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BOSTON MARATHON 2023

Richard Rosenfeld

Bib: 26084•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
34:33
Rank: #25833
Start → 5K
11:07/mi
34:33 split
10K· 6.21 mi
1:08:43
Rank: #25670 (+163)
5K → 10K
11:00/mi
34:10 split
15K· 9.32 mi
1:44:49
Rank: #25734 (-64)
10K → 15K
11:37/mi
36:06 split
20K· 12.43 mi
2:20:43
Rank: #25611 (+123)
15K → 20K
11:33/mi
35:54 split
Half· 13.11 mi
2:28:12
Rank: #25583 (+28)
20K → Half
10:58/mi
7:29 split
25K· 15.53 mi
2:57:19
Rank: #25510 (+73)
Half → 25K
12:01/mi
29:07 split
30K· 18.64 mi
3:32:41
Rank: #25234 (+276)
25K → 30K
11:23/mi
35:22 split
20M
3:48:54
Rank: #25158 (+76)
30K → 20M
11:56/mi
16:13 split
21M
4:01:02
Rank: #25076 (+82)
20M → 21M
12:08/mi
12:08 split
35K· 21.75 mi
4:09:08
Rank: #25019 (+57)
21M → 35K
10:50/mi
8:06 split
23M
4:23:35
Rank: #24944 (+75)
35K → 23M
11:32/mi
14:27 split
24M
4:34:19
Rank: #24855 (+89)
23M → 24M
10:44/mi
10:44 split
40K· 24.85 mi
4:43:33
Rank: #24784 (+71)
24M → 40K
10:48/mi
9:14 split
25.2M
4:47:23
Rank: #24742 (+42)
40K → 25.2M
11:07/mi
3:50 split
Finish· 26.22 mi
4:57:45
Rank: #24679 (+63)
25.2M → Finish
10:10/mi
10:22 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:28:12
Pace11:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:29:33
Pace11:24 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:1834:3311:0734:33
11:07
-
10K
6.21 mi12:31:281:08:4311:0434:10
11:00
-0:07
15K
9.32 mi13:07:341:44:4911:1536:06
11:37
+0:37
20K
12.43 mi13:43:282:20:4311:1935:54
11:33
-0:04
Half
13.11 mi13:50:572:28:1211:187:29
10:58
-0:35
25K
15.53 mi14:20:042:57:1911:2529:07
12:01
+1:03
30K
18.64 mi14:55:263:32:4111:2535:22
11:23
-0:38
20M
20.00 mi15:11:393:48:5411:2716:13
11:56
+0:33
21M
21.00 mi15:23:474:01:0211:2912:08
12:08
+0:12
35K
21.75 mi15:31:534:09:0811:278:06
10:50
-1:18
23M
23.00 mi15:46:204:23:3511:2814:27
11:32
+0:42
24M
24.00 mi15:57:044:34:1911:2610:44
10:44
-0:48
40K
24.85 mi16:06:184:43:3311:249:14
10:48
+0:04
25.2M
25.20 mi16:10:084:47:2311:243:50
11:07
+0:19
Finish
26.22 mi16:20:304:57:4511:2210:22
10:10
-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

