Sunnyvale Metro Little League
- Baseball team information, calendar, newsletters and bylaws.
- http://www.sunnyvalemetro.org/

AYSO Region 44 - Sunnyvale, CA
- AYSO Region 44 covers all of the city of Sunnyvale, California. AYSO Region 44 is open to all boys and girls aged 5 to 18 (as of 8/01/04). We are part of AYSO Area 2A which covers the south San Francisco Peninsula. Our soccer season runs from mid-August
- http://www.ayso44.org/

Sunnyvale Parks and Recreation
- Official city site.
- http://sunnyvale.ca.gov/Departments/Parks+and+Recreation/

Sunnyvale Swim Club
- Training in beginner to advanced swimming. Focus on teamwork and competitive swimming lessons.
- http://www.sunn.org/

Sunnyvale Tennis Club
- Schedules, membership, news.
- http://www.sunnyvaletennisclub.org/

Sunnyvale Pop Warner
- Football and cheerleading.
- http://www.svpopwarner.com

Twin Creeks Sports Complex
- A for-profit park.
- http://www.twin-creeks.com/