Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2018) View Advanced Player Stats
Cathy O'Brien (Chandler, AZ)
Female 		4.0 C
12/31/2023
Estimated Dynamic Rating 3.8350
5/15/2024
Projected Year End Rating ------
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4.0 Rating Meter
Rating Meter
3.5001 - 4.0000
Recent Match History Current Rating History
2018 Overall Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 4.0 17 10 7 0 58.8 40 24 16 60.0 332 181 151 54.5 0
Adult 40+ 4.0 13 11 2 0 84.6 29 22 7 75.9 247 147 100 59.5 0
Adult Other 8.5 3 3 0 0 100.0 7 6 1 85.7 54 32 22 59.3 0
Total 33 24 9 0 72.7 76 52 24 68.4 633 360 273 56.9 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
12/11/2018 Adult 18+
4.0		 4.0 CTC Colombero 18eaF
Southwest		 D2 Mahealani Wing
(3.90) 		Lindsey Herzog
(3.20)
Ashley Portwood
(3.57) 		W 7-6
6-4		 3.33 3.58
12/05/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D2 Mahealani Wing
(3.86) 		Kristy Miller
(3.76)
becky williams
(3.86) 		W 4-6
7-6
1-0		 3.72 3.65
11/28/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D1 Mahealani Wing
(3.75) 		Amy Foley
(3.93)
Mara Ferrari
(3.91) 		W 7-5
6-2		 4.02 3.69
11/27/2018 Adult 18+
4.0		 4.0 CTC Colombero 18eaF
Southwest		 D2 Virginia Van Der Geest
(3.63) 		Laura Rockowitz
(3.42)
Anne Nichols
(3.47) 		W 6-3
6-2		 3.66 3.60
11/13/2018 Adult 18+
4.0		 4.0 CTC Colombero 18eaF
Southwest		 D3 Marla DiSarno
(3.68) 		Nancy Hovren
(3.73)
Katie Campbell
(3.48) 		L 6-4
4-6
1-0		 3.54 3.58
11/07/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D2 Deb Dendy
(3.61) 		Stacey Muto
(3.46)
Khristina Gerads
(3.21) 		W 6-3
6-4		 3.49 3.60
11/06/2018 Adult 18+
4.0		 4.0 CTC Colombero 18eaF
Southwest		 D2 Gina Erickson
(3.68) 		Jill Nelson
(3.52)
Kathleen Mays
(3.47) 		W 7-5
6-4		 S 3.62
10/24/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D3 Denice Colombero
(3.52) 		Mina Coker
(3.50)
Ranae Remington
(3.49) 		L 7-5
6-3		 3.43 3.62
10/10/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D1 Mahealani Wing
(3.84) 		becky williams
(3.71)
Elaine Solomon
(3.84) 		L 6-3
6-1		 3.42 3.64
10/03/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D1 Mahealani Wing
(3.85) 		Ann Watts
(3.79)
Mara Ferrari
(3.73) 		W 5-7
6-3
1-0		 3.74 3.71
10/02/2018 Adult 18+
4.0		 4.0 CTC Colombero 18eaF
Southwest		 D1 Mahealani Wing
(3.82) 		Teresa Beale
(3.47)
Anne Parsons
(3.55) 		W 6-2
6-1		 3.79 3.72
09/27/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D1 Mahealani Wing
(3.81) 		Stacey Muto
(3.33)
Khristina Gerads
(3.23) 		W 6-1
6-1		 3.68 3.70
09/26/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D1 Mahealani Wing
(3.84) 		Kathy Krezel
(3.59)
Kareth Snow
(3.62) 		W 5-7
6-3
1-0		 3.59 3.68
09/18/2018 Adult 18+
4.0		 4.0 CTC Colombero 18eaF
Southwest		 S2 Kristin Stoddard
(3.84) 		L 6-2
6-3		 3.60 3.69
09/12/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D1 Carla Sulka
(3.63) 		Carolyn Obrien
(3.55)
Maryellen O'Brien
(3.54) 		W 6-1
7-5		 3.81 3.74
09/05/2018 Adult 40+
4.0		 4.0 CTC Wing 40F
Southwest		 D2 Mahealani Wing
(3.88) 		Mina Coker
(3.57)
Lynette Larsen
(3.58) 		W 6-1
6-4		 3.72 3.72
