Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2014) View Advanced Player Stats
Osamu Nakayama (Rochester, MN)
Male 		4.0 C
12/31/2022
Estimated Dynamic Rating 3.5996
6/23/2024
Projected Year End Rating ------
----------
4.0 Rating Meter
Rating Meter
3.5001 - 4.0000
Recent Match History Current Rating History
2014 Overall Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 40+ 4.0 14 9 5 0 64.3 30 19 11 63.3 264 143 121 54.2 0
Adult Other 4.0 2 1 1 0 50.0 5 2 3 40.0 38 17 21 44.7 0
Mixed 18+ 7.0 10 7 3 0 70.0 23 16 7 69.6 170 105 65 61.8 0
Mixed 18+ 8.0 3 0 3 0 0.0 8 2 6 25.0 61 28 33 45.9 0
Total 29 17 12 0 58.6 66 39 27 59.1 533 293 240 55.0 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
12/07/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 D2 Yasuhiro Ikeda Caesar Torres

Chul-Ho Kim 		W 6-3
6-3		 ----- -----
11/23/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 S1 Arthur Smet W 6-1
6-3		 ----- -----
11/16/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 S2 Dave Pewowaruk W 6-4
6-3		 ----- -----
11/09/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 D1 Yasuhiro Ikeda Brian Davies

Stephen Grinnell 		L 6-7
6-4
1-0		 ----- -----
11/02/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 S1 Dave Pewowaruk L 6-3
6-3		 ----- -----
10/19/2014 Adult Other
4.0		 B Levy
Northern		 D1 bruce levy Brian Lahr

Caesar Torres 		W 6-3
3-6
1-0		 ----- -----
10/12/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 S1 Arthur Smet L 6-4
6-4		 ----- -----
10/05/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 S1 Dave Pewowaruk W 6-2
3-6
1-0		 ----- -----
10/01/2014 Adult Other
4.0		 B Levy
Northern		 D1 Nathan Perry Tuan Truong

Dat Truong 		L 6-3
6-4		 ----- -----
09/07/2014 Mixed 18+
7.0
Sectionals		 Nakayama (RAC)
Northern		 D2 Mie Saiki Steve Bruell

Megan Murray-Bennett 		L 6-7
6-3
1-0		 ----- -----
09/07/2014 Mixed 18+
7.0
Sectionals		 Nakayama (RAC)
Northern		 D1 Sachie Welch Aaron Johnson

Addie Ormsbee 		L 6-3
6-2		 ----- -----
09/06/2014 Mixed 18+
7.0
Sectionals		 Nakayama (RAC)
Northern		 D3 Mie Saiki Douglas Morris

Michelle Morris 		W 6-1
6-2		 ----- -----
09/05/2014 Mixed 18+
7.0
Sectionals		 Nakayama (RAC)
Northern		 D1 Sachie Welch Ann Hawkins

tom johnson 		W 1-6
6-2
1-0		 ----- -----
08/15/2014 Adult 40+
4.0
Sectionals		 Witter, Lee (RAC)
Northern		 S1 David Sokolowski L 6-2
6-2		 ----- -----
04/13/2014 Mixed 18+
7.0		 Nakayama (RAC)
Northern		 D1 Mie Saiki Michele Hanson

Andreas Regal 		W 6-1
7-5		 ----- -----
03/09/2014 Mixed 18+
7.0		 Nakayama (RAC)
Northern		 D3 Mie Saiki Ruth Hoel

Robert Hoel 		W 6-2
6-2		 ----- -----
03/02/2014 Mixed 18+
8.0		 Mullenmeister, Mike (RAC)
Northern		 D1 Ruth Church Kelsey Jenson

Stephen Grinnell 		L 6-3
4-6
1-0		 ----- -----
02/25/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 D3 Kennedy Cheruiyot Eric Tostenson

Steven Joswiak 		W 6-2
6-4		 ----- -----
02/23/2014 Mixed 18+
7.0		 Nakayama (RAC)
Northern		 D3 Mie Saiki Chris Bushaw

Curt Gilbertson 		W 6-1
6-3		 ----- -----
02/18/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 D3 Brett Joyce Dave Pewowaruk

