Season Leaders (Pitching)                              
  ERA   Wins   Strikeouts    
  AL NL   AL NL   AL NL      
1997 Randy Johnson, SEA 2.28 Pedro Martinez, MON 1.90 1997 Brad Radke, MIN
Randy Johnson, SEA
20 Denny Neagle, ATL 20 1997 Randy Johnson, SEA 291 Curt Schilling, PHI 319  
1998 Pedro Martinez, BOS 2.89 Greg Maddux, ATL 2.22 1998 David Cone, NYY
Rick Helling, TEX
20 Tom Glavine, ATL 20 1998 Pedro Martinez, BOS 251 Curt Schilling, PHI 300  
1999 Pedro Martinez, BOS 2.07 Randy Johnson, ARI 2.48 1999 Pedro Martinez, BOS 23 Mike Hampton, HOU 22 1999 Pedro Martinez, BOS 313 Randy Johnson, ARI 364  
2000 Pedro Martinez, BOS 1.74 Kevin Brown, LAD 2.58 2000 Tim Hudson, OAK
David Wells, TOR
20 Tom Glavine, ATL 21 2000 Pedro Martinez, BOS 284 Randy Johnson, ARI 347  
2001 Freddy Garcia, SEA 3.05 Randy Johnson, ARI 2.49 2001 Mark Mulder, OAK 21 Matt Morris, STL
Curt Schilling, ARI
22 2001 Hideo Nomo, BOS 220 Randy Johnson, ARI 372  
2002 Pedro Martinez, BOS 2.26 Randy Johnson, ARI 2.32 2002 Barry Zito, OAK 23 Randy Johnson, ARI 24 2002 Pedro Martinez, BOS 239 Randy Johnson, ARI 334  
2003 Pedro Martinez, BOS 2.22 Jason Schmidt, SFG 2.34 2003 Roy Halladay, TOR 22 Russ Ortiz, ATL 21 2003 Esteban Loaiza, CHW 207 Kerry Wood, CHC 266  
2004 Johan Santana, MIN 2.61 Jake Peavy, SDP 2.27 2004 Curt Schilling, BOS 21 Roy Oswalt, HOU 20 2004 Johan Santana, MIN 265 Randy Johnson, ARI 290  
2005 Kevin Millwood, CLE 2.86 Andy Pettite, HOU 2.39 2005 Bartolo Colon, LAA 21 Dontrelle Willis, FLA 22 2005 Johan Santana, MIN 238 Jake Peavy, SDP 216