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Roberto Hernandez played 17 major-league seasons (1991-2007) as a P (1,010). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 1 season lines
| Year | Age | Team | G | AB | R | H | HR | RBI | SB | BB | SO | AVG | OPS | OPS+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | 33 | SFN | 28 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | .500 | 1.000 | 172 |
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991 | 27 | CHA | 9 | 3 | 1 | 0 | 0 | 15 | 6 | 7 | 7.80 | 52 |
| 1992 | 28 | CHA | 43 | 0 | 7 | 3 | 12 | 71 | 68 | 20 | 1.65 | 239 |
| 1993 | 29 | CHA | 70 | 0 | 3 | 4 | 38 | 78.2 | 71 | 20 | 2.29 | 189 |
| 1994 | 30 | CHA | 45 | 0 | 4 | 4 | 14 | 47.2 | 50 | 19 | 4.91 | 98 |
| 1995 | 31 | CHA | 60 | 0 | 3 | 7 | 32 | 59.2 | 84 | 28 | 3.92 | 120 |
| 1996 | 32 | CHA | 72 | 0 | 6 | 5 | 38 | 84.2 | 85 | 38 | 1.91 | 261 |
| 1997 | 33 | CHA | 46 | 0 | 5 | 1 | 27 | 48 | 47 | 24 | 2.44 | 187 |
| 1997 | 33 | SFN | 28 | 0 | 5 | 2 | 4 | 32.2 | 35 | 14 | 2.48 | 169 |
| 1998 | 34 | TBA | 67 | 0 | 2 | 6 | 26 | 71.1 | 55 | 41 | 4.04 | 115 |
| 1999 | 35 | TBA | 72 | 0 | 2 | 3 | 43 | 73.1 | 69 | 33 | 3.07 | 158 |
| 2000 | 36 | TBA | 68 | 0 | 4 | 7 | 32 | 73.1 | 61 | 23 | 3.19 | 154 |
| 2001 | 37 | KCA | 63 | 0 | 5 | 6 | 28 | 67.2 | 46 | 26 | 4.12 | 108 |
| 2002 | 38 | KCA | 53 | 0 | 1 | 3 | 26 | 52 | 39 | 12 | 4.33 | 103 |
| 2003 | 39 | ATL | 66 | 0 | 5 | 3 | 0 | 60 | 45 | 43 | 4.35 | 98 |
| 2004 | 40 | PHI | 63 | 0 | 3 | 5 | 0 | 56.2 | 44 | 29 | 4.76 | 90 |
| 2005 | 41 | NYN | 67 | 0 | 8 | 6 | 4 | 69.2 | 61 | 28 | 2.58 | 163 |
| 2006 | 42 | PIT|NYN | 68 | 0 | 0 | 3 | 2 | 63.2 | 48 | 32 | 3.11 | 144 |
| 2007 | 43 | CLE | 28 | 0 | 3 | 1 | 0 | 26 | 18 | 16 | 6.23 | 72 |
| 2007 | 43 | LAN | 22 | 0 | 0 | 2 | 0 | 20.1 | 13 | 9 | 6.64 | 67 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 1991 | P | 9 | 3 | 0 | 2 | 0 | 0 |
| 1992 | P | 43 | 0 | 7 | 4 | 1 | 1 |
| 1993 | P | 70 | 0 | 2 | 11 | 1 | 1 |
| 1994 | P | 45 | 0 | 0 | 2 | 1 | 0 |
| 1995 | P | 60 | 0 | 2 | 5 | 1 | 0 |
| 1996 | P | 72 | 0 | 3 | 6 | 1 | 0 |
| 1997 | P | 74 | 0 | 4 | 10 | 1 | 1 |
| 1998 | P | 67 | 0 | 4 | 9 | 1 | 0 |
| 1999 | P | 72 | 0 | 4 | 10 | 1 | 1 |
| 2000 | P | 68 | 0 | 4 | 11 | 1 | 1 |
| 2001 | P | 63 | 0 | 3 | 6 | 0 | 0 |
| 2002 | P | 53 | 0 | 6 | 4 | 1 | 1 |
| 2003 | P | 66 | 0 | 3 | 11 | 1 | 1 |
| 2004 | P | 63 | 0 | 8 | 11 | 1 | 0 |
| 2005 | P | 67 | 0 | 1 | 16 | 0 | 1 |
| 2006 | P | 68 | 0 | 1 | 5 | 2 | 0 |
| 2007 | P | 50 | 0 | 1 | 4 | 3 | 0 |
Team codes are the source codes (e.g. NYN for the New York Mets, BS1 for the 1875 Boston club). OPS+ is league-season normalized, not park-adjusted; unrecorded source values (such as RBI in the earliest recorded seasons) are absent, never zero-filled.
MVP, Cy Young and Rookie of the Year voting history (2 ballot finishes, 0 wins). Full year pages: 1999, 1996.
| Year | Award | Lg | Rank | Points | First-place votes |
|---|---|---|---|---|---|
| 1996 | Cy Young Award | AL | 7 | 1 / 140 | 0 |
| 1999 | Cy Young Award | AL | 11 | 1 / 140 | 0 |
Roberto Hernandez ranks on 2 all-time single-season position leaderboards (1871-2025, league-season-normalized OPS+ / ERA+).
Every career total and season line is computed from the SABR / Sean Lahman baseball database (2025 edition, CC BY-SA 3.0), the same source behind our historical position leaderboards. Rate stats use league-season normalization only (OPS+ and ERA+ as marked, never park-adjusted); unrecorded early-era values stay absent rather than being invented. Career totals sum only what the source records.
Award winners and MVP / Cy Young / Rookie of the Year voting history come from the same database; the year pages live under MLB award voting history. Official transactions (2011 to the current season) come from the MLB StatsAPI feed on our transactions archive.