In February 2017, Beard re-signed once again with the Sparks in free agency. During the 2017 season, Beard would once again start in 34 games for the second consecutive season, averaging 6.9 ppg, achieved a career-high in field goal shooting percentage and also led the league in steals, helping the Sparks to 26–8 record and the number 2 seed in the league. In September 2017, the WNBA announced that Beard won the WNBA Defensive Player of the Year, becoming only the second Sparks player after Lisa Leslie to do so. The Sparks would go on to advance to the Finals for the second season in a row, after defeating the Phoenix Mercury in a 3-game sweep, setting up a rematch with the Lynx. However, the Sparks would lose in five games, failing to win back-to-back championships.