• Tri-Valley Babe Ruth -- 13-15 year-old players interested in playing baseball for Tri-Valley Babe Ruth in 2014 are invited to attend 2013 Opening Day Ceremonies on May 25 at 11:30 a.m. Camp Parks Army Base, Dublin. www.tvbrbaseball.org, trivalleybaberuth@sbcglobal.

  • Baseball USA Nationals -- Tryouts by appointment for the 13U-18U Baseball USA Nationals teams. 6761 Sierra Ct., Suite B, Dublin. 925-785-5531, Coachfisher44@aol.com

  • Danville Bulls Elite Travel Ball -- Tryouts by appointment for 13U-20U summer teams, 925-708-3173, lancerblankenship@sbcglobal.net

  • Slammers Baseball -- Open roster spots available for players born 5/1/02 or after. Contact Coach Ryan for an evaluation. Ryanallman10@gmail.com

  • Antioch Little League -- Registration for ages 4-16. 3001 Delta Fair Boulevard, Antioch. 925-431-8478, www.AntiochLittleLeague.com

  • Antioch Travel Baseball -- Antioch Sluggers 10U has 1-2 roster spots. Two tournaments per month, no monthly dues. Tryout by appointment. Ray 925-699-7106

  • Alameda World Tournament Baseball -- Tryouts by appointment for Alameda World Tournament Baseball team. For boys age 15. 928 Magnolia Drive, Alameda. 510-381-3434, rich@dsp.net, www.alamedaworldbaseball.com

  • Bronco Baseball Academy -- Sign-up for summer baseball camp. Designed for players of all skill levels who want to improve their game. 425 Castle Rock Rd., Walnut Creek, 925-899-4037, www.broncobaseballacademy.com

  • California Smoke -- Tryouts by appointment for the U18 California Smoke baseball 2013 summer teams. San Jose Municipal Stadium, San Jose. 510-715-9813, calsmoke@pacbell.net, www.smokebaseball.com

  • Delta Baseball League -- Registration ongoing for Spring 2013 Delta Baseball League online. For players ages 4-12. 5641 Lone Tree Way, Brentwood. www.deltabaseballleague.com

  • Diablo Warriors -- Tryouts by appointment for the U14 Diablo Warriors travel baseball team. Ygnacio Valley High School, 755 Oak Grove Rd., Concord. 925-671-7758, emanlaw99@hotmail.com, northrupmb@yahoo.com

  • Golden Era Baseball -- Tryouts by appointment for 15U-18U Golden Era Baseball team. 800-331-8752, sayhey@goldenerabaseball.com, www.goldenerabaseball.com

  • Martinez Bulldogs -- Tryouts by appointment for 12U Martinez Bulldogs Baseball Spring 2013 Team. Tesoro Fields, 1765 Arnold Industrial Way, Concord. 925-683-4973, Selliott356@att.net

  • Oakland Velocity Baseball -- Practices are on Thursday and Friday nights at 6:15 p.m. at Bishop O'Dowd High School. For a tryout appointment contact Head Coach Cedric Gilmore , 510-584-7239, coachcgilmore@yahoo.com.

  • Pittsburg Little League -- Register online for Pittsburg Little League 2013 season. $110-$150. 925-291-0107, www.pllca4.org

  • Patriots Baseball Club -- Tryouts by appointment for 12U boys 2011 AWS World Series Champion Patriots Baseball Club. 925-383-1819, concordpatriots1@gmail.com

  • Walnut Creek Bulldawgs -- Tryouts by appointment for the upcoming Walnut Creek Pony season. For boys and girls ages 9-14. 1630 Challenge Dr., Concord. 925-446-6569, www.walnutcreekpony.org

    SOFTBALL

  • Pleasanton Phantom Girls Softball League -- Registration is ongoing for Pleasanton Phantom Girls Softball League. For girls grades K-12. christine.t@pleasantonsoftball.org, www.pleasantonsoftball.org

  • Antioch Little League -- Registration for Antioch Little League 2013 season online. For players ages 4-16. 3001 Delta Fair Boulevard, Antioch. 925-431-8478, www.AntiochLittleLeague.com

  • City of Orinda Softball League -- Registration open now for Competitive, Recreation, and Co-Ed Divisions. 925-254-2445, cityoforinda.org

  • Delta Softball League -- Registration ongoing for Spring 2013 Delta Softball League. For players ages 4-18. 5641 Lone Tree Way, Brentwood. www.deltabaseballleague.com

  • Havoc Softball Club -- Tryouts by appointment for the 10U 2011 USSSA State Champion Havoc Softball Club. 925-586-5029, havocsoftballclub1@gmail.com

  • Lady Wolfpack -- Tryouts by appointment for 14U Lady Wolfpack Softball. 510-688-6398, ladywolfpackaccounting@yahoo.com

