Championship
The Finals
Halloween Classic
Winter Challenge
MLK Classic
Presidents Day Classic
National Showdown
Memorial Day Challenge
Nationals 2025
Fall Kickoff
The Launch
On the Edge
Invitational
Pinnacle
Above the Rim
King of the Coast
The Battle
Spring Hoopfest
Extravaganza
Summer Hustle
Back to School Takeoff
Summer Showdown
Bay Breeze
Capital Clash 2024
Rumble in the Town
Hoop Havoc
Holiday Classic
New Years Bash
Battle at the Bay
The Frost 2025
Golden Gate Classic
The Mayhem
NorCal Clash
Gold Rush
Summer Slam
The Crown
King of the Town 2025
Desert Show
Crown City Classic
The Bowl
On the Line
Sunset Showdown
Summer Sizzle 2025
June Boom 2025
In the Zone 2025
Sunset Shake-up 2025
Valley Vengeance
Battle in the Valley
America’s Finest
Big Showdown
SD Havoc
Stampede
Valley of the Sun
G365 Buzzer Beater 2025
Canyon Clash
Dance in the Desert
The Rise
Emerald City Classic
Winter Hoops Frenzy 2024
Winter Jam 2025
Spring Showers
Evergreen
Jet City
Sea-Town Slam
Neon City
Vegas Marquee
High Desert Showdown 2025
Texas Brawl
Best of Texas Showdown
Holiday Hoops
MLK Elite Showdown 2025
Cookout
Best Out West 2025
Diamond State Classic 2025
Chi City Hoops 2025
October 23-24, 2021
October 13, 202110 days prior to tournament.
Open Gym Premier, Anaheim, CA
Grassroots 365 features event coverage, player profile stats and team and individual awards. Our tournaments attract elite level competition and provide multiple boys and girls divisions.
Grassroots 365 hires quality CIF and NCAA Certified officials as well as certified athletic trainers for all events. Our Orange County facility has food and beverage in the Cafe at Open Gym Premier.
Stay at a TOP TIER Radisson property, located directly across the street from Open Gym Premier- a 3 minute walk away! The brand-new Radisson Blu Anaheim is the first Blu-tier property on the West Coast. Rates for Open Gym Premier/Grassroots365 event guests start at $125/night – an incredible rate while availability lasts.
Parking: Self-Parking Rate is complimentary (1 Car per room)
Grab and Go Breakfast is included in the Sleeping Room Rate.
Ayres Hotel Anaheim Offers:
You’ll enjoy all the comforts of home in our spacious Studio Suites that come with refrigerator, microwave, and flat-screen TV with Wi-Fi. Relax by our outdoor heated pool & jacuzzi or BBQ with the family. Complimentary fitness center and coin laundry facilities onsite.
Our Candlewood Suites Anaheim Resort Area offers:
We offer fully equipped kitchens (w/full refrigerator, microwave, two burner stove, dishwasher and all of the pots/pans and cutlery you will need to feel right at home. We also have an outdoor therapeutic pool, Weber BBQ’s and an air-conditioned lanai space, across from the pool!
Cambria Hotel & Suites Anaheim Resort Area is ideally situated in the heart of the Anaheim Resort District, one mile from Disneyland and California Adventure, Downtown Disney, and Anaheim Convention Center as well as walking distance to Open Premier Gym Tournaments.
We believe in making your stay as exciting as your visit. That’s why the all-new Cambria Hotel & Suites Anaheim – Resort Area has been designed with our fun-loving guests in mind, and features a 30,000 square foot waterpark, a putting green, outdoor movie wall, sport court, and more. OGP rates include valet parking for up to one vehicle per room. Breakfast and WiFi are included in the rate.
All guest rooms have fridge, microwave, in room coffee, and two showers in every bathroom (1-tub/shower combo and 1- walk in shower).
Standard King or 2 doubles w/complementary parking
*Rates and room types are subject to availability. Reservations must be received no later than the cut-off date of 30 days prior to each tournament. After this date the hotel will continue to accept reservations on a space and rate available basis only.
Just 4 minutes away from the Open Gym Premier facility and directly across the street from the Anaheim GardenWalk which features; 16 unique restaurants and entertainment venues including; Bowlmor Lanes, AMC Theater, PF Chang’s, Cheesecake Factory, Bubba Gump Shrimp and the House of Blues.1640 South Clementine St. • Anaheim, CA 92802 • 714-598-0600
General Information Game Rules Certification Rules Certification Birthdates
Tournament Rules