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BOSTON MARATHON 2023

Joey Rosenzveig

Bib: 4897•M

QC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 22%
Division (M18-39)
#0 / 5285
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:50
Rank: #6406
Start → 5K
21:50 | 7:02/mi
10K· 6.21 mi
42:51
Rank: #5776 (+630)
5K → 10K
21:01 | 6:46/mi
15K· 9.32 mi
1:03:37
Rank: #5218 (+558)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:24:34
Rank: #4890 (+328)
15K → 20K
20:57 | 6:45/mi
Half· 13.11 mi
1:29:04
Rank: #4803 (+87)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:45:26
Rank: #4557 (+246)
Half → 25K
16:22 | 6:45/mi
30K· 18.64 mi
2:06:36
Rank: #4234 (+323)
25K → 30K
21:10 | 6:49/mi
20M
2:15:50
Rank: #4064 (+170)
30K → 20M
9:14 | 6:48/mi
21M
2:22:54
Rank: #3907 (+157)
20M → 21M
7:04 | 7:04/mi
35K· 21.75 mi
2:27:46
Rank: #3819 (+88)
21M → 35K
4:52 | 6:30/mi
23M
2:36:18
Rank: #3702 (+117)
35K → 23M
8:32 | 6:49/mi
24M
2:43:03
Rank: #3660 (+42)
23M → 24M
6:45 | 6:45/mi
40K· 24.85 mi
2:48:56
Rank: #3619 (+41)
24M → 40K
5:53 | 6:53/mi
25.2M
2:51:30
Rank: #3617 (+2)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:58:16
Rank: #3569 (+48)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:04
Pace6:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:12
Pace6:48 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5821:507:0221:50
7:02
-
10K
6.21 mi11:07:5942:516:5421:01
6:46
-0:16
15K
9.32 mi11:28:451:03:376:5020:46
6:41
-0:05
20K
12.43 mi11:49:421:24:346:4820:57
6:45
+0:04
Half
13.11 mi11:54:121:29:046:484:30
6:36
-0:09
25K
15.53 mi12:10:341:45:266:4716:22
6:45
+0:09
30K
18.64 mi12:31:442:06:366:4721:10
6:49
+0:04
20M
20.00 mi12:40:582:15:506:479:14
6:48
-0:01
21M
21.00 mi12:48:022:22:546:487:04
7:04
+0:16
35K
21.75 mi12:52:542:27:466:484:52
6:30
-0:34
23M
23.00 mi13:01:262:36:186:488:32
6:49
+0:19
24M
24.00 mi13:08:112:43:036:486:45
6:45
-0:04
40K
24.85 mi13:14:042:48:566:485:53
6:53
+0:08
25.2M
25.20 mi13:16:382:51:306:482:34
7:27
+0:34
Finish
26.22 mi13:23:242:58:166:486:46
6:38
-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

6:30 /mi

Average Pace

6:48 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:42

99% of race

Time at Steady Pace

2:34

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:46:5821:507:0221:50
7:02
#6406
10K
6.21 mi11:07:5942:516:5421:01
6:46
#5776
15K
9.32 mi11:28:451:03:376:5020:46
6:41
#5218
20K
12.43 mi11:49:421:24:346:4820:57
6:45
#4890
Half
13.11 mi11:54:121:29:046:484:30
6:36
#4803
25K
15.53 mi12:10:341:45:266:4716:22
6:45
#4557
30K
18.64 mi12:31:442:06:366:4721:10
6:49
#4234
20M
20.00 mi12:40:582:15:506:479:14
6:48
#4064
21M
21.00 mi12:48:022:22:546:487:04
7:04
#3907
35K
21.75 mi12:52:542:27:466:484:52
6:30
#3819
23M
23.00 mi13:01:262:36:186:488:32
6:49
#3702
24M
24.00 mi13:08:112:43:036:486:45
6:45
#3660
40K
24.85 mi13:14:042:48:566:485:53
6:53
#3619
25.2M
25.20 mi13:16:382:51:306:482:34
7:27
#3617
Finish
26.22 mi13:23:242:58:166:486:46
6:38
#3569
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6406581258123972(Top 15%)3733(Top 25%)3733(Top 71%)
10K6.21 mi3.10 mi5776+6305301+5115301+5114934(Top 19%)4573(Top 30%)4573(Top 87%)
15K9.32 mi3.11 mi5218+5584834+4674834+4673972(Top 15%)3733(Top 25%)3733(Top 71%)
20K12.43 mi3.11 mi4890+3284554+2804554+2803914(Top 15%)3688(Top 24%)3688(Top 70%)
Half13.11 mi0.68 mi4803+874475+794475+793403(Top 13%)3234(Top 21%)3234(Top 61%)
25K15.53 mi2.42 mi4557+2464254+2214254+2213740(Top 14%)3520(Top 23%)3520(Top 67%)
30K18.64 mi3.11 mi4234+3233973+2813973+2813073(Top 12%)2903(Top 19%)2903(Top 55%)
20M20.00 mi1.36 mi4064+1703817+1563817+1562792(Top 10%)2639(Top 17%)2639(Top 50%)
21M21.00 mi1.00 mi3907+1573676+1413676+1412485(Top 9%)2348(Top 15%)2348(Top 44%)
35K21.75 mi0.75 mi3819+883595+813595+812470(Top 9%)2342(Top 15%)2342(Top 44%)
23M23.00 mi1.25 mi3702+1173489+1063489+1062750(Top 10%)2576(Top 17%)2576(Top 49%)
24M24.00 mi1.00 mi3660+423451+383451+383373(Top 13%)3110(Top 20%)3110(Top 59%)
40K24.85 mi0.85 mi3619+413410+413410+413223(Top 12%)2953(Top 19%)2953(Top 56%)
25.2M25.20 mi0.35 mi3617+23406+43406+43598(Top 14%)3226(Top 21%)3226(Top 61%)
Finish26.22 mi1.02 mi3569+483359+473359+473196(Top 12%)2873(Top 19%)2873(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

3972

Males

3733

M18-39

3733

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

4934

Males

4573

M18-39

4573

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

3972

Males

3733

M18-39

3733

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3914

Males

3688

M18-39

3688

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3403

Males

3234

M18-39

3234

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3740

Males

3520

M18-39

3520

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3073

Males

2903

M18-39

2903

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2792

Males

2639

M18-39

2639

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2485

Males

2348

M18-39

2348

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2470

Males

2342

M18-39

2342

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2750

Males

2576

M18-39

2576

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3373

Males

3110

M18-39

3110

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3223

Males

2953

M18-39

2953

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3598

Males

3226

M18-39

3226

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3196

Males

2873

M18-39

2873

Passing Analysis

Category:
Athletes Passed
3028
Passed By
191
Net Change
+2837
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6406
5K → 10K65323+630#6406#5776
10K → 15K5657+558#5776#5218
15K → 20K3368+328#5218#4890
20K → Half881+87#4890#4803
Half → 25K25812+246#4803#4557
25K → 30K3307+323#4557#4234
30K → 20M1755+170#4234#4064
20M → 21M1658+157#4064#3907
21M → 35K946+88#3907#3819
35K → 23M13215+117#3819#3702
23M → 24M6927+42#3702#3660
24M → 40K6221+41#3660#3619
40K → 25.2M2422+2#3619#3617
25.2M → Finish7729+48#3617#3569
TOTALS3028191+2837
📊

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