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BOSTON MARATHON 2023

Jonathan Schwartzman

Bib: 9346•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 37%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:22
Rank: #7492
Start → 5K
22:22 | 7:12/mi
10K· 6.21 mi
44:22
Rank: #7367 (+125)
5K → 10K
22:00 | 7:05/mi
15K· 9.32 mi
1:06:51
Rank: #7567 (-200)
10K → 15K
22:29 | 7:14/mi
20K· 12.43 mi
1:30:01
Rank: #7854 (-287)
15K → 20K
23:10 | 7:27/mi
Half· 13.11 mi
1:35:08
Rank: #7954 (-100)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:53:33
Rank: #8144 (-190)
Half → 25K
18:25 | 7:36/mi
30K· 18.64 mi
2:18:14
Rank: #8484 (-340)
25K → 30K
24:41 | 7:57/mi
20M
2:29:15
Rank: #8652 (-168)
30K → 20M
11:01 | 8:06/mi
21M
2:37:49
Rank: #8758 (-106)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:43:37
Rank: #8818 (-60)
21M → 35K
5:48 | 7:45/mi
23M
2:53:51
Rank: #8917 (-99)
35K → 23M
10:14 | 8:10/mi
24M
3:01:48
Rank: #8983 (-66)
23M → 24M
7:57 | 7:57/mi
40K· 24.85 mi
3:08:42
Rank: #9019 (-36)
24M → 40K
6:54 | 8:04/mi
25.2M
3:11:37
Rank: #9008 (+11)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:19:24
Rank: #9013 (-5)
25.2M → Finish
7:47 | 7:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:08
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:44:16
Pace7:57 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1222:227:1222:22
7:12
-
10K
6.21 mi11:10:1244:227:0822:00
7:05
-0:07
15K
9.32 mi11:32:411:06:517:1022:29
7:14
+0:09
20K
12.43 mi11:55:511:30:017:1523:10
7:27
+0:13
Half
13.11 mi12:00:581:35:087:155:07
7:30
+0:03
25K
15.53 mi12:19:231:53:337:1918:25
7:36
+0:06
30K
18.64 mi12:44:042:18:147:2524:41
7:57
+0:21
20M
20.00 mi12:55:052:29:157:2811:01
8:06
+0:09
21M
21.00 mi13:03:392:37:497:318:34
8:34
+0:28
35K
21.75 mi13:09:272:43:377:315:48
7:45
-0:49
23M
23.00 mi13:19:412:53:517:3410:14
8:10
+0:25
24M
24.00 mi13:27:383:01:487:357:57
7:57
-0:13
40K
24.85 mi13:34:323:08:427:366:54
8:04
+0:07
25.2M
25.20 mi13:37:273:11:377:362:55
8:27
+0:23
Finish
26.22 mi13:45:143:19:247:377:47
7:38
-0:49

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

7:05 /mi

Average Pace

7:37 /mi

Slowest Pace

8:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:08

48% of race

Time at Steady Pace

1:04:38

32% of race

Time at Slower Pace

39:38

20% of race

Average Pace: 7:36 /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 mi10:48:1222:227:1222:22
7:12
#7492
10K
6.21 mi11:10:1244:227:0822:00
7:05
#7367
15K
9.32 mi11:32:411:06:517:1022:29
7:14
#7567
20K
12.43 mi11:55:511:30:017:1523:10
7:27
#7854
Half
13.11 mi12:00:581:35:087:155:07
7:30
#7954
25K
15.53 mi12:19:231:53:337:1918:25
7:36
#8144
30K
18.64 mi12:44:042:18:147:2524:41
7:57
#8484
20M
20.00 mi12:55:052:29:157:2811:01
8:06
#8652
21M
21.00 mi13:03:392:37:497:318:34
8:34
#8758
35K
21.75 mi13:09:272:43:377:315:48
7:45
#8818
23M
23.00 mi13:19:412:53:517:3410:14
8:10
#8917
24M
24.00 mi13:27:383:01:487:357:57
7:57
#8983
40K
24.85 mi13:34:323:08:427:366:54
8:04
#9019
25.2M
25.20 mi13:37:273:11:377:362:55
8:27
#9008
Finish
26.22 mi13:45:143:19:247:377:47
7:38
#9013
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7492664466448057(Top 30%)6960(Top 46%)6960(Top 309%)
10K6.21 mi3.10 mi7367+1256534+1106534+1107326(Top 28%)6477(Top 43%)6477(Top 288%)
15K9.32 mi3.11 mi7567-2006666-1326666-1328057(Top 30%)6960(Top 46%)6960(Top 309%)
20K12.43 mi3.11 mi7854-2876845-1796845-1798965(Top 34%)7483(Top 49%)7483(Top 332%)
Half13.11 mi0.68 mi7954-1006903-586903-5810158(Top 38%)8170(Top 54%)8170(Top 363%)
25K15.53 mi2.42 mi8144-1907001-987001-989494(Top 36%)7705(Top 51%)7705(Top 342%)
30K18.64 mi3.11 mi8484-3407181-1807181-18010456(Top 39%)8070(Top 53%)8070(Top 358%)
20M20.00 mi1.36 mi8652-1687270-897270-8911037(Top 41%)8258(Top 54%)8258(Top 367%)
21M21.00 mi1.00 mi8758-1067320-507320-5010836(Top 41%)8033(Top 53%)8033(Top 357%)
35K21.75 mi0.75 mi8818-607345-257345-2510255(Top 39%)7748(Top 51%)7748(Top 344%)
23M23.00 mi1.25 mi8917-997370-257370-2510956(Top 41%)7937(Top 52%)7937(Top 352%)
24M24.00 mi1.00 mi8983-667382-127382-1210849(Top 41%)7822(Top 52%)7822(Top 347%)
40K24.85 mi0.85 mi9019-367390-87390-810466(Top 39%)7578(Top 50%)7578(Top 337%)
25.2M25.20 mi0.35 mi9008+117375+157375+159191(Top 35%)6851(Top 45%)6851(Top 304%)
Finish26.22 mi1.02 mi9013-57348+277348+279523(Top 36%)7029(Top 46%)7029(Top 312%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8057

Males

6960

M45-49

6960

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7326

Males

6477

M45-49

6477

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8057

Males

6960

M45-49

6960

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8965

Males

7483

M45-49

7483

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10158

Males

8170

M45-49

8170

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9494

Males

7705

M45-49

7705

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10456

Males

8070

M45-49

8070

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11037

Males

8258

M45-49

8258

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

10836

Males

8033

M45-49

8033

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

10255

Males

7748

M45-49

7748

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

10956

Males

7937

M45-49

7937

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10849

Males

7822

M45-49

7822

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10466

Males

7578

M45-49

7578

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9191

Males

6851

M45-49

6851

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9523

Males

7029

M45-49

7029

Passing Analysis

Category:
Athletes Passed
860
Passed By
2381
Net Change
-1521
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7492
5K → 10K284159+125#7492#7367
10K → 15K65265-200#7367#7567
15K → 20K49336-287#7567#7854
20K → Half4104-100#7854#7954
Half → 25K53243-190#7954#8144
25K → 30K70410-340#8144#8484
30K → 20M38206-168#8484#8652
20M → 21M46152-106#8652#8758
21M → 35K2686-60#8758#8818
35K → 23M43142-99#8818#8917
23M → 24M52118-66#8917#8983
24M → 40K3672-36#8983#9019
40K → 25.2M2918+11#9019#9008
25.2M → Finish6570-5#9008#9013
TOTALS8602381-1521
📊

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