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BOSTON MARATHON 2023

Samuel Feinberg

Bib: 30350•M

CA

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
29:22
Rank: #21948
Start → 5K
9:27/mi
29:22 split
10K· 6.21 mi
58:35
Rank: #22136 (-188)
5K → 10K
9:24/mi
29:13 split
15K· 9.32 mi
1:26:27
Rank: #21614 (+522)
10K → 15K
8:58/mi
27:52 split
20K· 12.43 mi
1:55:47
Rank: #21557 (+57)
15K → 20K
9:26/mi
29:20 split
Half· 13.11 mi
2:02:08
Rank: #21555 (+2)
20K → Half
9:18/mi
6:21 split
25K· 15.53 mi
2:25:29
Rank: #21502 (+53)
Half → 25K
9:38/mi
23:21 split
30K· 18.64 mi
2:55:14
Rank: #21183 (+319)
25K → 30K
9:35/mi
29:45 split
20M
3:08:16
Rank: #21010 (+173)
30K → 20M
9:35/mi
13:02 split
21M
3:18:44
Rank: #20897 (+113)
20M → 21M
10:28/mi
10:28 split
35K· 21.75 mi
3:25:16
Rank: #20758 (+139)
21M → 35K
8:44/mi
6:32 split
23M
3:36:44
Rank: #20540 (+218)
35K → 23M
9:09/mi
11:28 split
24M
3:45:31
Rank: #20380 (+160)
23M → 24M
8:47/mi
8:47 split
40K· 24.85 mi
3:52:59
Rank: #20221 (+159)
24M → 40K
8:44/mi
7:28 split
25.2M
3:55:50
Rank: #20108 (+113)
40K → 25.2M
8:16/mi
2:51 split
Finish· 26.22 mi
4:03:35
Rank: #19843 (+265)
25.2M → Finish
7:36/mi
7:45 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:02:08
Pace9:19 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:01:27
Pace9:16 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2629:229:2729:22
9:27
-
10K
6.21 mi12:23:3958:359:2629:13
9:24
-0:03
15K
9.32 mi12:51:311:26:279:1727:52
8:58
-0:26
20K
12.43 mi13:20:511:55:479:1929:20
9:26
+0:28
Half
13.11 mi13:27:122:02:089:196:21
9:18
-0:08
25K
15.53 mi13:50:332:25:299:2223:21
9:38
+0:20
30K
18.64 mi14:20:182:55:149:2429:45
9:35
-0:03
20M
20.00 mi14:33:203:08:169:2513:02
9:35
0:00
21M
21.00 mi14:43:483:18:449:2810:28
10:28
+0:53
35K
21.75 mi14:50:203:25:169:266:32
8:44
-1:44
23M
23.00 mi15:01:483:36:449:2511:28
9:09
+0:25
24M
24.00 mi15:10:353:45:319:248:47
8:47
-0:22
40K
24.85 mi15:18:033:52:599:227:28
8:44
-0:03
25.2M
25.20 mi15:20:543:55:509:222:51
8:16
-0:28
Finish
26.22 mi15:28:394:03:359:187:45
7:36
-0:40

