| Starter | Tm | Tier | Game |
|---|---|---|---|
| Randy Johnson | ARI | 9 | 199907200_ARI_SEA |
| Mike Mussina | BAL | 3.38 | 199907210_BAL_BOS |
| Andy Ashby | SDN | 3.3 | 199907200_SDN_ANA |
| Ismael Valdez | LAN | 2.96 | 199907210_COL_LAN |
| Greg Maddux | ATL | 2.61 | 199907210_ATL_MIA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Steve Trachsel | CHN | -2.85 | 199907190_KCA_CHN |
| Jay Witasick | KCA | -2.5 | 199907190_KCA_CHN |
| Jeff Fassero | SEA | -2.1 | 199907210_OAK_SEA |
| Darryl Kile | COL | -1.72 | 199907200_COL_OAK |
| Jose Silva | PIT | -1.6 | 199907190_LAN_PIT |
Based on accumulated WAA for this season up to 1999-07-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 7.99 | Randy Johnson | 169.7 | ARI |
| +004+ | 7.31 | Pedro Martinez | 136.3 | BOS |
| +006+ | 6.28 | Curt Schilling | 158.7 | PHI |
| +008+ | 6.14 | David Cone | 122.3 | NYA |
| +009+ | 6.06 | Mike Hampton | 134.3 | HOU |
| +012+ | 5.29 | Jose Lima | 146.3 | HOU |
| +014+ | 5.13 | Andy Ashby | 120 | SDN |
| +023+ | 4.69 | Mike Mussina | 144 | BAL |
| +024+ | 4.48 | Mike Sirotka | 125.3 | CHA |
| +027+ | 4.26 | Jon Lieber | 117.3 | CHN |
| +028+ | 4.22 | Russ Ortiz | 131.7 | SFN |
| +031+ | 4.16 | Kevin Millwood | 124 | ATL |
| +033+ | 3.93 | Ismael Valdes | 131 | LAN |
| +034+ | 3.85 | Bret Saberhagen | 73.7 | BOS |
| +036+ | 3.81 | Alex Fernandez | 86.3 | MIA |
| +042+ | 3.63 | Greg Maddux | 138.3 | ATL |
| +047+ | 3.41 | Jose Rosado | 118.3 | KCA |
| +049+ | 3.33 | Tim Hudson | 54.3 | OAK |
| +050+ | 3.32 | Sidney Ponson | 130 | BAL |
| +051+ | 3.32 | Brad Radke | 130.3 | MIN |
| +052+ | 3.3 | Pete Harnisch | 113 | CIN |
| +058+ | 3.17 | Kevin Brown | 145 | LAN |
| +061+ | 3.08 | Omar Olivares | 126.3 | ANA |
| +062+ | 3.03 | John Halama | 92.7 | SEA |
| +066+ | 2.98 | Jeff Suppan | 125.7 | KCA |
_