4/3-4/4: Track and Field: Sam Adams Combined Events Invitational Ashton Eaton, the world’s greatest all-around track-and-field athlete (no argument), will do his spring training in S.B. The Olympic decathlon champion and world record holder will compete in several events, including the long jump (his best: 27 feet) and the last event Friday, the 400 meters (he circles the track in a blazing 45 seconds). Thomas FitzSimons of the S.B. Track Club will vie for the decathlon title. The women’s heptathlon features Sharon Day-Monroe and the SBTC’s Barbara Nwaba, the 1-2 finishers in last year’s U.S. championships, and Canadian champion Brianne Theisen-Eaton, the wife of you-know-who. 11am; decathlon: noon; heptathlon: 1pm. Westmont Track and Thorrington Field, 955 La Paz Rd. Suggested donation: $10. Visit santabarbaratc.com.