» BMX: Registration, 4 p.m.; racing, 5 p.m., Sandbox track, Sand Island. islandbmx.org.
» Fighters Unlimited BC: Amateur bouts, 6 p.m., Kapaa Quarry Road next to All Pool & Spa, Kailua. firstname.lastname@example.org. 840-9043.
» Maui Classic: Stage Race 1, 6:30 a.m., Keokea to Kula. email@example.com.
» Honolulu Lawn Bowls Club: 10 a.m., Ala Moana Park. honolululawnbowls.com.
» Hui Wa’a: Scholarship Race, 8 a.m., Keehi Lagoon. huiwaa.com.
» 4D Barrel Race & Breakaway Roping Series: Registration, 9 a.m. Gunstock Ranch. 638-8308.
» HSCA: Alenuihaha Channel, Keokea, Hawaii, to Hana, Maui. hsca.biz.
» HPTF Spring Junior Challenge: 8 a.m., Schofield courts. hawaiitennis.org.
» Kauai Loves You: Olympic & sprint distances, 7 a.m., Kalapaki Beach. swimkauai.com.
» Honolulu Cricket Club: HPL 20/20, 10 a.m., Kapiolani Park. honolulucricketclub.org.
» Maui Classic: Stage Race 2, 6:30 a.m., Keokea/Kula. firstname.lastname@example.org.
» HMA: Kahuku Motocross Park. Gates open, 6 a.m. 668-6275. ridehma.com.
» Kaiwi Channel Relay: 8 a.m., 32 miles, Kaluakoi, Molokai, to Koko Marina, Oahu. paahawaii.com.
» Hawaii Polo Club: 2 p.m., Mokuleia Polo Grands. hawaiipoloclub.com.
» North Shore Marathon: 5:15 a.m., Haleiwa. 808racehawaii.com.
» Haleiwa 5K: 6:15 a.m., Haleiwa. 808racehawaii.com.
» Honolulu 5K for Kids: 7 a.m., Frank Fasi Civic Center. honolulu5k.org.
» Honolulu Marathon Clinic: 7:30 a.m., Kapiolani Park, across from Paki Hale. Free. Honolulumarathonclinic.org.
» HSCA: Maui Coastal, Hana to Kahului. hsca.biz.
» 27th Kaanapali Klassic: 1.2 miles, 8:30 a.m., Honoka’o Beach. 661-7255.
» HPTF Spring Junior Challenge: 8 a.m., Schofield courts.hawaiitennis.org.
Sign Me Up
» 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.
» Manoa Youth Basketball League: Registration, May 15, 9 a.m.-noon. For boys and girls, ages 6-17. Manoa Valley District Park Gym.
» Windward NJB League: Registration, 9 a.m.-noon, Sundays May 8-29, Enchanted Lake Park pavilion, & Saturday, May 21-28, June 11-25, Kaneohe District Park. Boys and girls, 8-17. Information: 721-5116 or email@example.com.
» U.S. Amateur Championship: Hawaii qualifier, men & women, May 26, Hawaiian Brian’s. $25 entry fee. Open to APA and non-APA members. Information: firstname.lastname@example.org or 520-1135.
» Hawaii Kai Dolphins Pop Warner: Registration, Today, 5-7 p.m. and May 14, 10 a.m.-1 p.m., Koko Head District Park: Information: 551-8930.
» Waterman’s Relay Race: May 7, Waikiki. $60 per three-member team. Division: Combined age of 119 and under, 120 and over, mixed gender, family teams and stand-up paddleboard. Information: Duke’s Waikiki, 922-2268.