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

7:36 /mi

Average Pace

9:18 /mi

Slowest Pace

10:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:15

25% of race

Time at Steady Pace

2:28:31

61% of race

Time at Slower Pace

33:49

14% of race

Average Pace: 9:17 /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 mi11:54:2629:229:2729:22
9:27
#21948
10K
6.21 mi12:23:3958:359:2629:13
9:24
#22136
15K
9.32 mi12:51:311:26:279:1727:52
8:58
#21614
20K
12.43 mi13:20:511:55:479:1929:20
9:26
#21557
Half
13.11 mi13:27:122:02:089:196:21
9:18
#21555
25K
15.53 mi13:50:332:25:299:2223:21
9:38
#21502
30K
18.64 mi14:20:182:55:149:2429:45
9:35
#21183
20M
20.00 mi14:33:203:08:169:2513:02
9:35
#21010
21M
21.00 mi14:43:483:18:449:2810:28
10:28
#20897
35K
21.75 mi14:50:203:25:169:266:32
8:44
#20758
23M
23.00 mi15:01:483:36:449:2511:28
9:09
#20540
24M
24.00 mi15:10:353:45:319:248:47
8:47
#20380
40K
24.85 mi15:18:033:52:599:227:28
8:44
#20221
25.2M
25.20 mi15:20:543:55:509:222:51
8:16
#20108
Finish
26.22 mi15:28:394:03:359:187:45
7:36
#19843
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21948130691306920354(Top 76%)12456(Top 82%)12456(Top 236%)
10K6.21 mi3.10 mi22136-18813191-12213191-12222217(Top 83%)13262(Top 87%)13262(Top 251%)
15K9.32 mi3.11 mi21614+52212970+22112970+22120354(Top 76%)12456(Top 82%)12456(Top 236%)
20K12.43 mi3.11 mi21557+5712951+1912951+1921354(Top 80%)12895(Top 85%)12895(Top 244%)
Half13.11 mi0.68 mi21555+212957-612957-621499(Top 81%)12953(Top 85%)12953(Top 245%)
25K15.53 mi2.42 mi21502+5312937+2012937+2021217(Top 80%)12801(Top 84%)12801(Top 242%)
30K18.64 mi3.11 mi21183+31912780+15712780+15719694(Top 74%)12086(Top 80%)12086(Top 229%)
20M20.00 mi1.36 mi21010+17312689+9112689+9119180(Top 72%)11771(Top 78%)11771(Top 223%)
21M21.00 mi1.00 mi20897+11312625+6412625+6419476(Top 73%)11831(Top 78%)11831(Top 224%)
35K21.75 mi0.75 mi20758+13912552+7312552+7316586(Top 62%)10538(Top 69%)10538(Top 199%)
23M23.00 mi1.25 mi20540+21812446+10612446+10616850(Top 63%)10628(Top 70%)10628(Top 201%)
24M24.00 mi1.00 mi20380+16012367+7912367+7916100(Top 60%)10228(Top 67%)10228(Top 194%)
40K24.85 mi0.85 mi20221+15912284+8312284+8314719(Top 55%)9569(Top 63%)9569(Top 181%)
25.2M25.20 mi0.35 mi20108+11312230+5412230+548103(Top 30%)6263(Top 41%)6263(Top 119%)
Finish26.22 mi1.02 mi19843+26512125+10512125+1059311(Top 35%)6931(Top 46%)6931(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

20354

Males

12456

M18-39

12456

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22217

Males

13262

M18-39

13262

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

20354

Males

12456

M18-39

12456

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21354

Males

12895

M18-39

12895

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21499

Males

12953

M18-39

12953

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21217

Males

12801

M18-39

12801

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

19694

Males

12086

M18-39

12086

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

19180

Males

11771

M18-39

11771

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19476

Males

11831

M18-39

11831

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16586

Males

10538

M18-39

10538

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16850

Males

10628

M18-39

10628

23M→24M

23.0 - 24.0 mi

Top 60%
×6story building
+12ft-82ft

Overall

16100

Males

10228

M18-39

10228

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14719

Males

9569

M18-39

9569

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8103

Males

6263

M18-39

6263

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9311

Males

6931

M18-39

6931

Passing Analysis

Category:
Athletes Passed
2720
Passed By
615
Net Change
+2105
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21948
5K → 10K170358-188#21948#22136
10K → 15K53513+522#22136#21614
15K → 20K15497+57#21614#21557
20K → Half2927+2#21557#21555
Half → 25K13178+53#21555#21502
25K → 30K33617+319#21502#21183
30K → 20M1796+173#21183#21010
20M → 21M12512+113#21010#20897
21M → 35K1401+139#20897#20758
35K → 23M2224+218#20758#20540
23M → 24M1622+160#20540#20380
24M → 40K1590+159#20380#20221
40K → 25.2M1130+113#20221#20108
25.2M → Finish2650+265#20108#19843
TOTALS2720615+2105
📊

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