Shipwatch Tennis Club tennis director Kevin Manning reached the round of 16 in this month's USTA National Men's 50 Hard Court Championships in Santa Barbara, CA. Kevin was the No. 9 seed.    Topseed Jeff Davis played to the quarterfinal round in the men's 50 singles in the 83rd Annual Public Parks Tennis Championships in Lexington, S.C.      In the state mixed doubles championships at Royal Racquet Club last weekend, Linda Thomson and Grahame Bell won the 45-and-over round robin and Judi and Dale Alford claimed the 35.    The Summer Classic Designated at Royal resulted in Joan Simmons winning the women's 35 and Reinaldo Valor defending his topseeding in the 65 division. Runnersup were Anya Coy in the open and Alex Deeb the men's 55.    .... AT NATIONALS.....Anastasia Nefedova, 10, won her first gold ball with her national singles championship last month in the USTA Clay Court Girls 12 National Championships in Boca Raton. Anastasia, who is coached by her father Eugene Nefedev at Royal Racquet Club, battled over a 7-hour period that included two rain delays and a three-set match. Second-seed Anastasia won the first set in a tiebreak, fell 6-2 in the second and held serve in the third to win 6-4.    Last month, Anastasia won the girls 12 Florida state title. This month, Anastasia competed in the USTA Hard Court Girls 12 National Championships in Georgia and played to the semifinal round.    No. 11 seed Alexandra Cercone advanced to the quarterfinal round before falling in three sets to No. 4 Lauren Embree of Marco Island in the USTA National Girls 18 Hard Court Championships. Alexandra and partner Jacqueline Kasler of Gulf Breeze reached the round of 16 in doubles.      In the USTA Clay Court Girls 18 National Championships in Memphis, Tenn., No. 4 seed Danielle Collins played to the consolation final.    Danielle was one of seven juniors representing Florida in the USTA Girls 18 National Team Championships in Novato, CA. Team Florida finished second overall to USTA section Southern California.    Area players Adam Ambrozy, Jake Gabay, Jacqueline Lazaro and Noah and Star Makarome were five of 12 players representing Team Florida at the USTA 12 Zone Team Championships in Knoxville, Tenn. Kevin Quay helped coach the team.    Team Florida beat USTA section Mid-Atlantic in the final 15-3. Adam was unbeaten in No. 2, as was Jacqueline in No. 4. Noah in No. 5, Jake in No. 6 and Star in No. 1 were all 4-1.    Jacqueline was named the event's sportmanship winner.    Emily Dvorak and Garrett Betsarakis were among juniors selected to represent Florida in the USTA 16s Intersectional Championships in Shreveport, LA.    .... AT STATE....In this month's junior designated tournaments in south Florida, best local finishes included Alexis Franco in the girls 12 and Garrett in the boys 18 each playing to the quarterfinal round and Ricky Symanski reaching the boys 16 round of 16.      At last month's North Florida Designated Tournament in Tallahassee, No. 4 seed Agatha Ambrozy finished second in the girls 16 division. No. 7 seed Amy Lowther was fourth in the girls 16 competition.    ....AT LOCAL....Agatha Ambrozy collected a singles title in girls 18 round robin in the Treasure Island Local Junior Tournament, along with Dilan Scargle in the boys 10, topseed Aaron Carey in 12 and Adam Ambrozy in 14. Playing to runnerup spots were Jack Ledford-Stover (boys 10), Beau Langford (12) and Parker Hayslett (14). Boys 14 topseed Ganesh Rajaram won the consolation draw.    Laurel Wanger of Belleair won the girls 10 title and Raquel Moya of Oldsmar the 16 in the Gulf Coast Local Summer Classic Two staged at the Tarpon Tennis Club. Sarah Wall of Palm Harbor played to the girls 16 final before falling to Raquel.    Collecting consolation wins were Samantha Azadian (girls 16), Aaron Swartz (boys 12), Gregory Perenich (14) and David Hopp (16).    Jerica Coley in the girls 16, Alexandra Kitchen the 16 and Jack Ledford-Stover the boys 10 were division winners in the Impact Training Local Back to School Tournament at River Ridge High School. Mohamed Nuh was the boys 12 runnerup.    Jerica upset topseed Natalie Boruk of Clearwater in the final, as did Alexandra in her final. Jack eliminated the topseed in a semifinal and then beat the No. 2 seed in a third-set 10-point tiebreaker in the final.    Named champions in East Lake's Summer Local Junior Championships were topseeds Anastasha Worlds in the girls 12, Melanie Dlugolecki the 10s, Chase Rutan boys 10 and Aaron Carey the 12. Second-seed Ganesh Rajaram upset the topseed to win the boys 14.    Largo players scored wins in this month's Hot, Hot, Hot Rookie Tournament at Seminole Lake Tennis Center. Pro-set champions included Kristin Nesslar in the girls 16, Meredith Riccardi the 12, Taylor Cook the 10 and Logan Weyand boys 14.