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BOSTON MARATHON 2023

Jonathan Corso

Bib: 5154•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:37
Rank: #13433
Start → 5K
24:37 | 7:55/mi
10K· 6.21 mi
48:50
Rank: #13251 (+182)
5K → 10K
24:13 | 7:48/mi
15K· 9.32 mi
1:13:16
Rank: #13224 (+27)
10K → 15K
24:26 | 7:52/mi
20K· 12.43 mi
1:37:36
Rank: #12880 (+344)
15K → 20K
24:20 | 7:50/mi
Half· 13.11 mi
1:42:55
Rank: #12867 (+13)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:02:23
Rank: #12846 (+21)
Half → 25K
19:28 | 8:02/mi
30K· 18.64 mi
2:28:15
Rank: #12924 (-78)
25K → 30K
25:52 | 8:20/mi
20M
2:39:47
Rank: #12954 (-30)
30K → 20M
11:32 | 8:29/mi
21M
2:48:39
Rank: #12909 (+45)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:54:54
Rank: #12961 (-52)
21M → 35K
6:15 | 8:21/mi
23M
3:05:58
Rank: #13085 (-124)
35K → 23M
11:04 | 8:50/mi
24M
3:14:15
Rank: #13071 (+14)
23M → 24M
8:17 | 8:17/mi
40K· 24.85 mi
3:21:23
Rank: #13031 (+40)
24M → 40K
7:08 | 8:21/mi
25.2M
3:24:25
Rank: #12994 (+37)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:32:38
Rank: #12963 (+31)
25.2M → Finish
8:13 | 8:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:55
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:49:43
Pace8:22 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5524:377:5524:37
7:55
-
10K
6.21 mi11:19:0848:507:5224:13
7:48
-0:07
15K
9.32 mi11:43:341:13:167:5224:26
7:52
+0:04
20K
12.43 mi12:07:541:37:367:5124:20
7:50
-0:02
Half
13.11 mi12:13:131:42:557:515:19
7:48
-0:02
25K
15.53 mi12:32:412:02:237:5319:28
8:02
+0:14
30K
18.64 mi12:58:332:28:157:5725:52
8:20
+0:18
20M
20.00 mi13:10:052:39:477:5911:32
8:29
+0:09
21M
21.00 mi13:18:572:48:398:028:52
8:52
+0:23
35K
21.75 mi13:25:122:54:548:036:15
8:21
-0:31
23M
23.00 mi13:36:163:05:588:0511:04
8:50
+0:29
24M
24.00 mi13:44:333:14:158:068:17
8:17
-0:33
40K
24.85 mi13:51:413:21:238:067:08
8:21
+0:04
25.2M
25.20 mi13:54:433:24:258:073:02
8:48
+0:27
Finish
26.22 mi14:02:563:32:388:078:13
8:04
-0:44

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

7:48 /mi

Average Pace

8:07 /mi

Slowest Pace

8:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:40

89% of race

Time at Steady Pace

22:58

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi10:54:5524:377:5524:37
7:55
#13433
10K
6.21 mi11:19:0848:507:5224:13
7:48
#13251
15K
9.32 mi11:43:341:13:167:5224:26
7:52
#13224
20K
12.43 mi12:07:541:37:367:5124:20
7:50
#12880
Half
13.11 mi12:13:131:42:557:515:19
7:48
#12867
25K
15.53 mi12:32:412:02:237:5319:28
8:02
#12846
30K
18.64 mi12:58:332:28:157:5725:52
8:20
#12924
20M
20.00 mi13:10:052:39:477:5911:32
8:29
#12954
21M
21.00 mi13:18:572:48:398:028:52
8:52
#12909
35K
21.75 mi13:25:122:54:548:036:15
8:21
#12961
23M
23.00 mi13:36:163:05:588:0511:04
8:50
#13085
24M
24.00 mi13:44:333:14:158:068:17
8:17
#13071
40K
24.85 mi13:51:413:21:238:067:08
8:21
#13031
25.2M
25.20 mi13:54:433:24:258:073:02
8:48
#12994
Finish
26.22 mi14:02:563:32:388:078:13
8:04
#12963
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi134339731973113224(Top 50%)9587(Top 63%)9587(Top 467%)
10K6.21 mi3.10 mi13251+1829638+939638+9313056(Top 49%)9576(Top 63%)9576(Top 467%)
15K9.32 mi3.11 mi13224+279618+209618+2013224(Top 50%)9587(Top 63%)9587(Top 467%)
20K12.43 mi3.11 mi12880+3449455+1639455+16311997(Top 45%)9010(Top 59%)9010(Top 439%)
Half13.11 mi0.68 mi12867+139448+79448+712605(Top 47%)9330(Top 61%)9330(Top 455%)
25K15.53 mi2.42 mi12846+219401+479401+4712971(Top 49%)9342(Top 62%)9342(Top 455%)
30K18.64 mi3.11 mi12924-789405-49405-413171(Top 49%)9300(Top 61%)9300(Top 453%)
20M20.00 mi1.36 mi12954-309396+99396+913527(Top 51%)9369(Top 62%)9369(Top 457%)
21M21.00 mi1.00 mi12909+459358+389358+3812625(Top 47%)8863(Top 58%)8863(Top 432%)
35K21.75 mi0.75 mi12961-529357+19357+114392(Top 54%)9587(Top 63%)9587(Top 467%)
23M23.00 mi1.25 mi13085-1249397-409397-4015176(Top 57%)9877(Top 65%)9877(Top 481%)
24M24.00 mi1.00 mi13071+149364+339364+3313148(Top 49%)8924(Top 59%)8924(Top 435%)
40K24.85 mi0.85 mi13031+409321+439321+4312311(Top 46%)8467(Top 56%)8467(Top 413%)
25.2M25.20 mi0.35 mi12994+379297+249297+2411275(Top 42%)7938(Top 52%)7938(Top 387%)
Finish26.22 mi1.02 mi12963+319266+319266+3112540(Top 47%)8547(Top 56%)8547(Top 417%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13224

Males

9587

M50-54

9587

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

13056

Males

9576

M50-54

9576

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13224

Males

9587

M50-54

9587

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11997

Males

9010

M50-54

9010

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12605

Males

9330

M50-54

9330

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

12971

Males

9342

M50-54

9342

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13171

Males

9300

M50-54

9300

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13527

Males

9369

M50-54

9369

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12625

Males

8863

M50-54

8863

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14392

Males

9587

M50-54

9587

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15176

Males

9877

M50-54

9877

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13148

Males

8924

M50-54

8924

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12311

Males

8467

M50-54

8467

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11275

Males

7938

M50-54

7938

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12540

Males

8547

M50-54

8547

Passing Analysis

Category:
Athletes Passed
1929
Passed By
1459
Net Change
+470
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13433
5K → 10K405223+182#13433#13251
10K → 15K214187+27#13251#13224
15K → 20K39046+344#13224#12880
20K → Half4330+13#12880#12867
Half → 25K158137+21#12867#12846
25K → 30K154232-78#12846#12924
30K → 20M90120-30#12924#12954
20M → 21M12176+45#12954#12909
21M → 35K2981-52#12909#12961
35K → 23M62186-124#12961#13085
23M → 24M7056+14#13085#13071
24M → 40K8242+40#13071#13031
40K → 25.2M447+37#13031#12994
25.2M → Finish6736+31#12994#12963
TOTALS19291459+470
📊

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