Mason Thompson posted a 1.89 ERA, a 2.47 FIP, one walk, 17 strikeouts, and a .194/.217./313 line against in 11 games and 19 innings pitched in April. By the end of May, his ERA was up to 4.76, with a 4.00 FIP and a .252/.316/.383 line against in 21 games and 28 1⁄3 IP on the year, following a 10-game stretch in which he put up a 10.61 ERA, a 7.11 FIP, and a .350/.458/.500 line against in 9 1⁄3 IP.
Thompson, 25, bounced back with a strong month of June (in which he posted a 0.