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BOSTON MARATHON 2023

Kenneth Rosen

Bib: 17599•M

MN

Masters
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0:00
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Age Group (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
30:34
Rank: #23016
Start → 5K
30:34 | 9:50/mi
10K· 6.21 mi
59:34
Rank: #22566 (+450)
5K → 10K
29:00 | 9:20/mi
15K· 9.32 mi
1:28:16
Rank: #22203 (+363)
10K → 15K
28:42 | 9:14/mi
20K· 12.43 mi
1:56:53
Rank: #21821 (+382)
15K → 20K
28:37 | 9:13/mi
Half· 13.11 mi
2:02:55
Rank: #21739 (+82)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:24:26
Rank: #21271 (+468)
Half → 25K
21:31 | 8:52/mi
30K· 18.64 mi
2:51:52
Rank: #20522 (+749)
25K → 30K
27:26 | 8:50/mi
20M
3:03:34
Rank: #20170 (+352)
30K → 20M
11:42 | 8:37/mi
21M
3:12:19
Rank: #19758 (+412)
20M → 21M
8:45 | 8:45/mi
35K· 21.75 mi
3:18:27
Rank: #19584 (+174)
21M → 35K
6:08 | 8:12/mi
23M
3:28:55
Rank: #19220 (+364)
35K → 23M
10:28 | 8:22/mi
24M
3:36:53
Rank: #18948 (+272)
23M → 24M
7:58 | 7:58/mi
40K· 24.85 mi
3:43:44
Rank: #18669 (+279)
24M → 40K
6:51 | 8:01/mi
25.2M
3:46:39
Rank: #18523 (+146)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:54:29
Rank: #18272 (+251)
25.2M → Finish
7:50 | 7:41/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.11 mi
Time2:02:55
Pace9:23 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:51:34
Pace8:31 /mi
📊Negative Split: 9.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0930:349:5030:34
9:50
-
10K
6.21 mi11:56:0959:349:3529:00
9:20
-0:30
15K
9.32 mi12:24:511:28:169:2828:42
9:14
-0:06
20K
12.43 mi12:53:281:56:539:2428:37
9:13
-0:01
Half
13.11 mi12:59:302:02:559:236:02
8:51
-0:22
25K
15.53 mi13:21:012:24:269:1821:31
8:52
+0:01
30K
18.64 mi13:48:272:51:529:1327:26
8:50
-0:02
20M
20.00 mi14:00:093:03:349:1111:42
8:37
-0:13
21M
21.00 mi14:08:543:12:199:098:45
8:45
+0:08
35K
21.75 mi14:15:023:18:279:076:08
8:12
-0:33
23M
23.00 mi14:25:303:28:559:0510:28
8:22
+0:10
24M
24.00 mi14:33:283:36:539:027:58
7:58
-0:24
40K
24.85 mi14:40:193:43:449:006:51
8:01
+0:03
25.2M
25.20 mi14:43:143:46:399:002:55
8:27
+0:26
Finish
26.22 mi14:51:043:54:298:577:50
7:41
-0:46

