Baseball Top 10 Rankings 2018 Baseball Top 10 Rankings February 27 March 6 March 13 March 20 March 27 April 3 April 10 April 17 April 24 May 1 (Final Regular Season) May 29 (Final Postseason) Ranking Process: The NCCAA Top 10 Rankings are developed by the National Sport Chair and Regional Sport Chairs who represent each region. Regional Sport Chairs develop a ranking for their region. Based on each regional ranking, Regional Sport Chairs then rank teams on a national level. The National Sport Chair then compiles the national ranking based on points from each team's ranking on the Regional Sport Chairs' national ballots. See 2017-18 Top 10 Rankings for all sports here. See Top 10 Rankings archives here.