Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2024) View Advanced Player Stats
Christine Costamagna (San Rafael, CA)
Female 		4.5 C
12/31/2023
Estimated Dynamic Rating 4.4620
5/23/2024
Projected Year End Rating ------
----------
4.5 Rating Meter
Rating Meter
4.0001 - 4.5000
Recent Match History Current Rating History
2024 Overall Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 4.5 4 4 0 0 100.0 8 8 0 100.0 67 49 18 73.1 0
Adult 40+ 0.0 3 3 0 0 100.0 6 6 0 100.0 47 36 11 76.6 0
Adult 55+ 8.0 3 3 0 0 100.0 8 6 2 75.0 57 34 23 59.6 0
Adult 55+ 9.0 2 2 0 0 100.0 5 4 1 80.0 31 21 10 67.7 0
Combo 8.5 2 1 1 0 50.0 4 2 2 50.0 36 20 16 55.6 0
Mixed 18+ 8.0 2 1 1 0 50.0 5 3 2 60.0 37 23 14 62.2 0
Mixed 18+ 9.0 3 2 1 0 66.7 6 4 2 66.7 67 34 33 50.7 1
Total 19 16 3 0 84.2 42 33 9 78.6 342 217 125 63.5 1
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
05/16/2024 Adult 18+
4.5		 MARIN TC 18AW4.5A
No California		 D2 Alexis Kirkland
(4.46) 		Katherine Parkin
(3.90)
Betty Lee
(4.05) 		W 6-1
6-2		 4.44 4.46
05/02/2024 Adult 18+
4.5		 MARIN TC 18AW4.5A
No California		 D1 Kimberly Borah-Schulist
(4.37) 		Erin Feely
(4.20)
Liz Hartmann
(4.25) 		W 6-1
6-1		 4.64 4.50
04/30/2024 Adult 55+
8.0		 HARBOR PT 55AW8.0A
No California		 D2 Theresia Treadway
(3.32) 		Francie Burkhard
(3.68)
Anne Sullivan
(3.78) 		W 4-6
7-6
1-0		 4.30 4.44
04/28/2024 Adult 18+
4.5		 MILLS COLLEGE 18AW4.5B
No California		 D1 Beth Workeneh
(4.34) 		Clarissa Binkley
(4.26)
Heather Ruegg
(4.22) 		W 6-2
7-6		 4.43 4.47
04/28/2024 Adult 55+
8.0		 HARBOR PT 55AW8.0A
No California		 D3 Debra Andelin
(3.61) 		Carol Lee
(3.25)
Sheri Yu
(3.45) 		W 6-1
6-2		 4.38 4.46
04/27/2024 Tournament
W55d		 2024 Bay Area Senior Games R1 Marilyn Morrell-Kristal
(4.12) 		Elizabeth Cowley
(3.84)
Becky Kogan
(3.53) 		W 6-2
6-3		 4.24 -----
04/26/2024 Tournament
W55d		 2024 Bay Area Senior Games R2 Marilyn Morrell-Kristal
(4.12) 		Stacey Word
(3.56)
Tracy Dennis
(3.61) 		W 6-2
6-0		 4.46 -----
04/21/2024 Adult 18+
4.5		 MARIN TC 18AW4.5A
No California		 D2 Marilyn Morrell-Kristal
(4.14) 		Katherine Parkin
(3.89)
Polly Paulsen
(3.74) 		W 6-3
6-2		 4.30 4.46
04/06/2024 Adult 55+
9.0		 HARBOR PT 55AW9.0A
No California		 D3 Marilyn Morrell-Kristal
(4.14) 		Marinette Magallanes
(-----)
Leslie Kues
(-----) 		W 6-1
6-3		 S 4.49
03/27/2024 Adult 55+
9.0		 HARBOR PT 55AW9.0A
No California		 D3 Freda O'Brien
(3.97) 		Karla Lovett
(4.09)
Sueyin Wong
(4.17) 		W 6-0
2-6
1-0		 4.48 4.49
03/24/2024 Adult 55+
8.0		 HARBOR PT 55AW8.0A
No California		 D1 Debra Andelin
(3.54) 		Claudia Vlasak
(3.96)
Rita Williams
(3.78) 		W 3-6
6-2
1-0		 4.40 4.48
03/24/2024 Mixed 18+
8.0		 MARIN CC 18MX8.0A
No California		 D2 James Busterud
(3.48) 		Fan Zhang
(3.91)
Elizabeth Whipple
(3.68) 		L 2-6
6-4
1-0		 4.33 4.47
03/20/2024 Mixed 18+
8.0		 MARIN CC 18MX8.0A
No California		 D2 Michael Graziano
(3.59) 		Kenneth Hoppe
(3.92)
Martina Hamamjian
(3.57) 		W 6-0
7-5		 4.46 4.50