09/04/2018 Adult 18+
4.0		 4.0 CTC Colombero 18eaF
Southwest		 S2 Deralyn Woodbury
(3.65) 		W 6-3
6-4		 3.79 3.72
07/17/2018 Adult Other
8.5		 8.5 PTC Fitzpatrick Tue
Southwest		 D2 Carmen Walker
(3.80) 		Phyllis Carbonaro
(3.37)
Leah Carbonaro
(3.59) 		W 0-6
6-4
1-0		 3.30 -----
06/26/2018 Adult Other
8.5		 8.5 PTC Fitzpatrick Tue
Southwest		 D2 Kristin Stoddard
(3.86) 		Gabrielle Blawn
(3.64)
Anne Parsons
(3.64) 		W 6-4
6-2		 3.72 -----
06/05/2018 Adult Other
8.5		 8.5 PTC Fitzpatrick Tue
Southwest		 D2 Janice Golden
(-----) 		Cheri Umlauf
(3.55)
Valerie Foley
(3.12) 		W 7-5
6-1		 S -----
05/01/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D1 Catherine Pearson
(3.55) 		Valerie Schneider
(3.67)
Sheila Wood
(3.70) 		L 6-2
5-7
1-0		 3.70 3.69
04/24/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D1 Carla Sulka
(3.61) 		Maria Keller
(3.72)
Jill Heywood
(3.84) 		W 6-2
2-4		 3.89 3.73
04/17/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D2 Carla Sulka
(3.61) 		Gina Erickson
(3.81)
Christianne Ritchey
(3.88) 		L 6-1
7-5		 3.66 3.67
04/10/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D1 Chien Hue Edwards
(3.62) 		Maryellen O'Brien
(3.43)
Alison Hall
(3.36) 		W 6-1
4-6
1-0		 3.54 3.66
04/04/2018 Adult 40+
4.0		 4.0 PTC Ferrari - W40
Southwest		 D1 Carmen Walker
(3.88) 		Emily Van Niel
(3.31)
toni ohara
(3.58) 		W 6-1
6-4		 3.60 3.68
04/03/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D3 Carla Sulka
(3.61) 		Kristy Miller
(3.54)
Camilla Harrison
(3.80) 		L 6-4
3-6
1-0		 3.73 3.70
03/27/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D1 Carla Sulka
(3.59) 		Anne Parsons
(3.58)
Anne Nichols
(3.64) 		W 6-2
6-3		 3.90 3.73
03/25/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D2 Carla Sulka
(3.60) 		Debra Riehm
(3.77)
Lisa Bargery
(3.46) 		L 3-6
7-5
1-0		 3.65 3.67
03/21/2018 Adult 40+
4.0		 4.0 PTC Ferrari - W40
Southwest		 D1 Carmen Walker
(3.83) 		Maryellen O'Brien
(3.52)
Anne Klima
(3.16) 		W 6-1
6-1		 3.68 3.67
03/20/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D2 Chien Hue Edwards
(3.63) 		Kathryn Brasfield
(3.45)
Becky Flander
(3.76) 		W 7-5
6-4		 3.73 3.68
03/14/2018 Adult 40+
4.0		 4.0 PTC Ferrari - W40
Southwest		 D3 Zette Germany
(3.61) 		May Scheuer
(3.73)
Kathy Abraham
(3.66) 		W 7-5
6-4		 3.81 3.69
02/13/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D1 Heidi Gottschalk
(3.56) 		Carolyn Obrien
(3.53)
Maryellen O'Brien
(3.54) 		W 7-5
6-4		 3.67 3.65
02/06/2018 Adult 18+
4.0		 4.0 PTC Sulka/Edwards - W18TuE
Southwest		 D3 Carla Sulka
(3.56) 		Katherine Baker
(3.77)
Christine O'Hayre-Runnels
(3.53) 		L 5-7
6-4
1-0		 3.66 3.65
12/11/2018 D2 Adult 18+
4.0
4.0 CTC Colombero 18eaF
Southwest		 W 4.0 SRP Peebles/Stussie 18eaF
Southwest
Mahealani Wing (3.90) 7-6
6-4		 Lindsey Herzog (3.20)
Ashley Portwood (3.57)
Match: 3.33 Rating: 3.58
12/05/2018 D2 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 Pho Baker 40F
Southwest
Mahealani Wing (3.86) 4-6
7-6
1-0		 Kristy Miller (3.76)
becky williams (3.86)
Match: 3.72 Rating: 3.65
11/28/2018 D1 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 PTC Ferrari 40F
