Here is Beeker's MiLB page and a screen grab of his first five starts: Beeker has faced 127 batters and has a respectable 7.16 K/9 and 20.5% K rate. His first five starts put him within the top ten best starters in the 16-team Midwest League so far (there are a few guys in other orgs really dominating, however). You could also argue that Beeker's worst inning so far in 2017 was the first inning of the first game, when he gave up three hits, a walk, and a run.