Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (Rating) View Advanced Player Stats
Grace Koza (Littleton, CO)
Female 		4.5 C
12/31/2024
Estimated Dynamic Rating 4.5459
11/15/2025
Projected Year End Rating ------
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4.5 Rating Meter
Rating Meter
4.0001 - 4.5000
Recent Match History Current Rating History
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
09/02/2025 Adult Other
4.5		 KC-RH BLUE
Intermountain		 S1 Jessica Ouwerkerk
(4.55) 		W 4-6
6-4
1-0		 4.58 4.55
09/02/2025 Adult Other
4.5		 KC-RH BLUE
Intermountain		 D2 Lara Callas
(4.04) 		Mary Brennan
(4.46)
Denise Belk
(4.31) 		W 5-7
7-6
1-0		 4.62 4.55
08/19/2025 Adult Other
4.5		 KC-RH BLUE
Intermountain		 S1 Katherine Richey
(4.41) 		L 5-7
6-4
1-0		 4.39 4.52
08/12/2025 Adult Other
4.5		 KC-RH BLUE
Intermountain		 S1 Laura Kannaka
(4.40) 		L 2-6
6-1
1-0		 4.34 4.53
08/05/2025 Adult Other
4.5		 KC-RH BLUE
Intermountain		 S1 Christi Valicenti
(4.27) 		W 7-5
6-3		 4.40 4.53
07/29/2025 Adult Other
4.5		 KC-RH BLUE
Intermountain		 S1 Taryn Stromback
(4.51) 		W 6-2
6-3		 4.75 4.60
07/22/2025 Adult Other
4.5		 KC-RH BLUE
Intermountain		 S1 Jessica Ouwerkerk
(4.63) 		W 6-3
6-2		 4.87 4.59
06/07/2025 Mixed 18+
9.0
Districts		 SS-H GREEN
Intermountain		 D1 John Koza
(4.38) 		Frank Backes
(4.19)
Judy Flaherty
(4.13) 		W 6-1
6-4		 S 4.35
05/31/2025 Adult 18+
4.5		 KC-CC PURPLE
Intermountain		 S1 Julia Bridgewater
(4.11) 		W 6-0
6-4		 4.44 4.47
05/20/2025 Adult 18+
4.5		 KC-CC PURPLE
Intermountain		 S1 Evelyn Oltmans
(-----) 		W 6-4
4-6
1-0		 S 4.55
05/13/2025 Adult 18+
4.5		 KC-CC PURPLE
Intermountain		 S1 Maggie Wilson
(4.44) 		W 6-2
6-1		 4.78 4.55
05/06/2025 Adult 18+
4.5		 KC-CC PURPLE
Intermountain		 S1 Perri Anderson
(4.48) 		W 4-6
2-4		 4.34 4.42
05/04/2025 Mixed 18+
9.0		 SS-H GREEN
Intermountain		 D1 John Koza
(4.55) 		Michael Alexander
(4.63)
Michelle Foreman
(4.25) 		L 7-5
6-2		 S 4.35
04/27/2025 Mixed 18+
9.0		 SS-H GREEN
Intermountain		 D2 ryan beckstrom
(4.33) 		Natalia Isabel Camera Perez
(4.21)
John Kelleher
(4.24) 		W 6-3
4-6
1-0		 4.30 4.35
04/22/2025 Adult 18+
4.5		 KC-CC PURPLE
Intermountain		 S1 Michelle Miller
(4.26) 		W 6-2
6-2		 4.55 4.47
04/15/2025 Adult 18+
4.5		 KC-CC PURPLE
Intermountain		 S1 Mariana Hosomi
(4.46) 		W 6-4
6-4		 4.56 4.41
04/13/2025 Mixed 18+
9.0		 SS-H GREEN
Intermountain		 D2 John Koza
(-----) 		Jim Carpenter
(4.22)
Tanja Sukovic
(4.35) 		W 7-5
6-2		 S 4.36
04/06/2025 Mixed 18+
9.0		 SS-H GREEN
Intermountain		 D1 Jordan Jacob
(4.44) 		Rory Jaggers
(4.33)
James Jaggers
(4.32) 		W 6-7
6-3
1-0		 4.36 4.36
09/02/2025 S1 Adult Other
4.5
KC-RH BLUE
Intermountain		 W LTC-M GREEN
Intermountain
4-6
6-4
1-0		 Jessica Ouwerkerk (4.55)
Match: 4.58 Rating: 4.55