  • Mayhem Fastpitch -- Tryouts by appointment for 12U Mayhem Fastpitch Softball. 209-915-0439, mayhem-fastpitch@sbcglobal.net

  • NorCal Valley Stompers -- Looking for pitchers for San Ramon girls 12U fastpitch softball team for the spring/summer season. Email s.renfro@me.com or call for appointment. 925-575-0815

  • Oakland Bandits -- Tryouts by appointment for 12U-14U Oakland Bandits Spring/Summer Softball teams. 510-472-3768, info@oaklandbandits.com, www.oaklandbandtis.com

  • Oakland Vipers -- Tryouts for girls 18U fast pitch summer travel team. 4-6 p.m. on May 19 at Thrasher Park. 1302 Orchard St. San Leandro. 510-290-5475, pauljkeener@sprint.blackberry.net

  • Pleasant Hill Recreation Adult Summer Sports League -- Registration open now for mens and womens teams. Contact Sheila 925-682-0896, sgeorge@pleasanthillrec.com

  • Pleasant Hill Baseball Association -- Looking for girls for the 16U upcoming Summer season. Contact phbapttc@gmail.com for more details. 1 Santa Barbara Rd., Pleasant Hill. 925-933-7950, www.phba.org

  • Ripon Lady Cyclones -- Tryouts by appointment for 14U Ripon Lady Cyclones. 209-613-8849, 209-629-0312

  • SRVGAL -- Umpires wanted for San Ramon Valley Girls Athletic League Softball. 925-575-0815, www.srvgal.org/umpires.html

  • Union City Premier Tops -- Tryouts by appointment for U11 Union City Premier Tops Fall softball team. Accinelli Park, Union City. 510-673-1766, 408-218-9596

  • Vallejo Hurricanes Softball -- Looking for a seasoned catcher for the 16U girls team. for private tryout email or call, www.leaguelineup.com/hurricanessoftball16u, 707-315-8477

    BASKETBALL

  • Monte Vista Red & Black Camp -- Registration for Monte Vista High School basketball camp. For boys and girls grades 3-9. June 24-July 11 from 10 a.m.-2 p.m. Contact njones@mvhigh.net

  • Grizzlies Basketball Camp -- Sign-ups for California High School basetkball camp. For boys grades 6-9. Camps runs from 10 a.m.-1 p.m., July 15-19. California High School, 9870 Broadmoor Dr., San Ramon. $125 or $100 before 6/10. 925-785-6207, gfitch@srvusd.net

  • San Ramon Valley Basketball Camp -- Registration for girls in grades 2nd-5th, 11:15 a.m.-1:15 p.m. on July 8-12 and July 15-19. San Ramon Valley high school, 501 Danville Blvd., Danville, 925-552-3719

  • Alameda Youth Camp -- Sign-ups for boys and girls basketball camp, focusing on team and individual fundamentals, ages 8-14, girls camp runs June 11-14; boys camp runs June 17-20, 9 a.m.-3 p.m.; $150 before May 1, Alameda High School, 510-710-8811, bthomas@alameda.k12.ca.us

  • Alameda Skills Camp -- Sign-ups for girls, ages 8-14. Offensive skills session: June 24-26; Defensive skills session: July 8-10; Offensive skills II: July 15-17. $95 session. At Alameda High School, 510-823-6477 , bthomas@alameda.k12.ca.us

  • Defend the Rim Camp -- Basketball camp for boys and girls, ages 8-14. 9-3 p.m. on June 29-30 at Encinal High School. 510-504-3090, mr.shermanlee@gmail.com

  • East Bay Youth Sports -- Basketball is Fun Clinic, 5:30-7:30 p.m., Mondays. For boys and girls ages 5-12. Walnut Creek Presbyterian Church, 1801 Lacassie, Walnut Creek. $150. 925-952-4450, www.ebys.org

  • NorCal Courts -- NorCal Courts Adult Drop-In Basketball, 11 a.m.-4 p.m. weekdays, 6-9 p.m. Sundays, and 9-11 p.m. Wednesdays. 360 Ferry St, Martinez. $5. 925-708-7929, www.norcalcourts.com

  • NorCal Courts -- NorCal Courts Adult Basketball League, Tuesday evenings. 360 Ferry St., Martinez. $525 per team. 925-708-7929, norcalcourts@gmail.com, www.norcalcourts.com

  • NorCal Youth Basketball Camp -- Youth basketball camp, for boys and girls grades 2-8. Five sessions: June 17-21 and July 8-12. 360 Ferry St., Martinez. $99. www.norcalcourts.com, 925-708-7929, coachdan@norcalcourts.com

  • City of Orinda Adult League -- Registration now open for all levels. Games start mid June. Contact 925-254-7688, cityoforinda.org

