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BOSTON MARATHON 2023

Michael Rosenblum

Bib: 14854•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 50%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:15
Rank: #12382
Start → 5K
24:15 | 7:48/mi
10K· 6.21 mi
48:45
Rank: #13151 (-769)
5K → 10K
24:30 | 7:53/mi
15K· 9.32 mi
1:13:37
Rank: #13559 (-408)
10K → 15K
24:52 | 8:00/mi
20K· 12.43 mi
1:38:50
Rank: #13721 (-162)
15K → 20K
25:13 | 8:07/mi
Half· 13.11 mi
1:44:23
Rank: #13799 (-78)
20K → Half
5:33 | 8:08/mi
25K· 15.53 mi
2:04:17
Rank: #13875 (-76)
Half → 25K
19:54 | 8:12/mi
30K· 18.64 mi
2:30:17
Rank: #13780 (+95)
25K → 30K
26:00 | 8:22/mi
20M
2:41:50
Rank: #13760 (+20)
30K → 20M
11:33 | 8:30/mi
21M
2:50:38
Rank: #13649 (+111)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
2:56:42
Rank: #13609 (+40)
21M → 35K
6:04 | 8:07/mi
23M
3:07:05
Rank: #13472 (+137)
35K → 23M
10:23 | 8:18/mi
24M
3:15:16
Rank: #13384 (+88)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:22:21
Rank: #13306 (+78)
24M → 40K
7:05 | 8:17/mi
25.2M
3:25:24
Rank: #13252 (+54)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:33:27
Rank: #13177 (+75)
25.2M → Finish
8:03 | 7:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:23
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:49:04
Pace8:19 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2724:157:4824:15
7:48
-
10K
6.21 mi11:17:5748:457:5124:30
7:53
+0:05
15K
9.32 mi11:42:491:13:377:5424:52
8:00
+0:07
20K
12.43 mi12:08:021:38:507:5725:13
8:07
+0:07
Half
13.11 mi12:13:351:44:237:585:33
8:08
+0:01
25K
15.53 mi12:33:292:04:178:0019:54
8:12
+0:04
30K
18.64 mi12:59:292:30:178:0426:00
8:22
+0:10
20M
20.00 mi13:11:022:41:508:0511:33
8:30
+0:08
21M
21.00 mi13:19:502:50:388:088:48
8:48
+0:18
35K
21.75 mi13:25:542:56:428:076:04
8:07
-0:41
23M
23.00 mi13:36:173:07:058:0810:23
8:18
+0:11
24M
24.00 mi13:44:283:15:168:088:11
8:11
-0:07
40K
24.85 mi13:51:333:22:218:087:05
8:17
+0:06
25.2M
25.20 mi13:54:363:25:248:093:03
8:51
+0:34
Finish
26.22 mi14:02:393:33:278:098:03
7:54
-0:57

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

8:09 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:36

94% of race

Time at Steady Pace

11:51

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:08 /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 mi10:53:2724:157:4824:15
7:48
#12382
10K
6.21 mi11:17:5748:457:5124:30
7:53
#13151
15K
9.32 mi11:42:491:13:377:5424:52
8:00
#13559
20K
12.43 mi12:08:021:38:507:5725:13
8:07
#13721
Half
13.11 mi12:13:351:44:237:585:33
8:08
#13799
25K
15.53 mi12:33:292:04:178:0019:54
8:12
#13875
30K
18.64 mi12:59:292:30:178:0426:00
8:22
#13780
20M
20.00 mi13:11:022:41:508:0511:33
8:30
#13760
21M
21.00 mi13:19:502:50:388:088:48
8:48
#13649
35K
21.75 mi13:25:542:56:428:076:04
8:07
#13609
23M
23.00 mi13:36:173:07:058:0810:23
8:18
#13472
24M
24.00 mi13:44:283:15:168:088:11
8:11
#13384
40K
24.85 mi13:51:333:22:218:087:05
8:17
#13306
25.2M
25.20 mi13:54:363:25:248:093:03
8:51
#13252
Finish
26.22 mi14:02:393:33:278:098:03
7:54
#13177
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi123829279927914405(Top 54%)10063(Top 66%)10063(Top 708%)
10K6.21 mi3.10 mi13151-7699597-3189597-31813847(Top 52%)9874(Top 65%)9874(Top 694%)
15K9.32 mi3.11 mi13559-4089751-1549751-15414405(Top 54%)10063(Top 66%)10063(Top 708%)
20K12.43 mi3.11 mi13721-1629786-359786-3514311(Top 54%)9998(Top 66%)9998(Top 703%)
Half13.11 mi0.68 mi13799-789820-349820-3415287(Top 57%)10399(Top 69%)10399(Top 731%)
25K15.53 mi2.42 mi13875-769820982014272(Top 54%)9877(Top 65%)9877(Top 695%)
30K18.64 mi3.11 mi13780+959756+649756+6413458(Top 51%)9436(Top 62%)9436(Top 664%)
20M20.00 mi1.36 mi13760+209726+309726+3013603(Top 51%)9407(Top 62%)9407(Top 662%)
21M21.00 mi1.00 mi13649+1119670+569670+5612239(Top 46%)8693(Top 57%)8693(Top 611%)
35K21.75 mi0.75 mi13609+409640+309640+3012819(Top 48%)8906(Top 59%)8906(Top 626%)
23M23.00 mi1.25 mi13472+1379554+869554+8611830(Top 44%)8395(Top 55%)8395(Top 590%)
24M24.00 mi1.00 mi13384+889504+509504+5012470(Top 47%)8616(Top 57%)8616(Top 606%)
40K24.85 mi0.85 mi13306+789443+619443+6111900(Top 45%)8279(Top 55%)8279(Top 582%)
25.2M25.20 mi0.35 mi13252+549411+329411+3211551(Top 43%)8065(Top 53%)8065(Top 567%)
Finish26.22 mi1.02 mi13177+759357+549357+5411382(Top 43%)7984(Top 53%)7984(Top 561%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14405

Males

10063

M55-59

10063

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13847

Males

9874

M55-59

9874

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14405

Males

10063

M55-59

10063

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14311

Males

9998

M55-59

9998

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15287

Males

10399

M55-59

10399

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14272

Males

9877

M55-59

9877

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13458

Males

9436

M55-59

9436

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13603

Males

9407

M55-59

9407

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12239

Males

8693

M55-59

8693

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12819

Males

8906

M55-59

8906

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11830

Males

8395

M55-59

8395

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12470

Males

8616

M55-59

8616

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11900

Males

8279

M55-59

8279

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11551

Males

8065

M55-59

8065

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11382

Males

7984

M55-59

7984

Passing Analysis

Category:
Athletes Passed
1516
Passed By
2311
Net Change
-795
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12382
5K → 10K95864-769#12382#13151
10K → 15K74482-408#13151#13559
15K → 20K138300-162#13559#13721
20K → Half1088-78#13721#13799
Half → 25K107183-76#13799#13875
25K → 30K225130+95#13875#13780
30K → 20M9979+20#13780#13760
20M → 21M15039+111#13760#13649
21M → 35K7232+40#13649#13609
35K → 23M16124+137#13609#13472
23M → 24M12032+88#13472#13384
24M → 40K10022+78#13384#13306
40K → 25.2M6511+54#13306#13252
25.2M → Finish10025+75#13252#13177
TOTALS15162311-795
📊

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