09/02/2025 D2 Adult Other
4.5
KC-RH BLUE
Intermountain		 W LTC-M NAVY
Intermountain
Lara Callas (4.04) 5-7
7-6
1-0		 Mary Brennan (4.46)
Denise Belk (4.31)
Match: 4.62 Rating: 4.55
08/19/2025 S1 Adult Other
4.5
KC-RH BLUE
Intermountain		 L SS-LGT YELLOW
Intermountain
5-7
6-4
1-0		 Katherine Richey (4.41)
Match: 4.39 Rating: 4.52
08/12/2025 S1 Adult Other
4.5
KC-RH BLUE
Intermountain		 L SS-LGT PURPLE
Intermountain
2-6
6-1
1-0		 Laura Kannaka (4.40)
Match: 4.34 Rating: 4.53
08/05/2025 S1 Adult Other
4.5
KC-RH BLUE
Intermountain		 W BP ORANGE
Intermountain
7-5
6-3		 Christi Valicenti (4.27)
Match: 4.40 Rating: 4.53
07/29/2025 S1 Adult Other
4.5
KC-RH BLUE
Intermountain		 W LTC-M NAVY
Intermountain
6-2
6-3		 Taryn Stromback (4.51)
Match: 4.75 Rating: 4.60
07/22/2025 S1 Adult Other
4.5
KC-RH BLUE
Intermountain		 W LTC-M GREEN
Intermountain
6-3
6-2		 Jessica Ouwerkerk (4.63)
Match: 4.87 Rating: 4.59
06/07/2025 D1 Mixed 18+
9.0
Districts
SS-H GREEN
Intermountain		 W LTFCS MARTIN
Intermountain
John Koza (4.38) 6-1
6-4		 Frank Backes (4.19)
Judy Flaherty (4.13)
Match: S Rating: 4.35
05/31/2025 S1 Adult 18+
4.5
KC-CC PURPLE
Intermountain		 W WP GREEN
Intermountain
6-0
6-4		 Julia Bridgewater (4.11)
Match: 4.44 Rating: 4.47
05/20/2025 S1 Adult 18+
4.5
KC-CC PURPLE
Intermountain		 W WP RED
Intermountain
6-4
4-6
1-0		 Evelyn Oltmans (-----)
Match: S Rating: 4.55
05/13/2025 S1 Adult 18+
4.5
KC-CC PURPLE
Intermountain		 W LTFC GREEN
Intermountain
6-2
6-1		 Maggie Wilson (4.44)
Match: 4.78 Rating: 4.55
05/06/2025 S1 Adult 18+
4.5
KC-CC PURPLE
Intermountain		 W SS-LGT RED
Intermountain
4-6
2-4		 Perri Anderson (4.48)
Match: 4.34 Rating: 4.42
05/04/2025 D1 Mixed 18+
9.0
SS-H GREEN
Intermountain		 L SS-H GOLD
Intermountain
John Koza (4.55) 7-5
6-2		 Michael Alexander (4.63)
Michelle Foreman (4.25)
Match: S Rating: 4.35
04/27/2025 D2 Mixed 18+
9.0
SS-H GREEN
Intermountain		 W SS-LGT RED
Intermountain
ryan beckstrom (4.33) 6-3
4-6
1-0		 Natalia Isabel Camera Perez (4.21)
John Kelleher (4.24)
Match: 4.30 Rating: 4.35
04/22/2025 S1 Adult 18+
4.5
KC-CC PURPLE
Intermountain		 W WP GREEN
Intermountain
6-2
6-2		 Michelle Miller (4.26)
Match: 4.55 Rating: 4.47
04/15/2025 S1 Adult 18+
4.5
KC-CC PURPLE
Intermountain		 W WP RED
Intermountain
6-4
6-4		 Mariana Hosomi (4.46)
Match: 4.56 Rating: 4.41
04/13/2025 D2 Mixed 18+
9.0
SS-H GREEN
Intermountain		 W PCC GREEN
Intermountain
John Koza (-----) 7-5
6-2		 Jim Carpenter (4.22)
Tanja Sukovic (4.35)
Match: S Rating: 4.36
04/06/2025 D1 Mixed 18+
9.0
SS-H GREEN
Intermountain		 W HG BLUE
Intermountain
Jordan Jacob (4.44) 6-7
6-3
1-0		 Rory Jaggers (4.33)
James Jaggers (4.32)
Match: 4.36 Rating: 4.36
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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