Pete O'Brien
1982–1993 · 12 seasons · Bats left, throws left · Born 1958
More than one Major Leaguer has this name. This page is the Pete O'Brien who played 1982–1993. The others:
JavaScript is switched off, so the extra columns cannot be unfolded. Every season below is already on the page and every number in it is real.
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Hitting
| Season | Team | Lg | G | PA | AB | R | H | 2B | 3B | HR | RBI | BB | SO | SB | AVG | OBP | SLG | OPS | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1982 | Texas Rangers | AL | 20 | 74 | 67 | 13 | 16 | 4 | 1 | 4 | 13 | 6 | 8 | 1 | .239 | .297 | .507 | .805 | 0.3 |
| 1983 | Texas Rangers | AL | 154 | 588 | 524 | 53 | 124 | 24 | 5 | 8 | 53 | 58 | 62 | 5 | .237 | .313 | .347 | .660 | 0.2 |
| 1984 | Texas Rangers | AL | 142 | 581 | 520 | 57 | 149 | 26 | 2 | 18 | 80 | 53 | 50 | 3 | .287 | .348 | .448 | .796 | 2.3 |
| 1985 | Texas Rangers | AL | 159 | 655 | 573 | 69 | 153 | 34 | 3 | 22 | 92 | 69 | 53 | 5 | .267 | .342 | .452 | .794 | 1.9 |
| 1986 | Texas Rangers | AL | 156 | 641 | 551 | 86 | 160 | 23 | 3 | 23 | 90 | 87 | 66 | 4 | .290 | .385 | .468 | .854 | 3.7 |
| 1987 | Texas Rangers | AL | 159 | 638 | 569 | 84 | 163 | 26 | 1 | 23 | 88 | 59 | 61 | 0 | .286 | .348 | .457 | .805 | 2.3 |
| 1988 | Texas Rangers | AL | 156 | 628 | 547 | 57 | 149 | 24 | 1 | 16 | 71 | 72 | 73 | 1 | .272 | .352 | .408 | .760 | 2.7 |
| 1989 | Cleveland Indians | AL | 155 | 646 | 554 | 75 | 144 | 24 | 1 | 12 | 55 | 83 | 48 | 3 | .260 | .356 | .372 | .727 | 1.6 |
| 1990 | Seattle Mariners | AL | 108 | 417 | 366 | 32 | 82 | 18 | 0 | 5 | 27 | 44 | 33 | 0 | .224 | .308 | .314 | .622 | -0.7 |
| 1991 | Seattle Mariners | AL | 152 | 617 | 560 | 58 | 139 | 29 | 3 | 17 | 88 | 44 | 61 | 0 | .248 | .300 | .402 | .701 | 0.1 |
| 1992 | Seattle Mariners | AL | 134 | 444 | 396 | 40 | 88 | 15 | 1 | 14 | 52 | 40 | 27 | 2 | .222 | .289 | .371 | .660 | -0.2 |
| 1993 | Seattle Mariners | AL | 72 | 239 | 210 | 30 | 54 | 7 | 0 | 7 | 27 | 26 | 21 | 0 | .257 | .335 | .390 | .725 | 0.6 |
| Career | 12 seasons | 1567 | 6168 | 5437 | 654 | 1421 | 254 | 21 | 169 | 736 | 641 | 563 | 24 | .261 | .340 | .409 | .749 | 14.7 | |
The WAR columns are worked out on this site — they are not part of the source data, and they will not match Baseball-Reference exactly.
Everything else on this page comes straight from the Lahman database. WAR is our own calculation from those same season lines: fielding is estimated from putouts and assists rather than measured, fielding innings are missing before 1954, and the fielding component is capped. Treat it as a reasonable estimate of value, not as a record. The season tool explains the method in full.
— means the value is not in the source for that season, which is not the same as zero. In the Career and Subtotal rows it marks a statistic that cannot be added up across seasons — wOBA and FIP both need league constants that change every year, so we leave them blank rather than invent one. Leagues on this page: AL (American League).
Data for 1871 to 2025: Lahman Baseball Database 2025, compiled by SABR (Society for American Baseball Research) and licensed under CC BY-SA 3.0 Unported. Negro Leagues data licensed from Seamheads.com and included under SABR major-league recommendations (2021-02-11, 2024-06-03). The season lines on this page are our own derivative of that database — the WAR columns are computed here — and they are published under the same CC BY-SA 3.0 Unported licence, as ShareAlike requires. That database is published once a season is complete, so the 2026 figures on this site come from a different place: the MLB Stats API, whose notice reads “Copyright 2026 MLB Advanced Media, L.P. Use of any content on this page acknowledges agreement to the terms posted here http://gdx.mlb.com/components/copyright.txt”. Those numbers are MLB Advanced Media, L.P.’s, not SABR (Society for American Baseball Research)’s, and they carry that notice rather than the CC BY-SA 3.0 Unported licence above. Not affiliated with, endorsed by, or connected to Major League Baseball or any of its clubs.