03/16/2024 Mixed 18+
9.0		 HARBOR PT 18MX9.0A
No California		 D1 Daniel Mathis
(4.13) 		Michael Damiani
(4.50)
Alison St Sure
(4.34) 		L 7-5
6-2		 4.43 4.49
03/12/2024 Adult 40+ HARBOR PT 40AW4.5A
No California		 D1 Michelle Kohm
(4.49) 		Kristen Nicita
(4.63)
Elizabeth Sordyl
(4.25) 		W 6-4
6-3		 S 4.50
02/27/2024 Mixed 18+
9.0		 HARBOR PT 18MX9.0A
No California		 D3 Sacha Drazien
(4.12) 		Alison Revell
(4.68)
Edward Su
(3.88) 		W 7-5
6-4		 4.57 4.50
02/25/2024 Adult 40+ HARBOR PT 40AW4.5A
No California		 D3 Kristin Morrell
(4.60) 		Beth McCarthy
(4.08)
Jennifer Hatch
(4.08) 		W 6-0
6-1		 4.51 4.50
02/24/2024 Mixed 18+
9.0		 HARBOR PT 18MX9.0A
No California		 D2 Onno Koelman
(4.11) 		Kimberly Borah-Schulist
(4.39)
Chris Trepte
(4.42) 		W 7-6
7-5		 4.66 4.51
01/27/2024 Mixed 18+
9.0		 HARBOR PT 18MX9.0A
No California		 D3 Robert Blechman
(-----) 		Default W 6-0
6-0		 ----- -----
01/26/2024 Combo
8.5
Sectionals		 MARIN TC CW8.5A
No California		 D2 Jennifer Mills
(4.32) 		Stephanie Stieber
(4.48)
Chandra Thomas
(4.30) 		L 6-4
6-4		 4.36 -----
01/26/2024 Combo
8.5
Sectionals		 MARIN TC CW8.5A
No California		 D2 Jennifer Mills
(4.32) 		Monique Honeycutt
(3.82)
Maria Castillo
(3.77) 		W 6-3
6-1		 4.31 -----
01/18/2024 Adult 40+ HARBOR PT 40AW4.5A
No California		 D2 Alexis Kirkland
(4.47) 		Angela Downs
(4.03)
Cecilia Arnold
(4.25) 		W 6-1
6-2		 4.49 4.49
05/16/2024 D2 Adult 18+
4.5
MARIN TC 18AW4.5A
No California		 W SCOTT VALLEY 18AW4.5A
No California
Alexis Kirkland (4.46) 6-1
6-2		 Katherine Parkin (3.90)
Betty Lee (4.05)
Match: 4.44 Rating: 4.46
05/02/2024 D1 Adult 18+
4.5
MARIN TC 18AW4.5A
No California		 W MARIN TC 18AW4.5B
No California
Kimberly Borah-Schulist (4.37) 6-1
6-1		 Erin Feely (4.20)
Liz Hartmann (4.25)
Match: 4.64 Rating: 4.50
04/30/2024 D2 Adult 55+
8.0
HARBOR PT 55AW8.0A
No California		 W MARIN TC 55AW8.0A
No California
Theresia Treadway (3.32) 4-6
7-6
1-0		 Francie Burkhard (3.68)
Anne Sullivan (3.78)
Match: 4.30 Rating: 4.44
04/28/2024 D1 Adult 18+
4.5
MILLS COLLEGE 18AW4.5B
No California		 W BERKELEY TC 18AW4.5A
No California
Beth Workeneh (4.34) 6-2
7-6		 Clarissa Binkley (4.26)
Heather Ruegg (4.22)
Match: 4.43 Rating: 4.47
04/28/2024 D3 Adult 55+
8.0
HARBOR PT 55AW8.0A
No California		 W MT TAM RC 55AW8.0A
No California
Debra Andelin (3.61) 6-1
6-2		 Carol Lee (3.25)
Sheri Yu (3.45)
Match: 4.38 Rating: 4.46
2024 Bay Area Senior Games
04/27/2024 R1 Tournament
W55d
W
Marilyn Morrell-Kristal (4.12) 6-2
6-3		 Elizabeth Cowley (3.84)
Becky Kogan (3.53)
Match: 4.24 Rating: -----
2024 Bay Area Senior Games
04/26/2024 R2 Tournament
W55d
W
Marilyn Morrell-Kristal (4.12) 6-2
6-0		 Stacey Word (3.56)
Tracy Dennis (3.61)
Match: 4.46 Rating: -----
04/21/2024 D2 Adult 18+
4.5
MARIN TC 18AW4.5A
No California		 W SCOTT VALLEY 18AW4.5A
No California
Marilyn Morrell-Kristal (4.14) 6-3
6-2		 Katherine Parkin (3.89)
Polly Paulsen (3.74)
Match: 4.30 Rating: 4.46
04/06/2024 D3 Adult 55+
9.0
