>> Island BMX: Registration, 4 p.m., racing, 5 p.m., Sandbox Track, Sand Island. islandbmx.org
>> Palolo B.C./Kawano B.C. Smoker: 6 p.m., Palolo Gym. amateurboxingofhawaii.com
>> Honolulu Lawn Bowls Club: 10 a.m., Ala Moana Park. honolululawnbowls.com
>> HWRA Jackpot: 10 a.m., Gunstock Ranch. 668-9006. rodeooahu.com
>> Pacific Roller Derby: Scrimmage and fundraiser, 4 p.m., USCG Hideaway Club, Barbers Point. pacificrollerderby.com
>> Jacaranda 10K: 8 a.m., Eddie Tam Gym Makawao. virr.com
>> Battle of the Paddle: Opening ceremony, 9 a.m.; age-group races, 11 a.m.; elite race, 2 p.m., Waikiki Beach. battleofthepaddle.com
>> Olukai Maliko Downwinder: 8 miles, noon, Maliko Bay to Kanaha Beach, Maui. ocpaddler.com
>> HulaCross Demo Derby: 10 a.m., Kalaeloa Raceway Park. kalaeloaracewaypark.com
>> Honolulu Cricket Club: HPL 20/20, 10 a.m., Kapiolani Park.
>> Athlonia Honolulu: 2.5K run, 20K bike, 7:30 a.m., Ala Moana Beach Park. honolulutriathlon.com
>> Molokai World Championship: Surfskis, 32 miles. 11 a.m. start, Kaluakoi, Molokai. Finish, Hawaii Kai Towne Center. molokaiworldchampionships.org
>> Olukai Maliko Downwinder: 8 miles, 11 a.m., Maliko Bay to Kanaha Beach, Maui. ocpaddler.com
>> Hawaii Polo Club: 2 p.m., Mokuleia Polo Grounds. Hawaiipolo.com
>> Athlonia Honolulu: 5K & 10K, 6 a.m., Ala Moana Beach Park. honolulutriathlon.com
>> Honolulu Marathon Clinic: 7:30 a.m., Kapiolani Park, across from Paki Hale. Free. Honolulumarathonclinic.org
>> Battle of the Paddle: Hawaii Kai to Waikiki, 11 a.m.; keiki races, 2 p.m.; surf team relays, 3 p.m. battleofthepaddle.com
>> Athlonia Honolulu: 3.8K, 8 a.m., Ala Moana Beach Park. honolulutriathlon.com
>> Athlonia Honolulu: Olympic, sprint, junior, youth & kids divisions, 6-10:30 a.m., Ala Moana Beach Park. honolulutriathlon.com
>> Menehune Marchers: Mililani Hui Hele, 5K and 10K. 7:30 a.m., Mililani Mauka Park & Ride. 626-3676. ava.org/clubs/menehunemarchers/
SIGN ME UP
>> Vulcans-Hawaii School:1-4 p.m., May 31-June 3, UHH baseball and softball fields. Ages 5-12. $90. Deadline: May 24. Information: Joey Estrella, 974-7700.
>> Hui O Momilani Basketball Clinic: Featuring Dennis Agena of Kalakaua Clinic, Mike Taylor, formerly of Punahou School, and current University of Hawaii basketball players and benefiting educational programs, May 21 at Pearl City High School gym — grades 1-3 from 8:30-11:30 a.m.; grades 4-6 from 12:30 to 3:30 p.m. Cost: $50 (includes t-shirt). Information: email@example.com.
>> Manoa Youth Basketball League: Registration, Sunday 9 a.m.-noon. For boys and girls, ages 6-17. Manoa Valley District Park Gym.
>> Kailua Community Basketball League: Enchanted Lake Park pavilion. 1-3 p.m. Saturdays through May 28. Ages 7-17. Bring copy of birth certificate and medical insurance card. Information: 216-8103, 352-1364 or 221-0553.
>> Windward NJB Basketball League: Registration 9am-noon, Sundays through May 29, Enchanted Lake Park Pavilion; & Saturdays May 21, 28, June 11, 25, Kaneohe District Park Lounge. Boys and girls, ages 8-17. Information: 721-5116 or firstname.lastname@example.org.
>> 17th Annual Hawaii Baptist Academy Eagle Hoop Camp: June 7-10, HBA Gym. With former UHH coach Jimmy Yagi and all-star guard Bill O’Rear. Boys & girls entering grades 4-12. Sessions 8;30-1130 a.m. for grades 4-8, 12:30 p.m.-3:30 p.m. for grades 8-12. Information: 564-0327 or Keith Sugiura at email@example.com.
>> 11th Sole Fundamentals Camp: June 27-30, Manoa Valley District Park gym. Girls and boys, grades 4-12. $90. Funds benefit La Pietra athletic department. 282-8300. solefundamentals.com.
>> Eastside Juniors League: Registration, 9-11 a.m., May 28, K-Bay Lanes. League starts June 4. Information: Jodi Beaty, firstname.lastname@example.org.