| Starter | Tm | Tier | Game |
|---|---|---|---|
| Roy Halladay | PHI | 10.5 | 201004260_PHI_SFN |
| Felix Hernandez | SEA | 5.83 | 201004260_SEA_KCA |
| Johan Santana | NYN | 5.08 | 201004271_LAN_NYN |
| Zack Greinke | KCA | 3.87 | 201004270_SEA_KCA |
| Ubaldo Jimenez | COL | 3.25 | 201004270_ARI_COL |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Charlie Morton | PIT | -4.56 | 201004250_PIT_HOU |
| Gio Gonzalez | OAK | -2.58 | 201004250_CLE_OAK |
| Homer Bailey | CIN | -2.16 | 201004250_SDN_CIN |
| Ian Snell | SEA | -1.94 | 201004270_SEA_KCA |
| Brian Bannister | KCA | -1.76 | 201004250_MIN_KCA |
Based on accumulated WAA for this season up to 2010-04-27.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 2.68 | Ubaldo Jimenez | 34.3 | COL |
| +002+ | 2.35 | Livan Hernandez | 31 | WAS |
| +003+ | 2.31 | Roy Halladay | 40 | PHI |
| +004+ | 2.15 | Francisco Liriano | 29 | MIN |
| +006+ | 2.05 | Brad Penny | 28.7 | SLN |
| +007+ | 2.03 | Mike Pelfrey | 26 | NYN |
| +008+ | 2.01 | Andy Pettitte | 28 | NYA |
| +009+ | 1.99 | Tim Lincecum | 27 | SFN |
| +011+ | 1.81 | Barry Zito | 27.3 | SFN |
| +013+ | 1.76 | John Danks | 29 | CHA |
| +015+ | 1.74 | Felix Hernandez | 36.3 | SEA |
| +016+ | 1.73 | Adam Wainwright | 32 | SLN |
| +017+ | 1.65 | Doug Fister | 27 | SEA |
| +018+ | 1.64 | Ricky Romero | 30 | TOR |
| +020+ | 1.54 | Carlos Silva | 26 | CHN |
| +021+ | 1.47 | C.J. Wilson | 25.7 | TEX |
| +024+ | 1.39 | Johan Santana | 30.3 | NYN |
| +026+ | 1.37 | Mitch Talbot | 26.3 | CLE |
| +025+ | 1.37 | Justin Duchscherer | 24.7 | OAK |
| +028+ | 1.31 | Jonathan Sanchez | 24.3 | SFN |
| +030+ | 1.29 | Matt Garza | 29 | TBA |
| +033+ | 1.26 | David Price | 28.7 | TBA |
| XXXXX | 1.24 | Jered Weaver | 32 | ANA |
| XXXXX | 1.16 | Zack Greinke | 31.7 | KCA |
| XXXXX | 1.15 | Jaime Garcia | 19 | SLN |
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