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BOSTON MARATHON 2023

Jacob Lebowitz

Bib: 26877•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
26:52
Rank: #18532
Start → 5K
8:39/mi
26:52 split
10K· 6.21 mi
52:05
Rank: #17077 (+1455)
5K → 10K
8:07/mi
25:13 split
15K· 9.32 mi
1:17:28
Rank: #16589 (+488)
10K → 15K
8:10/mi
25:23 split
20K· 12.43 mi
1:42:56
Rank: #16133 (+456)
15K → 20K
8:12/mi
25:28 split
Half· 13.11 mi
1:48:24
Rank: #16046 (+87)
20K → Half
8:01/mi
5:28 split
25K· 15.53 mi
2:08:52
Rank: #16000 (+46)
Half → 25K
8:26/mi
20:28 split
30K· 18.64 mi
2:35:27
Rank: #15745 (+255)
25K → 30K
8:33/mi
26:35 split
20M
2:46:59
Rank: #15551 (+194)
30K → 20M
8:29/mi
11:32 split
21M
2:55:56
Rank: #15374 (+177)
20M → 21M
8:57/mi
8:57 split
35K· 21.75 mi
3:02:15
Rank: #15342 (+32)
21M → 35K
8:27/mi
6:19 split
23M
3:12:49
Rank: #15181 (+161)
35K → 23M
8:26/mi
10:34 split
24M
3:21:00
Rank: #15053 (+128)
23M → 24M
8:11/mi
8:11 split
40K· 24.85 mi
3:28:00
Rank: #14903 (+150)
24M → 40K
8:11/mi
7:00 split
25.2M
3:30:47
Rank: #14772 (+131)
40K → 25.2M
8:04/mi
2:47 split
Finish· 26.22 mi
3:38:27
Rank: #14544 (+228)
25.2M → Finish
7:31/mi
7:40 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:24
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:50:03
Pace8:24 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:1026:528:3926:52
8:39
-
10K
6.21 mi12:08:2352:058:2325:13
8:07
-0:32
15K
9.32 mi12:33:461:17:288:1925:23
8:10
+0:03
20K
12.43 mi12:59:141:42:568:1725:28
8:12
+0:02
Half
13.11 mi13:04:421:48:248:165:28
8:01
-0:11
25K
15.53 mi13:25:102:08:528:1820:28
8:26
+0:25
30K
18.64 mi13:51:452:35:278:2026:35
8:33
+0:07
20M
20.00 mi14:03:172:46:598:2111:32
8:29
-0:04
21M
21.00 mi14:12:142:55:568:238:57
8:57
+0:28
35K
21.75 mi14:18:333:02:158:236:19
8:27
-0:30
23M
23.00 mi14:29:073:12:498:2310:34
8:26
-0:01
24M
24.00 mi14:37:183:21:008:238:11
8:11
-0:15
40K
24.85 mi14:44:183:28:008:227:00
8:11
0:00
25.2M
25.20 mi14:47:053:30:478:222:47
8:04
-0:07
Finish
26.22 mi14:54:453:38:278:207:40
7:31
-0:33

