P · 13 seasons · 2001 – 2013 · B/T: R/R
Few careers score higher: Roy Oswalt sits 1st of 0 pitchers all-time in roto value, built over 13 seasons. His best year was 2010: +11.5 roto value, 5th that season and 650th of 51,303 player-seasons on record. The value came from wins (+25.0), strikeouts (+23.9) and ERA (+21.5), with no category working against him.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2001 | HOU | 28 | -2.36 | #1,096 | #92,333 |
| 2002 | HOU | 35 | -3.21 | #1,209 | #109,904 |
| 2003 | HOU | 21 | -2.43 | #1,137 | #96,396 |
| 2004 | HOU | 36 | -3.05 | #1,227 | #108,960 |
| 2005 | HOU | 35 | -2.92 | #1,201 | #107,877 |
| 2006 | HOU | 35 | -2.66 | #1,187 | #103,966 |
| 2007 | HOU | 33 | -3.08 | #1,265 | #109,133 |
| 2008 | HOU | 32 | -2.26 | #1,147 | #84,150 |
| 2009 | HOU | 30 | -2.79 | #1,229 | #106,254 |
| 2010 | HOU | 35 | -2.93 | #1,221 | #107,923 |
| 2011 | PHI | 24 | -2.83 | #1,262 | #106,785 |
| 2012 | TEX | 17 | -2.13 | #610 | #68,982 |
| 2013★ | COL | 9 | -2.04 | #564 | #55,510 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2001 | HOU | 28 | 8.60 | #23 | #1,853 |
| 2002 | HOU | 35 | 11.32 | #8 | #714 |
| 2003 | HOU | 21 | 5.66 | #52 | #4,539 |
| 2004 | HOU | 36 | 10.97 | #11 | #797 |
| 2005 | HOU | 35 | 11.27 | #8 | #724 |
| 2006 | HOU | 33 | 11.45 | #4 | #671 |
| 2007 | HOU | 33 | 8.19 | #31 | #2,123 |
| 2008 | HOU | 32 | 9.33 | #20 | #1,456 |
| 2009 | HOU | 30 | 4.53 | #79 | #6,203 |
| 2010★ | HOU | 33 | 11.51 | #5 | #650 |
| 2011 | PHI | 23 | 1.92 | #142 | #11,816 |
| 2012 | TEX | 17 | -2.19 | #466 | #34,402 |
| 2013 | COL | 9 | -4.29 | #668 | #50,323 |
★ Best season by Z