P · 11 seasons · 1997 – 2007 · B/T: R/R
Antonio Alfonseca ranks 1st of 0 pitchers by career roto value, one of the highest totals the site records. His best year was 2000: +6.7 roto value, 34th that season and 3422nd of 51,303 player-seasons on record. He banked roto value in saves (+15.1) and ERA (+2.2) and gave it back in strikeouts (-3.5) and WHIP (-3.5).
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1997 | FLA | 17 | -2.27 | #936 | #84,566 |
| 1998 | FLA | 58 | -2.27 | #996 | #84,375 |
| 1999 | FLA | 73 | -2.22 | #960 | #79,176 |
| 2000 | FLA | 68 | -2.15 | #628 | #71,471 |
| 2001 | FLA | 58 | -2.13 | #621 | #68,561 |
| 2002★ | CHC | 66 | -1.92 | #497 | #49,035 |
| 2003 | CHC | 60 | -2.13 | #599 | #68,222 |
| 2004 | ATL | 79 | -2.15 | #884 | #72,662 |
| 2005 | FLA | 33 | -2.10 | #572 | #64,808 |
| 2006 | TEX | 19 | -2.08 | #573 | #62,707 |
| 2007 | PHI | 61 | -2.11 | #949 | #65,414 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1997 | FLA | 17 | -2.32 | #375 | #36,346 |
| 1998 | FLA | 58 | 0.24 | #191 | #17,412 |
| 1999 | FLA | 73 | 3.85 | #82 | #7,430 |
| 2000★ | FLA | 68 | 6.66 | #34 | #3,422 |
| 2001 | FLA | 58 | 4.25 | #70 | #6,682 |
| 2002 | CHC | 66 | 1.85 | #142 | #12,021 |
| 2003 | CHC | 60 | -2.02 | #397 | #31,964 |
| 2004 | ATL | 79 | 1.78 | #140 | #12,218 |
| 2005 | FLA | 33 | -2.12 | #409 | #33,382 |
| 2006 | TEX | 19 | -2.70 | #530 | #42,040 |
| 2007 | PHI | 61 | -1.06 | #313 | #23,781 |
★ Best season by Z