Top 5%)1201(Top 8%)1201(Top 23%)
25K15.53 mi2.42 mi1493+921426+881426+881128(Top 4%)1075(Top 7%)1075(Top 20%)
30K18.64 mi3.11 mi1313+1801254+1721254+172778(Top 3%)739(Top 5%)739(Top 14%)
20M20.00 mi1.36 mi1224+891169+851169+85589(Top 2%)555(Top 4%)555(Top 11%)
21M21.00 mi1.00 mi1139+851086+831086+83418(Top 2%)386(Top 3%)386(Top 7%)
35K21.75 mi0.75 mi1103+361050+361050+36571(Top 2%)533(Top 4%)533(Top 10%)
23M23.00 mi1.25 mi1051+521000+501000+50521(Top 2%)490(Top 3%)490(Top 9%)
24M24.00 mi1.00 mi991+60942+58942+58463(Top 2%)436(Top 3%)436(Top 8%)
40K24.85 mi0.85 mi973+18924+18924+18626(Top 2%)591(Top 4%)591(Top 11%)
25.2M25.20 mi0.35 mi963+10914+10914+10619(Top 2%)586(Top 4%)586(Top 11%)
Finish26.22 mi1.02 mi934+29887+27887+27815(Top 3%)781(Top 5%)781(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1653

Males

1579

M18-39

1579

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1778

Males

1700

M18-39

1700

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1653

Males

1579

M18-39

1579

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1247

Males

1193

M18-39

1193

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1253

Males

1201

M18-39

1201

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1128

Males

1075

M18-39

1075

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

778

Males

739

M18-39

739

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

589

Males

555

M18-39

555

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

418

Males

386

M18-39

386

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

571

Males

533

M18-39

533

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

521

Males

490

M18-39

490

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

463

Males

436

M18-39

436

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

626

Males

591

M18-39

591

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

619

Males

586

M18-39

586

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

815

Males

781

M18-39

781

Passing Analysis

Category:
Athletes Passed
1038
Passed By
129
Net Change
+909
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1843
5K → 10K12177+44#1843#1799
10K → 15K9027+63#1799#1736
15K → 20K1396+133#1736#1603
20K → Half235+18#1603#1585
Half → 25K931+92#1585#1493
25K → 30K1800+180#1493#1313
30K → 20M890+89#1313#1224
20M → 21M850+85#1224#1139
21M → 35K360+36#1139#1103
35K → 23M542+52#1103#1051
23M → 24M600+60#1051#991
24M → 40K213+18#991#973
40K → 25.2M111+10#973#963
25.2M → Finish367+29#963#934
TOTALS1038129+909
📊

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