  • Orinda Drop-in Basketball -- Every Sunday night from 5-7 p.m. at Wagner Ranch Elementary. 350 Camino Pablo, Orinda. $6 residents, $7 non-residents. 925-254-2445, cityoforinda.org

  • Pleasant Hill Recreation and Park -- Pleasant Hill Recreation's Adult Drop-In basketball, every Friday at 5:30-7 p.m., and Sundays, 8-10 a.m. PH Education Center Gym, 1 Santa Barbara Road. $5. www.pleasanthillrecsports.com

  • Purple & White Camp -- Registration for 14th annual Piedmont summer basketball camp. For boys and girls ages 9-14, June 24-27: 1-5 p.m. or July 15-18: 9 a.m.-1 p.m. at Piedmont High School, $179, 510-420-3074, dweisgerber@ci.piedmont.ca.us

  • Salesian Red & Black Camp -- For boys and girls, grades 4-9. Session I: June 24-28, Session II: July 8-12, Session III: July 15-19. Salesian High School, 2851 Salesian Ave., Richmond. $100. www.salesian.com/sportscamps, 510-234-4433 ext. 1015.

  • Salesian Clinic -- One day clinic on June 15 for girls, grades 5-9. Salesian High School, 2851 Salesian Ave., Richmond. $40 or $25 before June 1st. www.salesian.com/sportscamps, 510-234-4433 ext. 1015.

  • UCP Camp -- United Cerebral Palsy Special Needs Basketball Camp. For boys and girls ages 6-18 on June 2, 16, 30, July 14 and 18 from 5-6:30 p.m. NorCal Courts, 360 Ferry Street, Martinez. $60. 925-708-7929, coachdan@norcalcourts.com, www.norcalcourts.com

    Football

  • Pleasanton Junior Football League -- PSJL Flag Football Masters Division registration open. For boys and girls grades 9-12. $95. 925-989-0540, www.pjfl.com

  • California Pirates -- Tryouts by appointment for California Pirates adult tackle football team. For players ages 18 and over. 510-472-1166, i_davis2001@yahoo.com

  • East Bay Youth Football Academy -- Registration for one day football clinic and combine. Ages 11-14, May 5 at 11:30-2:30 p.m. Bishop O'Dowd High School, 510-599-4292, www.eastbayfootballacademy.com

  • East Bay Youth Football Academy -- Registration for non-contact football camp. For ages 6-10, camp starts June 17 at Bishop O'Dowd High School, 510-599-4292, www.eastbayfootballacademy.com

  • Next Level NFL Flag Football and Cheer -- Next Level NFL Flag Football and Cheer registration is open. For boys and girls ages 5-14. Games and practices Sundays, through May. Newark, Fremont and Union City. www.leaguelineup.com/nextlevel-fca

  • Pleasant Hill Recreation Adult Summer Sports League -- Registration open now for adult Flag Football teams. Contact Sheila 925-682-0896, sgeorge@pleasanthillrec.com

  • WCYAA Youth Sports -- Online registration for Flag Football, ages 3rd-8th grade, $315, Foothill Middle School, 2775 Cedro Lane, Walnut Creek, 925-933-4884, wcyaasports@yahoo.com, www.wcyaa.com

  • West Pittsburg Youth Football and Cheer -- West Pittsburg Youth Football and Cheer sign-ups online. For boys and girls ages 5-14. www.wpyf.com

    Fundraisers

  • Buon tempo Italian American Club -- Fourth annual George Mark Childrens House Bocce Tournament on June 8 at Adobe Park courts, Castro Valley. Event is limited to 12 four person mixed teams of all skill levels, must register by June 1. $150. 510-727-9296, cvbearhouse@gmail.com

  • Clayton Valley Charter School -- Donations, gift certificates and appropriate merchandise are being accepted for CVC Grad Night. Make checks payable to Grad Night 2013, P.O. Box 59, Clayton, 94517

    Golf

  • First Tee of Contra Costa -- First Tee of Contra Costa spring sessions 4-5:30 p.m. weekdays and 9:30-5:30 p.m. Saturday, through May 24. For boys and girls ages 5-17. Diablo Creek GC, Boundary Oak GC, Lone Tree GC, Pine Meadow GC, Hiddenbrooke GC. $75 for ages 5-6, $79 for ages 7-17, 925-963-0740, larrylee52@comcast.net, www.thefirstteecontracosta.org

  • First Tee of Contra Costa -- Volunteers needed for First Tee of Contra Costa spring sessions 4-5:30 p.m. weekdays and 9:30 a.m.-5:30 p.m. through May 24. Diablo Creek GC, Boundary Oak GC, Lone Tree GC, Pine Meadow GC, Hiddenbrooke GC. 925-963-0740, larrylee52@comcast.net, www.thefirstteecontracosta.org