HARBOR PT 55AW9.0A
No California		 W BAY CLUB SF TENNIS 55AW9.0A
No California
Marilyn Morrell-Kristal (4.14) 6-1
6-3		 Marinette Magallanes (-----)
Leslie Kues (-----)
Match: S Rating: 4.49
03/27/2024 D3 Adult 55+
9.0
HARBOR PT 55AW9.0A
No California		 W BAY CLUB SF TENNIS 55AW9.0A
No California
Freda O'Brien (3.97) 6-0
2-6
1-0		 Karla Lovett (4.09)
Sueyin Wong (4.17)
Match: 4.48 Rating: 4.49
03/24/2024 D1 Adult 55+
8.0
HARBOR PT 55AW8.0A
No California		 W BOYLE PK 55AW8.0A
No California
Debra Andelin (3.54) 3-6
6-2
1-0		 Claudia Vlasak (3.96)
Rita Williams (3.78)
Match: 4.40 Rating: 4.48
03/24/2024 D2 Mixed 18+
8.0
MARIN CC 18MX8.0A
No California		 L BELVEDERE TC 18MX8.0A
No California
James Busterud (3.48) 2-6
6-4
1-0		 Fan Zhang (3.91)
Elizabeth Whipple (3.68)
Match: 4.33 Rating: 4.47
03/20/2024 D2 Mixed 18+
8.0
MARIN CC 18MX8.0A
No California		 W ROLLING HILLS 18MX8.0A
No California
Michael Graziano (3.59) 6-0
7-5		 Kenneth Hoppe (3.92)
Martina Hamamjian (3.57)
Match: 4.46 Rating: 4.50
03/16/2024 D1 Mixed 18+
9.0
HARBOR PT 18MX9.0A
No California		 L RAFAEL RC 18MX9.0A
No California
Daniel Mathis (4.13) 7-5
6-2		 Michael Damiani (4.50)
Alison St Sure (4.34)
Match: 4.43 Rating: 4.49
03/12/2024 D1 Adult 40+
HARBOR PT 40AW4.5A
No California		 W SCOTT VALLEY 40AW4.5A
No California
Michelle Kohm (4.49) 6-4
6-3		 Kristen Nicita (4.63)
Elizabeth Sordyl (4.25)
Match: S Rating: 4.50
02/27/2024 D3 Mixed 18+
9.0
HARBOR PT 18MX9.0A
No California		 W MT TAM RC 18MX9.0A
No California
Sacha Drazien (4.12) 7-5
6-4		 Alison Revell (4.68)
Edward Su (3.88)
Match: 4.57 Rating: 4.50
02/25/2024 D3 Adult 40+
HARBOR PT 40AW4.5A
No California		 W RAFAEL RC 40AW4.5A
No California
Kristin Morrell (4.60) 6-0
6-1		 Beth McCarthy (4.08)
Jennifer Hatch (4.08)
Match: 4.51 Rating: 4.50
02/24/2024 D2 Mixed 18+
9.0
HARBOR PT 18MX9.0A
No California		 W MARIN TC 18MX9.0A
No California
Onno Koelman (4.11) 7-6
7-5		 Kimberly Borah-Schulist (4.39)
Chris Trepte (4.42)
Match: 4.66 Rating: 4.51
01/27/2024 D3 Mixed 18+
9.0
HARBOR PT 18MX9.0A
No California		 W RAFAEL RC 18MX9.0A
No California
Robert Blechman (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
01/26/2024 D2 Combo
8.5
Sectionals
MARIN TC CW8.5A
No California		 L WALNUT CREEK RC/Walnut Creek TC CW8.5A
No California
Jennifer Mills (4.32) 6-4
6-4		 Stephanie Stieber (4.48)
Chandra Thomas (4.30)
Match: 4.36 Rating: -----
01/26/2024 D2 Combo
8.5
Sectionals
MARIN TC CW8.5A
No California		 W SEASCAPE SC CW8.5A
No California
Jennifer Mills (4.32) 6-3
6-1		 Monique Honeycutt (3.82)
Maria Castillo (3.77)
Match: 4.31 Rating: -----
01/18/2024 D2 Adult 40+
HARBOR PT 40AW4.5A
No California		 W RAFAEL RC 40AW4.5A
No California
Alexis Kirkland (4.47) 6-1
6-2		 Angela Downs (4.03)
Cecilia Arnold (4.25)
Match: 4.49 Rating: 4.49
Glossary
Match Player rating for individual match.
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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