Southwest
Mahealani Wing (3.75) 7-5
6-2		 Amy Foley (3.93)
Mara Ferrari (3.91)
Match: 4.02 Rating: 3.69
11/27/2018 D2 Adult 18+
4.0
4.0 CTC Colombero 18eaF
Southwest		 W 4.0 CTC Nichols/Phillips 18eaF
Southwest
Virginia Van Der Geest (3.63) 6-3
6-2		 Laura Rockowitz (3.42)
Anne Nichols (3.47)
Match: 3.66 Rating: 3.60
11/13/2018 D3 Adult 18+
4.0
4.0 CTC Colombero 18eaF
Southwest		 L 4.0 DCVill Brasfield 18eaF
Southwest
Marla DiSarno (3.68) 6-4
4-6
1-0		 Nancy Hovren (3.73)
Katie Campbell (3.48)
Match: 3.54 Rating: 3.58
11/07/2018 D2 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 Stonegate Muto 40F
Southwest
Deb Dendy (3.61) 6-3
6-4		 Stacey Muto (3.46)
Khristina Gerads (3.21)
Match: 3.49 Rating: 3.60
11/06/2018 D2 Adult 18+
4.0
4.0 CTC Colombero 18eaF
Southwest		 W 4.0 MTC/GA Keller 18eaF
Southwest
Gina Erickson (3.68) 7-5
6-4		 Jill Nelson (3.52)
Kathleen Mays (3.47)
Match: S Rating: 3.62
10/24/2018 D3 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 L 4.0 PTC Abrams/Stafin-Lewis 40F
Southwest
Denice Colombero (3.52) 7-5
6-3		 Mina Coker (3.50)
Ranae Remington (3.49)
Match: 3.43 Rating: 3.62
10/10/2018 D1 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 L 4.0 Pho Baker 40F
Southwest
Mahealani Wing (3.84) 6-3
6-1		 becky williams (3.71)
Elaine Solomon (3.84)
Match: 3.42 Rating: 3.64
10/03/2018 D1 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 PTC Ferrari 40F
Southwest
Mahealani Wing (3.85) 5-7
6-3
1-0		 Ann Watts (3.79)
Mara Ferrari (3.73)
Match: 3.74 Rating: 3.71
10/02/2018 D1 Adult 18+
4.0
4.0 CTC Colombero 18eaF
Southwest		 W 4.0 CTC Nichols/Phillips 18eaF
Southwest
Mahealani Wing (3.82) 6-2
6-1		 Teresa Beale (3.47)
Anne Parsons (3.55)
Match: 3.79 Rating: 3.72
09/27/2018 D1 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 Stonegate Muto 40F
Southwest
Mahealani Wing (3.81) 6-1
6-1		 Stacey Muto (3.33)
Khristina Gerads (3.23)
Match: 3.68 Rating: 3.70
09/26/2018 D1 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 STRC Fearn 40F
Southwest
Mahealani Wing (3.84) 5-7
6-3
1-0		 Kathy Krezel (3.59)
Kareth Snow (3.62)
Match: 3.59 Rating: 3.68
09/18/2018 S2 Adult 18+
4.0
4.0 CTC Colombero 18eaF
Southwest		 L 4.0 MTC/GA Keller 18eaF
Southwest
6-2
6-3		 Kristin Stoddard (3.84)
Match: 3.60 Rating: 3.69
09/12/2018 D1 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 ISP Huzevka 40F
Southwest
Carla Sulka (3.63) 6-1
7-5		 Carolyn Obrien (3.55)
Maryellen O'Brien (3.54)
Match: 3.81 Rating: 3.74
09/05/2018 D2 Adult 40+
4.0
4.0 CTC Wing 40F
Southwest		 W 4.0 PTC Abrams/Stafin-Lewis 40F
Southwest
Mahealani Wing (3.88) 6-1
6-4		 Mina Coker (3.57)
Lynette Larsen (3.58)
Match: 3.72 Rating: 3.72
09/04/2018 S2 Adult 18+
4.0
4.0 CTC Colombero 18eaF
Southwest		 W 4.0 PTC Sulka/Edwards 18eaF
Southwest
6-3
6-4		 Deralyn Woodbury (3.65)
Match: 3.79 Rating: 3.72
07/17/2018 D2 Adult Other
8.5
8.5 PTC Fitzpatrick Tue
Southwest		 W 8.5 MTC/GA Osborn Tue
Southwest
Carmen Walker (3.80) 0-6
6-4
1-0		 Phyllis Carbonaro (3.37)
Leah Carbonaro (3.59)
Match: 3.30 Rating: -----
06/26/2018 D2 Adult Other
8.5
8.5 PTC Fitzpatrick Tue
Southwest		 W 8.5 CTC Nichols/Holland Tue
