2.50 ERA or lower, 4+ SO/BB, 1.00 WHIP or lower, 8+ SO/9, 30+ IP (2011)
Michael Pineda (Mariners)
Roy Halladay (Phillies)
Jered Weaver (Angels)
Dan Haren (Angels)
Pineda is a 22 year old rookie who has been dominating, especially in his last few starts. His ERA went all the way up to 2.84 after his May 10th outing against the Orioles (6 IP, 3 ER), but his been lowered to 2.16 after his last two starts (2-0, 14 IP, 0 ER, 16 SO, 1 BB, 5 H). Of this impressive group, he is tied for the more wins (6), has the highest W-L% (.750) and has the highest SO/9 (9.51).
2.50 ERA or lower, 4+ SO/BB, 1.00 WHIP or lower, 8+ SO/9, 125+ IP (1900-2010)
1965 Sonny Siebert (Indians)
1963-1966 Sandy Koufax (Dodgers)
1971 Tom Seaver (Mets)
1986 Mike Scott (Astros)
1997, 1999, 2000, 2002 Pedro Martinez (Red Sox)
2003 Jason Schmidt (Giants)
Sonny Siebert had a solid ML career (140-114, 3.21 ERA, 2 All-Star appearances, 307 starts), but his 1965 season was an abberation for him. He followed up his stellar 1965 season (16-8, 2.43 ERA, 9.1 SO/9, 4.15 SO/BB) with an other gem in 1966 (16-8, 2.80 ERA), but he never replicated the strikeouts, dropping down to 6.1 SO/9 in 1966 and never went over 7 SO/9 in a full season.
It's too bad that he had his best season in 1965, because there was still only 1 Cy Young Award for the entire league in 1965, and he couldn't compete with Sandy Koufax (Cy Young Awards for each league did not start until 1967). He might have received some votes for an AL Cy Young award, although he probably wouldn't have won (it likely would have gone to Mudcat Grant, Mel Stottlemyre or Sam McDowell).