  • First Tee of Oakland -- First Tee of Oakland spring sessions, once a week Monday-Wednesday at 4-5:30 p.m. or Thursday 11 a.m.-12:30 p.m., through May 18. For boys and girls ages 7-17. 10051 Doolittle Dr., Oakland and 11450 Golf Links Rd., Oakland. $150, limited scholarships available. 510-352-2002, www.TheFirstTeeOakland.org

  • First Tee of Oakland -- First Tee of Oakland summer sessions, once a week Monday-Thursday at 4-5:30 p.m. or Saturday 11 a.m.-12:30 p.m., June 17-Aug. 17. For boys and girls ages 6-17. 10051 Doolittle Dr., Oakland and 11450 Golf Links Rd., Oakland. $150, limited scholarships available. 510-352-2002, www.TheFirstTeeOakland.org

  • Alameda Junior Golf Club -- 2013 Tournament season and clinics, 9 a.m. Wednesdays, June-August. For boys and girls ages 7-17. Chuck Corica GC, One Clubhouse Memorial Drive, Alameda. $30, 510-521-4727, alamedajrgolf@gmail.com

    Soccer

  • Mustang Soccer -- Registration is open for all ages and skill levels, through June 30, after June 30th a $50 late fee will apply, www.mustangsoccer.com

  • Delta Youth Soccer League -- Tryouts for U15-U19 boys and girls Delta Youth Soccer League. 1030 Apollo Ct., Antioch. www.deltasoccer.org

  • DFC Soccer -- Tryouts by appointment for girls U14 DFC Gold team. Looking for two players and a goalkeeper. 925-671-2851, 925-200-7491

  • El Cerrito Futbol Club -- Registration for upcoming Fall season. Girls and boys, ages 4-18 welcome. 7-9 p.m. on May 7 at Fairmont School Clubhouse, 715 Lexington Ave., El Cerrito, forms available for early registration discount at El Cerrito Community Center, 7007 Moeser Lane, www.elcerritofc.com, 510-414-1039

  • Heritage Soccer Club -- Looking for girls for competitive U15, U16, U17 teams. Email for tryout details. U15 Pride 98 Regional Academy team: mexplaya92@comcast.net; U16 Gold: silvasoccer24_7@sbcglobal.net; U17 Impact: randy@heritagesc.com. www.heritagesc.com, 925-783-3564

  • Orinda Drop-in Soccer -- Sunday mornings at Wilder fields from 9:30-11:30am. For more information call 925-254-7688.

  • Pleasant Hill Recreation Adult Summer Sports League -- Registration open now for mens and womens Soccer and Kickball teams. Contact Sheila 925-682-0896, sgeorge@pleasanthillrec.com

    Water Polo

  • Lazers Water Polo Club -- Registration open for 14U, 15U boys and girls teams. Monday, Wednesday & Friday's at 4-5:30 p.m. Robert Livermore Community Center Pool. $265, discount available for Livermore residents. www.larpd.dst.ca.us, lazerswp@clubspaces.com, 925-373-5751

  • Ohlone Renegades -- Registrations ongoing for Ohlone Renegade Club Water Polo. For boys and girls grades 5-12. $250-$350. 510-742-2303, ohloneh2opolo@yahoo.com

    JOBS

  • Livermore Valley Charter Prep High School -- Looking for a boys varsity soccer coach and a girls varsity volleyball coach. 925-456-9000, mburstein@lvcp.org

  • Athenian High School -- Looking for girls varsity, JV, and frosh volleyball coaches. Also, looking for boys varsity basketball coach. Contact Darek Cliff, 925-362-7206, darek.cliff@athenian.org

  • Berean Christian High School -- Looking to fill head varsity coach and assistant coach positions for 2013-14 season. Head coach positions include girls tennis, girls basketball, and track and field. Assistant positions include football line coach, cross country, girls varsity and JV basketball, swimming, track and field, and lacrosse. www.berean-eagles.org, 925-945-6464 ext. 25, clee@berean-eagles.org

  • Campolindo High School -- Looking for a head varsity girls basketball coach. Contact Bob Wilson at bwilson@acalanes.k12.ca.us or Tom Renno at trenno@acalanes.k12.ca.us

  • Carondelet High School -- Looking for a JV cheer assistant. Also looking for Water Polo coaches and JV tennis assistants for the Fall. 925-686-5353 ext. 168, ggreen@carondeleths.org

  • Concord High School -- Looking for a Varsity girls water polo and Varsity girls basketball coach. Send resume to hamiltonb@mdusd.org

  • Concord Parks and Recreation -- Looking for a Field Supervisor on league nights. Willow Pass Community Park, 2748 E. Olivera Road, Concord. 925-671-3423, www.cityofconcord.org