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BOSTON MARATHON 2023

Jacob Morrow-Spitzer

Bib: 4592•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 22%
Gender (Male)
#0 / 15176
Top 34%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:54
Rank: #6547
Start → 5K
21:54 | 7:03/mi
10K· 6.21 mi
44:03
Rank: #7027 (-480)
5K → 10K
22:09 | 7:08/mi
15K· 9.32 mi
1:06:04
Rank: #7023 (+4)
10K → 15K
22:01 | 7:05/mi
20K· 12.43 mi
1:28:50
Rank: #7208 (-185)
15K → 20K
22:46 | 7:20/mi
Half· 13.11 mi
1:33:39
Rank: #7191 (+17)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:51:15
Rank: #7131 (+60)
Half → 25K
17:36 | 7:16/mi
30K· 18.64 mi
2:14:10
Rank: #6978 (+153)
25K → 30K
22:55 | 7:23/mi
20M
2:24:15
Rank: #6909 (+69)
30K → 20M
10:05 | 7:25/mi
21M
2:31:48
Rank: #6744 (+165)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:37:07
Rank: #6696 (+48)
21M → 35K
5:19 | 7:06/mi
23M
2:46:05
Rank: #6535 (+161)
35K → 23M
8:58 | 7:10/mi
24M
2:52:56
Rank: #6353 (+182)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:58:44
Rank: #6179 (+174)
24M → 40K
5:48 | 6:47/mi
25.2M
3:01:09
Rank: #6080 (+99)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
3:07:23
Rank: #5784 (+296)
25.2M → Finish
6:14 | 6:07/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:33:39
Pace7:09 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:33:44
Pace7:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4421:547:0321:54
7:03
-
10K
6.21 mi10:45:5344:037:0522:09
7:08
+0:05
15K
9.32 mi11:07:541:06:047:0522:01
7:05
-0:03
20K
12.43 mi11:30:401:28:507:0922:46
7:20
+0:15
Half
13.11 mi11:35:291:33:397:094:49
7:04
-0:16
25K
15.53 mi11:53:051:51:157:1017:36
7:16
+0:12
30K
18.64 mi12:16:002:14:107:1222:55
7:23
+0:07
20M
20.00 mi12:26:052:24:157:1310:05
7:25
+0:02
21M
21.00 mi12:33:382:31:487:147:33
7:33
+0:08
35K
21.75 mi12:38:572:37:077:135:19
7:06
-0:27
23M
23.00 mi12:47:552:46:057:138:58
7:10
+0:04
24M
24.00 mi12:54:462:52:567:126:51
6:51
-0:19
40K
24.85 mi13:00:342:58:447:115:48
6:47
-0:04
25.2M
25.20 mi13:02:593:01:097:112:25
7:00
+0:13
Finish
26.22 mi13:09:133:07:237:096:14
6:07
-0:53

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

6:07 /mi

Average Pace

7:09 /mi

Slowest Pace

7:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:53

10% of race

Time at Steady Pace

1:27:35

47% of race

Time at Slower Pace

1:20:55

43% of race

Average Pace: 7:09 /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 mi10:23:4421:547:0321:54
7:03
#6547
10K
6.21 mi10:45:5344:037:0522:09
7:08
#7027
15K
9.32 mi11:07:541:06:047:0522:01
7:05
#7023
20K
12.43 mi11:30:401:28:507:0922:46
7:20
#7208
Half
13.11 mi11:35:291:33:397:094:49
7:04
#7191
25K
15.53 mi11:53:051:51:157:1017:36
7:16
#7131
30K
18.64 mi12:16:002:14:107:1222:55
7:23
#6978
20M
20.00 mi12:26:052:24:157:1310:05
7:25
#6909
21M
21.00 mi12:33:382:31:487:147:33
7:33
#6744
35K
21.75 mi12:38:572:37:077:135:19
7:06
#6696
23M
23.00 mi12:47:552:46:057:138:58
7:10
#6535
24M
24.00 mi12:54:462:52:567:126:51
6:51
#6353
40K
24.85 mi13:00:342:58:447:115:48
6:47
#6179
25.2M
25.20 mi13:02:593:01:097:112:25
7:00
#6080
Finish
26.22 mi13:09:133:07:237:096:14
6:07
#5784
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6547592059207060(Top 27%)6285(Top 41%)6285(Top 119%)
10K6.21 mi3.10 mi7027-4806274-3546274-3547601(Top 29%)6672(Top 44%)6672(Top 126%)
15K9.32 mi3.11 mi7023+46270+46270+47060(Top 27%)6285(Top 41%)6285(Top 119%)
20K12.43 mi3.11 mi7208-1856397-1276397-1277969(Top 30%)6863(Top 45%)6863(Top 130%)
Half13.11 mi0.68 mi7191+176385+126385+126852(Top 26%)6109(Top 40%)6109(Top 116%)
25K15.53 mi2.42 mi7131+606327+586327+586986(Top 26%)6140(Top 40%)6140(Top 116%)
30K18.64 mi3.11 mi6978+1536195+1326195+1326447(Top 24%)5691(Top 38%)5691(Top 108%)
20M20.00 mi1.36 mi6909+696137+586137+586279(Top 24%)5495(Top 36%)5495(Top 104%)
21M21.00 mi1.00 mi6744+1655998+1395998+1394830(Top 18%)4357(Top 29%)4357(Top 82%)
35K21.75 mi0.75 mi6696+485954+445954+445923(Top 22%)5176(Top 34%)5176(Top 98%)
23M23.00 mi1.25 mi6535+1615823+1315823+1314614(Top 17%)4173(Top 27%)4173(Top 79%)
24M24.00 mi1.00 mi6353+1825675+1485675+1483952(Top 15%)3611(Top 24%)3611(Top 68%)
40K24.85 mi0.85 mi6179+1745534+1415534+1412776(Top 10%)2562(Top 17%)2562(Top 48%)
25.2M25.20 mi0.35 mi6080+995454+805454+801828(Top 7%)1721(Top 11%)1721(Top 33%)
Finish26.22 mi1.02 mi5784+2965214+2405214+2401061(Top 4%)1010(Top 7%)1010(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7060

Males

6285

M18-39

6285

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7601

Males

6672

M18-39

6672

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7060

Males

6285

M18-39

6285

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7969

Males

6863

M18-39

6863

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6852

Males

6109

M18-39

6109

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

6986

Males

6140

M18-39

6140

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6447

Males

5691

M18-39

5691

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6279

Males

5495

M18-39

5495

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4830

Males

4357

M18-39

4357

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5923

Males

5176

M18-39

5176

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4614

Males

4173

M18-39

4173

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3952

Males

3611

M18-39

3611

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2776

Males

2562

M18-39

2562

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1828

Males

1721

M18-39

1721

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1061

Males

1010

M18-39

1010

Passing Analysis

Category:
Athletes Passed
1820
Passed By
1057
Net Change
+763
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6547
5K → 10K49529-480#6547#7027
10K → 15K131127+4#7027#7023
15K → 20K55240-185#7023#7208
20K → Half258+17#7208#7191
Half → 25K11858+60#7191#7131
25K → 30K20047+153#7131#6978
30K → 20M9627+69#6978#6909
20M → 21M1694+165#6909#6744
21M → 35K5810+48#6744#6696
35K → 23M1676+161#6696#6535
23M → 24M1820+182#6535#6353
24M → 40K1751+174#6353#6179
40K → 25.2M990+99#6179#6080
25.2M → Finish2960+296#6080#5784
TOTALS18201057+763
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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