← Search

Keith Costello

Add to scout listFree account. Monday email when they play.
Trabuco Canyon, CA
3.5T year-end 2025
i
Tournament Exclusive — rating from tournament play only
62 matches · 20W–42L · seasons 2019–2025
Match history62 matches
L
2025-06-28 · OC Coto de Caza - Kevin · #2 Doubles · 8.0 · with Alexis Braun mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
3-6, 4-6
L
2025-06-15 · OC Coto de Caza - Marc - Sun11 · #1 Doubles · 7.0 · with Asha Radicic mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
4-6, 4-6
L
Matthew Lear / Joanne Nelson
2025-06-14 · OC Coto de Caza - Kevin · #1 Doubles · 8.0 · with Andrea Kozak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
1-6, 4-6
W
2025-06-01 · OC Coto de Caza - Kevin · #3 Doubles · 8.0 · with Alexis Braun mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
7-6, 7-6
W
2025-05-18 · OC Coto de Caza - Kevin · #2 Doubles · 8.0 · with Alexis Braun mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-1, 6-1
W
2025-02-16 · OC Coto De Caza - Kevin · #2 Doubles · 8.0 · with Andrea Kozak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-3, 5-7, 1-0
L
2025-02-09 · OC Coto De Caza - Kevin · #3 Doubles · 8.0 · with Alexis Braun mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
1-6, 1-6
L
2025-01-18 · OC Coto De Caza - Kevin · #2 Doubles · 8.0 · with Andrea Kozak mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
1-6, 1-6
L
2024-10-13 · OC Coto De Caza - Chat Sun10 · #3 Doubles · 8.0 · with Rebecca Brown mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
2-6, 1-6
L
2024-06-30 · OC Marguerite MVTC - Kelley - Sun1030 · #1 Doubles · 7.0 · with Ellen Aistars mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-3, 5-7, 0-1
L
2024-06-02 · OC Coto de Caza - Chat - Sun10 · #2 Doubles · 8.0 · with Nikki Fermin mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-4, 4-6, 0-1
W
2024-05-19 · OC Coto de Caza - Chat - Sun10 · #1 Doubles · 8.0 · with Nikki Fermin mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
6-1, 6-3
Where you rank locallyagainst everyone at your level
Teams23 teams · 2019–2025
HOLDING PLAYERS
2025 OC 55 & Over Mixed Doubles · OC Holding players · 55+
2025
OC Coto De Caza - Kevin
2025 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 18+
2025
OC Coto de Caza - Kevin
2025 USTA Mixed Doubles 40 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 40+
2025
OC Coto de Caza - Marc - Sun11
2025 USTA Mixed Doubles 40 & Over - OC · OC - 7.0 WE - Weekend Mixed Doubles · 40+
2025
OC Coto De Caza - Chat - Sun10
2024 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 18+
2024
OC Coto De Caza - Chat Sun10
2024 OC 55 & Over Mixed Doubles · OC WE 8.0 · 55+
2024
OC Coto de Caza - Chat - Sun10
2024 USTA Mixed Doubles 40 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 40+
2024
OC Marguerite MVTC - Kelley - Sun1030
2024 USTA Mixed Doubles 40 & Over - OC · OC - 7.0 WE - Weekend Mixed Doubles · 40+
2024
OC - Coto de Caza - Keith Sun10
2023 USTA Mixed Doubles 40 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 40+
2023
OC Coto De Caza - Keith Sun10
2023 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 18+
2023
OC Coto De Caza - Keith Sun10
2023 OC 55 & Over Mixed Doubles · OC WE 8.0 · 55+
2023
OC - Coto De Caza - Costello
2022 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 18+
2022
OC Coto De Caza - Keith
2022 USTA Mixed Doubles 40 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 40+
2022
OC Coto De Caza - Keith
2022 OC 55 & Over Mixed Doubles · OC WE 8.0 · 55+
2022
OC - Coto de Caza - Keith
2021 OC 55 & Over Mixed Doubles · OC WE 8.0 · 55+
2021
OC - Coto de Caza Men- Leonard
2021 USTA Adult 40 & Over - OC WE · OC Men - 4.0 · 40+
2021
OC Coto de Caza - Costello Sun 9am
2021 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 18+
2021
Coto 8.0 Mixed - Coto GR - Costello-SU 11
2020 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 18+
2020
Captain's Only Team
2019 SCTA Doubles 18 & Over - OC · Captains/Refunds · 18+
2019
OC Coto De Caza - Costello - SU 11
2019 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 18+
2019
OC Coto De Caza - Costello - Sun 10
2019 USTA Mixed Doubles 40 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles · 40+
2019
OC Coto de Caza GR - Costello - SUN 10
2019 USTA Adult 55 & Over - OC · OC Men - 8.0 · 55+
2019
OC Pratap """"Chat"""" Leonard - Coto GR - Sun 10
2019 OC 55 & Over Mixed Doubles · OC WE 8.0 · 55+
2019
Over timerating by season, and how you rank
By level4 levels played
4.0
0W–1L
not enough matches yet
8.0
50%
4W–4L · 49.7% of games
7.0mixed
0W–2L
not enough matches yet
8.0mixed
31.4%
16W–35L · 44.7% of games

Games won matters more than matches won — NTRP adjusts on margins.

By lineusually #2 Doubles, 45% of the time
#2 Doubles
45%
28 matches
#1 Doubles
27%
17 matches
#3 Doubles
27%
17 matches

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

I don’t want to be somebody else. I want to be myself and win in my way.
Rafael Nadal