Not quite Johnny Vander Meer, but...
Lon Warneke recently pitched a no-hitter (see the post immediately above this one). Two starts later...he pitched another one. Two no-nos in 3 starts.
Warneke has one of the all-time great baseball nicknames, of the kind that you never see anymore: The Arkansas Hummingbird. Here were his stats through the first 4 starts of the season:
4 GS, 0-4, 26.2 IP, 30 H, 12 BB, 26 R (all earned), 8.78 ERA
In his next 4 starts of the season:
4 GS, 4-0, 35 IP, 11 H (!), 6 BB, 2 R (both earned), 0.51 ERA, and the aforementioned 2 no-hitters!
Believe it, or don't!