P · 5 seasons · 2004 – 2010 · B/T: L/L
Gustavo Chacin was worth +1.7 in wins alone, more than his entire career total of -1.1 once everything else is counted against him. No season of his scores higher than 2005, at +3.9, 88th that season and 7242nd of 51,303 player-seasons on record. On the credit side, wins (+1.7) and ERA (+0.3). On the debit side, WHIP (-1.1) and strikeouts (-0.7).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2004 | TOR | 2 | -2.12 | #583 | #67,132 |
| 2005 | TOR | 34 | -2.34 | #1,102 | #91,271 |
| 2006 | TOR | 17 | -2.08 | #573 | #62,707 |
| 2007 | TOR | 5 | -2.07 | #599 | #60,533 |
| 2010★ | HOU | 44 | -1.81 | #485 | #46,606 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2004 | TOR | 2 | -1.04 | #288 | #23,633 |
| 2005★ | TOR | 34 | 3.94 | #88 | #7,242 |
| 2006 | TOR | 17 | 0.03 | #227 | #18,299 |
| 2007 | TOR | 5 | -1.61 | #362 | #27,515 |
| 2010 | HOU | 44 | -2.40 | #484 | #37,615 |
★ Best season by Z