• 6:45 a.m. Ironman World Championship in Kona, from Hawi to Kailua-Kona. All day.
• American Legion Kona Post 20 Adopt-a-Highway trash pick-up, starting 6 a.m. at the Puapuanui Street entrance of the
Pualani Estates on Queen Kaahumanu Highway. Info: Post 20 Commander Jim Hussey, (808) 4644341 or (706) 589-0387.
• Free workshop on attention deficit hyperactivity disorder, 9 a.m. to 12 p.m. at Kanu o ka Aina New Century Public Charter School, 64-1043 Hiiaka St., Waimea. Learn the facts and characteristics of ADHD, how a diagnosis is made, treatment options, and educational interventions. Register online at hawaiilearningresource.org or at 885-9318.