10:10 /mi

Average Pace

11:22 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:28

40% of race

Time at Steady Pace

2:18:02

46% of race

Time at Slower Pace

41:15

14% of race

Average Pace: 11:21 /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 mi11:57:1834:3311:0734:33
11:07
#25833
10K
6.21 mi12:31:281:08:4311:0434:10
11:00
#25670
15K
9.32 mi13:07:341:44:4911:1536:06
11:37
#25734
20K
12.43 mi13:43:282:20:4311:1935:54
11:33
#25611
Half
13.11 mi13:50:572:28:1211:187:29
10:58
#25583
25K
15.53 mi14:20:042:57:1911:2529:07
12:01
#25510
30K
18.64 mi14:55:263:32:4111:2535:22
11:23
#25234
20M
20.00 mi15:11:393:48:5411:2716:13
11:56
#25158
21M
21.00 mi15:23:474:01:0211:2912:08
12:08
#25076
35K
21.75 mi15:31:534:09:0811:278:06
10:50
#25019
23M
23.00 mi15:46:204:23:3511:2814:27
11:32
#24944
24M
24.00 mi15:57:044:34:1911:2610:44
10:44
#24855
40K
24.85 mi16:06:184:43:3311:249:14
10:48
#24784
25.2M
25.20 mi16:10:084:47:2311:243:50
11:07
#24742
Finish
26.22 mi16:20:304:57:4511:2210:22
10:10
#24679
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi25833148671486725809(Top 97%)14863(Top 98%)14863(Top 1339%)
10K6.21 mi3.10 mi25670+16314809+5814809+5825470(Top 96%)14735(Top 97%)14735(Top 1327%)
15K9.32 mi3.11 mi25734-6414841-3214841-3225809(Top 97%)14863(Top 98%)14863(Top 1339%)
20K12.43 mi3.11 mi25611+12314775+6614775+6625308(Top 95%)14627(Top 96%)14627(Top 1318%)
Half13.11 mi0.68 mi25583+2814762+1314762+1324893(Top 94%)14431(Top 95%)14431(Top 1300%)
25K15.53 mi2.42 mi25510+7314720+4214720+4225166(Top 95%)14532(Top 96%)14532(Top 1309%)
30K18.64 mi3.11 mi25234+27614594+12614594+12623698(Top 89%)13843(Top 91%)13843(Top 1247%)
20M20.00 mi1.36 mi25158+7614554+4014554+4024118(Top 91%)13956(Top 92%)13956(Top 1257%)
21M21.00 mi1.00 mi25076+8214508+4614508+4622947(Top 86%)13405(Top 88%)13405(Top 1208%)
35K21.75 mi0.75 mi25019+5714471+3714471+3722980(Top 86%)13379(Top 88%)13379(Top 1205%)
23M23.00 mi1.25 mi24944+7514433+3814433+3823325(Top 88%)13544(Top 89%)13544(Top 1220%)
24M24.00 mi1.00 mi24855+8914386+4714386+4722527(Top 85%)13132(Top 87%)13132(Top 1183%)
40K24.85 mi0.85 mi24784+7114353+3314353+3321938(Top 82%)12801(Top 84%)12801(Top 1153%)
25.2M25.20 mi0.35 mi24742+4214329+2414329+2420720(Top 78%)12271(Top 81%)12271(Top 1105%)
Finish26.22 mi1.02 mi24679+6314301+2814301+2822220(Top 83%)12961(Top 85%)12961(Top 1168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

25809

Males

14863

M60-64

14863

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

25470

Males

14735

M60-64

14735

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

25809

Males

14863

M60-64

14863

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25308

Males

14627

M60-64

14627

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

24893

Males

14431

M60-64

14431

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

25166

Males

14532

M60-64

14532

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23698

Males

13843

M60-64

13843

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

24118

Males

13956

M60-64

13956

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22947

Males

13405

M60-64

13405

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22980

Males

13379

M60-64

13379

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23325

Males

13544

M60-64

13544

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22527

Males

13132

M60-64

13132

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21938

Males

12801

M60-64

12801

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20720

Males

12271

M60-64

12271

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22220

Males

12961

M60-64

12961

Passing Analysis

Category:
Athletes Passed
1430
Passed By
276
Net Change
+1154
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25833
5K → 10K21653+163#25833#25670
10K → 15K68132-64#25670#25734
15K → 20K15027+123#25734#25611
20K → Half313+28#25611#25583
Half → 25K10229+73#25583#25510
25K → 30K2771+276#25510#25234
30K → 20M848+76#25234#25158
20M → 21M886+82#25158#25076
21M → 35K603+57#25076#25019
35K → 23M772+75#25019#24944
23M → 24M901+89#24944#24855
24M → 40K765+71#24855#24784
40K → 25.2M431+42#24784#24742
25.2M → Finish685+63#24742#24679
TOTALS1430276+1154
📊

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