In the only 2 full seasons of Richards' career (2014-2015), he led the league in wild pitches (39 total), both years. He also had 12 HBP.
Later, in one of his partial seasons, he led the league again with 15 WPs while starting only 16 games (2018)!
BTW, from 2014-2017:
29-21 (70 GS) 3.06 (1.148 WHIP)
His 80 ERA- placed him 20th among starters with 400+ IP in those 4 years.