Southwest
Kristin Stoddard (3.86) 6-4
6-2		 Gabrielle Blawn (3.64)
Anne Parsons (3.64)
Match: 3.72 Rating: -----
06/05/2018 D2 Adult Other
8.5
8.5 PTC Fitzpatrick Tue
Southwest		 W 8.5 Arrowhead Cassidy Tue
Southwest
Janice Golden (-----) 7-5
6-1		 Cheri Umlauf (3.55)
Valerie Foley (3.12)
Match: S Rating: -----
05/01/2018 D1 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 L 4.0 PTC Schneider - W18TuE
Southwest
Catherine Pearson (3.55) 6-2
5-7
1-0		 Valerie Schneider (3.67)
Sheila Wood (3.70)
Match: 3.70 Rating: 3.69
04/24/2018 D1 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 W 4.0 MTC/GA Keller - W18TuE
Southwest
Carla Sulka (3.61) 6-2
2-4		 Maria Keller (3.72)
Jill Heywood (3.84)
Match: 3.89 Rating: 3.73
04/17/2018 D2 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 L 4.0 CTC Colombero - W18TuE
Southwest
Carla Sulka (3.61) 6-1
7-5		 Gina Erickson (3.81)
Christianne Ritchey (3.88)
Match: 3.66 Rating: 3.67
04/10/2018 D1 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 W 4.0 SRP Peebles - W18TuE
Southwest
Chien Hue Edwards (3.62) 6-1
4-6
1-0		 Maryellen O'Brien (3.43)
Alison Hall (3.36)
Match: 3.54 Rating: 3.66
04/04/2018 D1 Adult 40+
4.0
4.0 PTC Ferrari - W40
Southwest		 W 4.0 PTC Lewis/Abrams - W40
Southwest
Carmen Walker (3.88) 6-1
6-4		 Emily Van Niel (3.31)
toni ohara (3.58)
Match: 3.60 Rating: 3.68
04/03/2018 D3 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 L 4.0 PTC Baker - W18TuE
Southwest
Carla Sulka (3.61) 6-4
3-6
1-0		 Kristy Miller (3.54)
Camilla Harrison (3.80)
Match: 3.73 Rating: 3.70
03/27/2018 D1 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 W 4.0 CTC Nichols/Holland - W18TuE
Southwest
Carla Sulka (3.59) 6-2
6-3		 Anne Parsons (3.58)
Anne Nichols (3.64)
Match: 3.90 Rating: 3.73
03/25/2018 D2 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 L 4.0 MTC/GA Keller - W18TuE
Southwest
Carla Sulka (3.60) 3-6
7-5
1-0		 Debra Riehm (3.77)
Lisa Bargery (3.46)
Match: 3.65 Rating: 3.67
03/21/2018 D1 Adult 40+
4.0
4.0 PTC Ferrari - W40
Southwest		 W 4.0 ISP Huzevka - W40
Southwest
Carmen Walker (3.83) 6-1
6-1		 Maryellen O'Brien (3.52)
Anne Klima (3.16)
Match: 3.68 Rating: 3.67
03/20/2018 D2 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 W 4.0 DCVillage Brasfield - W18TuE
Southwest
Chien Hue Edwards (3.63) 7-5
6-4		 Kathryn Brasfield (3.45)
Becky Flander (3.76)
Match: 3.73 Rating: 3.68
03/14/2018 D3 Adult 40+
4.0
4.0 PTC Ferrari - W40
Southwest		 W 4.0 PTC Edwards/Sulka - W40
Southwest
Zette Germany (3.61) 7-5
6-4		 May Scheuer (3.73)
Kathy Abraham (3.66)
Match: 3.81 Rating: 3.69
02/13/2018 D1 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 W 4.0 SRP Peebles - W18TuE
Southwest
Heidi Gottschalk (3.56) 7-5
6-4		 Carolyn Obrien (3.53)
Maryellen O'Brien (3.54)
Match: 3.67 Rating: 3.65
02/06/2018 D3 Adult 18+
4.0
4.0 PTC Sulka/Edwards - W18TuE
Southwest		 L 4.0 PTC Baker - W18TuE
Southwest
Carla Sulka (3.56) 5-7
6-4
1-0		 Katherine Baker (3.77)
Christine O'Hayre-Runnels (3.53)
Match: 3.66 Rating: 3.65
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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