San Leandro

Ages: 4–16 (T-Ball through Seniors)
Seasons: Spring
When: Spring 2027: Feb 6 – May 30, 2027
Sign-ups: Spring 2027 open now; register by Nov 15 to save $20; closes Jan 15, 2027.
Contact: florestabaseball@gmail.com · (510) 394-4171
Updates: Website up to dateInstagram active Oct 2026Facebook active Oct 2026

Washington Manor Junior League (WMJL)Rec

San Leandro · Coed

Ages: 4–18, plus 'Smiling Giants' division for kids needing extra support
Seasons: Fall, Spring
When: Spring; Fall Ball 2026: Sep 9 – Nov 15 (Sundays)
Sign-ups: Spring 2027 registration 'coming soon' (not open yet). Fall Ball 2026 closed.
Updates: Website up to dateInstagram active May 2026Facebook active May 2026

San Lorenzo Little LeagueRec

San Lorenzo, San Leandro, Ashland · Coed

2027 dates aren't on their website yet, but their Instagram is active. Check there for sign-up news.

Ages: 4–16 (Tee Ball through Seniors)
Seasons: Fall, Spring
When: Fall Ball 2026: Sep – Nov 22 (Sundays)
Sign-ups: Spring 2027 registration not posted yet. Ages 8+ must live or attend school in league boundaries (San Lorenzo or San Leandro/Ashland).
Contact: contact@slzll.org
Updates: Website: 2027 dates not posted yetInstagram active Oct 2026

Softball 1 listed

San Leandro Girls SoftballRec

San Leandro · Girls

Visit website Facebook

Seasons: Spring
When: Program runs Oct 15, 2026 – May 30, 2027
Sign-ups: Spring 2027 open now. Early bird ($110) Oct 1 – Dec 31, 2026; regular ($149) Jan 1 – May 31, 2027.
Updates: Website up to dateFacebook active Oct 2026

Soccer 3 listed

San Leandro Youth Soccer League (SLYSL)Rec + competitive

San Leandro · Boys & Girls

Ages: Competitive teams U9–U18
Seasons: Fall, Spring
Sign-ups: 2026/27 season tryouts sign-up posted on site.
Contact: SLYSoccerLeague@gmail.com
Updates: Website up to dateInstagram active Oct 2026Facebook active Oct 2026

Castro Valley Soccer Club – RecreationalRecAdaptive

Castro Valley (also serves Hayward, San Leandro) · Coed/Boys/Girls by age

Ages: U4–U19 (ages 3–18)
Seasons: Fall
When: Mid-August to first week of November
Sign-ups: Registration opens May 1 and closes May 31 each year. Fall 2026 full/closed.
Updates: Website up to dateInstagram active Oct 2026Facebook active Oct 2026
Adaptive: TOPSoccer: For kids with intellectual, emotional or physical disabilities; teams by ability, not age. $50 with uniform, at Stonebrae Elementary. Email topsoccer@castrovalleysoccer.com for dates. Details

Deportivo Barcelona Soccer ClubCompetitive / club

San Leandro / San Lorenzo · Boys & Girls

Ages: U8–U19
Seasons: Fall, Spring
When: 2026/27 NorCal season
Sign-ups: 2026/27 tryouts were in May 2026; inquiry form on site.
Contact: favdbsc@gmail.com · (510) 362-4175
Updates: Website up to dateInstagram active Aug 2026

Basketball 1 listed

JustHoop (Just Hoop Inc.) Club & AAU TeamsRec + competitive

San Leandro (serves Castro Valley, San Lorenzo, Hayward, Oakland) · Boys and girls (separate programs)

Ages: K–2 Future (co-ed); D-League grades 3–8 (boys & girls, no travel); ELITE boys grades 2–8 (D2 AAU); RISE 9U–11U; NATIONAL 12U–14U; Girls Got Game (3G) 9U–14U; PROVEN high school 15U–17U
Sign-ups: Team interest lists on site; banner says 'Future Winter Season now open! Register now!'
Contact: info@justhoopinc.com
Updates: Website up to dateInstagram active Oct 2026

Volleyball 2 listed

Kalani Volleyball (Club Kalani)Competitive / club

San Leandro · Girls

Their website is light on details, but their Instagram is active. Check Instagram for the latest sign-up news.

