The 10th annual IBWAA season awards election was held in September with 141 members participating.
2018 season a winners are as follows:
AL MVP: Mookie Betts, Boston Red Sox
NL MVP: Christian Yelich, Milwaukee Brewer
AL Cy Young: Blake Snell, Tampa Bay Rays
NL Cy Young: Jacob deGrom, New York Mets
AL Rookie: Shohei Ohtani, Los Angeles Angels of Anaheim
NL Rookie: Ronald Acuna Jr., Atlanta Braves
AL Manager: Bob Melvin, Oakland Athletics
NL Manager: Brian Snitker, Atlanta Braves
AL Rollie Fingers Relief Pitcher: Edwin Diaz, Seattle Mariners
NL Hoyt Wilhelm Relief Pitcher: Josh Hader, Milwaukee Brewers