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

7:31 /mi

Average Pace

8:20 /mi

Slowest Pace

8:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:10

49% of race

Time at Steady Pace

1:42:20

47% of race

Time at Slower Pace

8:57

4% of race

Average Pace: 8:20 /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 mi11:43:1026:528:3926:52
8:39
#18532
10K
6.21 mi12:08:2352:058:2325:13
8:07
#17077
15K
9.32 mi12:33:461:17:288:1925:23
8:10
#16589
20K
12.43 mi12:59:141:42:568:1725:28
8:12
#16133
Half
13.11 mi13:04:421:48:248:165:28
8:01
#16046
25K
15.53 mi13:25:102:08:528:1820:28
8:26
#16000
30K
18.64 mi13:51:452:35:278:2026:35
8:33
#15745
20M
20.00 mi14:03:172:46:598:2111:32
8:29
#15551
21M
21.00 mi14:12:142:55:568:238:57
8:57
#15374
35K
21.75 mi14:18:333:02:158:236:19
8:27
#15342
23M
23.00 mi14:29:073:12:498:2310:34
8:26
#15181
24M
24.00 mi14:37:183:21:008:238:11
8:11
#15053
40K
24.85 mi14:44:183:28:008:227:00
8:11
#14903
25.2M
25.20 mi14:47:053:30:478:222:47
8:04
#14772
Finish
26.22 mi14:54:453:38:278:207:40
7:31
#14544
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi18532116161161615642(Top 59%)10545(Top 69%)10545(Top 200%)
10K6.21 mi3.10 mi17077+145511088+52811088+52815616(Top 59%)10567(Top 70%)10567(Top 200%)
15K9.32 mi3.11 mi16589+48810910+17810910+17815642(Top 59%)10545(Top 69%)10545(Top 200%)
20K12.43 mi3.11 mi16133+45610727+18310727+18314932(Top 56%)10243(Top 67%)10243(Top 194%)
Half13.11 mi0.68 mi16046+8710687+4010687+4014436(Top 54%)10075(Top 66%)10075(Top 191%)
25K15.53 mi2.42 mi16000+4610640+4710640+4715831(Top 59%)10472(Top 69%)10472(Top 198%)
30K18.64 mi3.11 mi15745+25510504+13610504+13614647(Top 55%)9911(Top 65%)9911(Top 188%)
20M20.00 mi1.36 mi15551+19410409+9510409+9513541(Top 51%)9383(Top 62%)9383(Top 178%)
21M21.00 mi1.00 mi15374+17710311+9810311+9813112(Top 49%)9094(Top 60%)9094(Top 172%)
35K21.75 mi0.75 mi15342+3210290+2110290+2114949(Top 56%)9854(Top 65%)9854(Top 186%)
23M23.00 mi1.25 mi15181+16110210+8010210+8012841(Top 48%)8847(Top 58%)8847(Top 167%)
24M24.00 mi1.00 mi15053+12810151+5910151+5912479(Top 47%)8625(Top 57%)8625(Top 163%)
40K24.85 mi0.85 mi14903+15010064+8710064+8711269(Top 42%)7974(Top 53%)7974(Top 151%)
25.2M25.20 mi0.35 mi14772+1319999+659999+656932(Top 26%)5564(Top 37%)5564(Top 105%)
Finish26.22 mi1.02 mi14544+2289902+979902+978731(Top 33%)6609(Top 44%)6609(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15642

Males

10545

M18-39

10545

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15616

Males

10567

M18-39

10567

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15642

Males

10545

M18-39

10545

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14932

Males

10243

M18-39

10243

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14436

Males

10075

M18-39

10075

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15831

Males

10472

M18-39

10472

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

14647

Males

9911

M18-39

9911

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13541

Males

9383

M18-39

9383

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13112

Males

9094

M18-39

9094

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14949

Males

9854

M18-39

9854

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12841

Males

8847

M18-39

8847

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12479

Males

8625

M18-39

8625

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11269

Males

7974

M18-39

7974

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6932

Males

5564

M18-39

5564

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8731

Males

6609

M18-39

6609

Passing Analysis

Category:
Athletes Passed
4368
Passed By
380
Net Change
+3988
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18532
5K → 10K149944+1455#18532#17077
10K → 15K54254+488#17077#16589
15K → 20K47721+456#16589#16133
20K → Half914+87#16133#16046
Half → 25K154108+46#16046#16000
25K → 30K32166+255#16000#15745
30K → 20M2017+194#15745#15551
20M → 21M18811+177#15551#15374
21M → 35K6129+32#15374#15342
35K → 23M18423+161#15342#15181
23M → 24M1357+128#15181#15053
24M → 40K1533+150#15053#14903
40K → 25.2M1310+131#14903#14772
25.2M → Finish2313+228#14772#14544
TOTALS4368380+3988
📊

Passing Visuals

Category:
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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