William Meadows 		L 6-3
6-3		 ----- -----
02/11/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 D2 Kennedy Cheruiyot Steven Joswiak

Eric Tostenson 		W 6-4
7-6		 ----- -----
02/10/2014 Mixed 18+
7.0		 Nakayama (RAC)
Northern		 D2 Sachie Welch Chris Bushaw

Santhi Swaroop Vege 		W 6-2
6-3		 ----- -----
02/09/2014 Mixed 18+
8.0		 Mullenmeister, Mike (RAC)
Northern		 D1 Ruth Church Paula Harms

Brian Davies 		L 6-4
2-6
1-0		 ----- -----
02/09/2014 Mixed 18+
7.0		 Nakayama (RAC)
Northern		 D2 Sachie Welch Susan Krecke

Gordon Harms 		L 6-3
2-6
1-0		 ----- -----
01/28/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 S1 Dave Pewowaruk W 6-2
6-4		 ----- -----
01/26/2014 Mixed 18+
8.0		 Mullenmeister, Mike (RAC)
Northern		 D1 Ruth Church Mike Lipinski

Patty Stupca 		L 6-3
7-6		 ----- -----
01/21/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 S1 Guillermo Lomanto W 7-6
6-3		 ----- -----
01/14/2014 Adult 40+
4.0		 Witter, Lee (RAC)
Northern		 D1 Brian Davies Stephen Grinnell

Eric Tostenson 		W 6-3
6-1		 ----- -----
01/12/2014 Mixed 18+
7.0		 Nakayama (RAC)
Northern		 D3 Sachie Welch Marie Knutson