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:41 /mi

Average Pace

8:57 /mi

Slowest Pace

9:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

42:10

18% of race

Time at Steady Pace

1:15:26

32% of race

Time at Slower Pace

1:56:53

50% of race

Average Pace: 8:57 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:27:0930:349:5030:34
9:50
#23016
10K
6.21 mi11:56:0959:349:3529:00
9:20
#22566
15K
9.32 mi12:24:511:28:169:2828:42
9:14
#22203
20K
12.43 mi12:53:281:56:539:2428:37
9:13
#21821
Half
13.11 mi12:59:302:02:559:236:02
8:51
#21739
25K
15.53 mi13:21:012:24:269:1821:31
8:52
#21271
30K
18.64 mi13:48:272:51:529:1327:26
8:50
#20522
20M
20.00 mi14:00:093:03:349:1111:42
8:37
#20170
21M
21.00 mi14:08:543:12:199:098:45
8:45
#19758
35K
21.75 mi14:15:023:18:279:076:08
8:12
#19584
23M
23.00 mi14:25:303:28:559:0510:28
8:22
#19220
24M
24.00 mi14:33:283:36:539:027:58
7:58
#18948
40K
24.85 mi14:40:193:43:449:006:51
8:01
#18669
25.2M
25.20 mi14:43:143:46:399:002:55
8:27
#18523
Finish
26.22 mi14:51:043:54:298:577:50
7:41
#18272
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23016135941359421422(Top 80%)12939(Top 85%)12939(Top 910%)
10K6.21 mi3.10 mi22566+45013413+18113413+18122024(Top 83%)13171(Top 87%)13171(Top 926%)
15K9.32 mi3.11 mi22203+36313244+16913244+16921422(Top 80%)12939(Top 85%)12939(Top 910%)
20K12.43 mi3.11 mi21821+38213076+16813076+16820610(Top 77%)12574(Top 83%)12574(Top 884%)
Half13.11 mi0.68 mi21739+8213040+3613040+3619672(Top 74%)12157(Top 80%)12157(Top 855%)
25K15.53 mi2.42 mi21271+46812830+21012830+21018326(Top 69%)11561(Top 76%)11561(Top 813%)
30K18.64 mi3.11 mi20522+74912481+34912481+34916243(Top 61%)10587(Top 70%)10587(Top 745%)
20M20.00 mi1.36 mi20170+35212308+17312308+17314319(Top 54%)9703(Top 64%)9703(Top 682%)
21M21.00 mi1.00 mi19758+41212137+17112137+17111965(Top 45%)8582(Top 57%)8582(Top 604%)
35K21.75 mi0.75 mi19584+17412051+8612051+8613407(Top 50%)9182(Top 61%)9182(Top 646%)
23M23.00 mi1.25 mi19220+36411896+15511896+15512301(Top 46%)8606(Top 57%)8606(Top 605%)
24M24.00 mi1.00 mi18948+27211758+13811758+13811008(Top 41%)7912(Top 52%)7912(Top 556%)
40K24.85 mi0.85 mi18669+27911629+12911629+12910134(Top 38%)7415(Top 49%)7415(Top 521%)
25.2M25.20 mi0.35 mi18523+14611563+6611563+669267(Top 35%)6927(Top 46%)6927(Top 487%)
Finish26.22 mi1.02 mi18272+25111444+11911444+1199895(Top 37%)7240(Top 48%)7240(Top 509%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21422

Males

12939

M55-59

12939

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22024

Males

13171

M55-59

13171

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21422

Males

12939

M55-59

12939

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20610

Males

12574

M55-59

12574

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

19672

Males

12157

M55-59

12157

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

18326

Males

11561

M55-59

11561

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16243

Males

10587

M55-59

10587

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14319

Males

9703

M55-59

9703

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11965

Males

8582

M55-59

8582

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13407

Males

9182

M55-59

9182

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12301

Males

8606

M55-59

8606

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11008

Males

7912

M55-59

7912

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10134

Males

7415

M55-59

7415

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9267

Males

6927

M55-59

6927

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9895

Males

7240

M55-59

7240

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4876
Passed By
132
Net Change
+4744
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23016
5K → 10K52575+450#23016#22566
10K → 15K39229+363#22566#22203
15K → 20K40018+382#22203#21821
20K → Half864+82#21821#21739
Half → 25K4691+468#21739#21271
25K → 30K7490+749#21271#20522
30K → 20M3531+352#20522#20170
20M → 21M4120+412#20170#19758
21M → 35K1740+174#19758#19584
35K → 23M3651+364#19584#19220
23M → 24M2720+272#19220#18948
24M → 40K2790+279#18948#18669
40K → 25.2M1460+146#18669#18523
25.2M → Finish2543+251#18523#18272
TOTALS4876132+4744
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing