Yankton Invitational Posted on: September 23, 2018 by: Lexie Cathcart Calendar When: March 9, 2019 – March 10, 2019 all-day 2019-03-09T00:00:00-07:00 2019-03-11T00:00:00-06:00 Gymnastics SGA Competitive Team competition in Yankton, SD