Leif Knutson 		W 6-0
6-1		 ----- -----
12/07/2014 D2 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
Yasuhiro Ikeda () 6-3
6-3		 Caesar Torres
Chul-Ho Kim
Match: ----- Rating: -----
11/23/2014 S1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
6-1
6-3		 Arthur Smet
Match: ----- Rating: -----
11/16/2014 S2 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
6-4
6-3		 Dave Pewowaruk
Match: ----- Rating: -----
11/09/2014 D1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 L Grinnell/Tostenson (RTC)
Northern
Yasuhiro Ikeda () 6-7
6-4
1-0		 Brian Davies
Stephen Grinnell
Match: ----- Rating: -----
11/02/2014 S1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 L Grinnell/Tostenson (RTC)
Northern
6-3
6-3		 Dave Pewowaruk
Match: ----- Rating: -----
10/19/2014 D1 Adult Other
4.0
B Levy
Northern		 W Dropshots
Northern
bruce levy () 6-3
3-6
1-0		 Brian Lahr
Caesar Torres
Match: ----- Rating: -----
10/12/2014 S1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 L Grinnell/Tostenson (RTC)
Northern
6-4
6-4		 Arthur Smet
Match: ----- Rating: -----
10/05/2014 S1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
6-2
3-6
1-0		 Dave Pewowaruk
Match: ----- Rating: -----
10/01/2014 D1 Adult Other
4.0
B Levy
Northern		 L Truong
Northern
Nathan Perry () 6-3
6-4		 Tuan Truong
Dat Truong
Match: ----- Rating: -----
09/07/2014 D2 Mixed 18+
7.0
Sectionals
Nakayama (RAC)
Northern		 L Miller 7.0 MX W
Northern
Mie Saiki 6-7
6-3
1-0		 Steve Bruell
Megan Murray-Bennett
Match: ----- Rating: -----
09/07/2014 D1 Mixed 18+
7.0
Sectionals
Nakayama (RAC)
Northern		 L Foley Mixed - Summer
Northern
Sachie Welch 6-3
6-2		 Aaron Johnson
Addie Ormsbee
Match: ----- Rating: -----
09/06/2014 D3 Mixed 18+
7.0
Sectionals
Nakayama (RAC)
Northern		 W Nadal There (Simon)
Northern
Mie Saiki 6-1
6-2		 Douglas Morris
Michelle Morris
Match: ----- Rating: -----
09/05/2014 D1 Mixed 18+
7.0
Sectionals
Nakayama (RAC)
Northern		 W Ewen - Golden Set
Northern
Sachie Welch 1-6
6-2
1-0		 Ann Hawkins
tom johnson
Match: ----- Rating: -----
08/15/2014 S1 Adult 40+
4.0
Sectionals
Witter, Lee (RAC)
Northern		 L Voges - Old School (LTF-WBL)
Northern
6-2
6-2		 David Sokolowski
Match: ----- Rating: -----
04/13/2014 D1 Mixed 18+
7.0
Nakayama (RAC)
Northern		 W Jenson/Hazelton (RTC)
Northern
Mie Saiki 6-1
7-5		 Michele Hanson
Andreas Regal
Match: ----- Rating: -----
03/09/2014 D3 Mixed 18+
7.0
Nakayama (RAC)
Northern		 W Jenson/Hazelton (RTC)
Northern
Mie Saiki 6-2
6-2		 Ruth Hoel
Robert Hoel
Match: ----- Rating: -----
03/02/2014 D1 Mixed 18+
8.0
Mullenmeister, Mike (RAC)
Northern		 L Jenson, Kelsey (RTC)
Northern
Ruth Church 6-3
4-6
1-0		 Kelsey Jenson
Stephen Grinnell
Match: ----- Rating: -----
02/25/2014 D3 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
Kennedy Cheruiyot () 6-2
6-4		 Eric Tostenson
Steven Joswiak
Match: ----- Rating: -----
02/23/2014 D3 Mixed 18+
7.0
Nakayama (RAC)
Northern		 W Bushaw, Chris (RAC)
Northern
Mie Saiki 6-1
6-3		 Chris Bushaw
Curt Gilbertson
Match: ----- Rating: -----
02/18/2014 D3 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 L Grinnell/Tostenson (RTC)
Northern
Brett Joyce () 6-3
6-3		 Dave Pewowaruk
William Meadows
Match: ----- Rating: -----
02/11/2014 D2 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
Kennedy Cheruiyot () 6-4
7-6		 Steven Joswiak
Eric Tostenson
Match: ----- Rating: -----
02/10/2014 D2 Mixed 18+
7.0
Nakayama (RAC)
Northern		 W Bushaw, Chris (RAC)
Northern
Sachie Welch 6-2
6-3		 Chris Bushaw
Santhi Swaroop Vege
Match: ----- Rating: -----
02/09/2014 D1 Mixed 18+
8.0
Mullenmeister, Mike (RAC)
Northern		 L Oscar & the Grouches (RAC)
Northern
Ruth Church 6-4
2-6
1-0		 Paula Harms
Brian Davies
Match: ----- Rating: -----
02/09/2014 D2 Mixed 18+
7.0
Nakayama (RAC)
Northern		 L Davies, Brian (RAC)
Northern
Sachie Welch 6-3
2-6
1-0		 Susan Krecke
Gordon Harms
Match: ----- Rating: -----
01/28/2014 S1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
6-2
6-4		 Dave Pewowaruk
Match: ----- Rating: -----
01/26/2014 D1 Mixed 18+
8.0
Mullenmeister, Mike (RAC)
Northern		 L Rust, Kevin (RAC)
Northern
Ruth Church 6-3
7-6		 Mike Lipinski
Patty Stupca
Match: ----- Rating: -----
01/21/2014 S1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
7-6
6-3		 Guillermo Lomanto
Match: ----- Rating: -----
01/14/2014 D1 Adult 40+
4.0
Witter, Lee (RAC)
Northern		 W Grinnell/Tostenson (RTC)
Northern
Brian Davies () 6-3
6-1		 Stephen Grinnell
Eric Tostenson
Match: ----- Rating: -----
01/12/2014 D3 Mixed 18+
7.0
Nakayama (RAC)
Northern		 W Jenson/Hazelton (RTC)
Northern
Sachie Welch 6-0
6-1		 Marie Knutson
Leif Knutson
Match: ----- Rating: -----
Glossary
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Rating Dynamic rating after completed match.
NC Match not yet calculated into rating.
S Self rated or unrated player involved in match so no match rating calculated for current player.
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