Ages: 11–18 (per its Facebook page)
Seasons: Winter, Spring
Sign-ups: 2026-27 tryouts were held Oct 12, 2026. Contact the club about open spots.
Contact: Kalanivolleyball@gmail.com · 808-282-9485
Updates: Website up to dateInstagram active Oct 2026

Bay Area Eagles Volleyball ClubCompetitive / club

Oakland, San Leandro · Girls and boys

Ages: Girls 10–14U (2027 tryouts); club teams from age 7 (Future Eagles developmental); boys teams 15U Gold, 15U Red, 17U Gold
Sign-ups: 2027 Girls 10–14U tryouts: tryout-only ticket $30 sold on site (dates not shown on the page text)
Contact: general@bayareaeaglesvbc.com · 415-846-5129
Updates: Website up to dateInstagram active Oct 2026

Flag Football 2 listed

San Leandro Flag (NFL FLAG San Leandro)Rec

San Leandro (serves Alameda and West Alameda County) · Coed divisions plus All-Girls divisions

Ages: Grades K-8 (grade-based: Co-Ed K/1, 2/3, 4/5, Middle School; Girls 4/5, Middle School). K-1st also has the 'Red Zone' intro program.
Seasons: Fall, Spring
When: Spring 2027: Saturdays March 20 - May 22 (10 games), afternoons; location Bancroft Middle School or TBD. Also ran a Fall 2026 season (listed as $275 Saturday afternoons on alamedaflagfootball.com).
Sign-ups: Spring 2027 registration OPEN (TeamPass): early bird $250 until October 31, 2026; new players $325; returning players $275 with promo code.
Updates: Website up to date

Next Level Flag Football - San LeandroRecAll games at one location

San Leandro · Coed

Ages: Grades K-7 (K/1, 2nd, 3rd, 4th, 5th, 6th/7th grade)
Seasons: Winter
When: Winter 2027: Sundays Jan 10 - Mar 7, 2027 at San Leandro High School; 9 program dates, practice + game back-to-back each week
Sign-ups: 2027 Winter registration open; Registration closes 01/18/2027; fee $305
Updates: Website up to date

Swimming 3 listed

East Bay Swim League (EBSL)Rec

Hayward, Castro Valley, San Leandro (plus Fremont and Newark teams) · Coed

Seasons: Spring, Summer
When: Summer recreational league; season runs mid-March to mid-July (per member teams). 2026 (49th annual) Championships were Fri July 10 and Sat July 11, 2026 at Chabot College, Hayward.
Sign-ups: Register through the member teams (see Find a Team page).
Contact: info@ebsl.org
Updates: Website up to date

San Leandro Swim Team (Drowning Darryls)Rec

San Leandro · Coed

Ages: Elementary through high school age
Seasons: Spring, Summer
When: 2026: first practice Mon March 16, 2026; Saturday-morning meets; Champs typically second weekend in July; end-of-season party Sun July 12, 2026.
Sign-ups: 2026: returning swimmers Jan 15 – Feb 15; parent info session Jan 27, 2026; new-swimmer tryouts Feb 27, March 6 and March 7 at the Boys & Girls Club San Leandro pool. 2027 dates not posted yet.
Updates: Website: 2027 dates not posted yet

Bay Area DolphinsRec

San Leandro · Coed

Seasons: Spring, Summer
When: 2026 season began Wed March 18, 2026; practices Mon–Thu. EBSL summer league (season ends with EBSL Champs in July).
Sign-ups: No active registration shown now. 2027 dates not posted yet.
Contact: thebayareadolphins@gmail.com
Updates: Website: 2027 dates not posted yet

Water Polo 1 listed

Alameda Water Polo Club (AWPC)Competitive / club

Alameda (serves Oakland, San Leandro, San Lorenzo, Berkeley, Piedmont, Hayward, Castro Valley) · Boys & Girls (separate 14U boys/girls groups)

Ages: 10–18 (10U, 12U, 14U groups in fall; Splashball also offered)
Seasons: Fall, Winter, Spring, Summer
When: Spring, Summer, Fall and Winter sessions. Fall 2026 session Aug 24 – Nov 14, 2026; practices at Mills and Encinal HS (EHS).
Sign-ups: Fall 2026 registration open. Pricing on the site: Splashball $805, 12U $855, 14/16/18U $1,005, plus a $125 AUSD lifeguard fee. Winter session dates not posted yet.
Contact: admins@alamedawaterpolo.org
Updates: Website: 2027 dates not posted yet

Lacrosse 1 listed

Skyline Lacrosse ClubRec

Oakland (also serves Piedmont, Castro Valley, San Leandro) · Boys & Girls separate divisions