Moose Haas
Pitcher · Career Stats, Bio & Records (1976-1987)
Moose Haas was a pitcher who played in Major League Baseball from 1976 to 1987 for the Milwaukee Brewers and the Athletics, a span of 12 seasons. Across 266 career appearances, he went 100-83 with a 4.01 ERA and 853 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 4398.0.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
- Position
- Pitcher
- Bats / Throws
- R / R
- Height / Weight
- 6'0" / 180 lb
- MLB Debut
- 1976-09-08
- Last Game
- 1987-06-19
Full name: Bryan Edmund Haas
Season-by-Season Pitching
Click a stat to plot it across every season.
| Year | Team | Lg | W | L | G | GS | CG | SHO | SV | IP | H | ER | BB | SO | ERA | Lg ERA | Pitcher PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | ML4 | AL | 0 | 1 | 5 | 2 | 0 | 0 | 0 | 16.0 | 12 | 7 | 12 | 9 | 3.94 | 3.51 (-12%) | -97.4 |
| 1977 | ML4 | AL | 10 | 12 | 32 | 32 | 6 | 0 | 0 | 197.2 | 195 | 95 | 84 | 113 | 4.33 | 4.00 (-8%) | -1396.2 |
| 1978 | ML4 | AL | 2 | 3 | 7 | 6 | 2 | 0 | 1 | 30.2 | 33 | 21 | 8 | 32 | 6.16 | 3.69 (-67%) | -105.0 |
| 1979 | ML4 | AL | 11 | 11 | 29 | 28 | 8 | 1 | 0 | 184.2 | 198 | 98 | 59 | 95 | 4.78 | 4.00 (-19%) | -2262.5 |
| 1980 | ML4 | AL | 16 | 15 | 33 | 33 | 14 | 3 | 0 | 252.1 | 246 | 87 | 56 | 146 | 3.10 | 3.84 (+19%) | 1864.6 |
| 1981 | ML4 | AL | 11 | 7 | 24 | 22 | 5 | 0 | 0 | 137.1 | 146 | 68 | 40 | 64 | 4.46 | 3.58 (-24%) | 258.0 |
| 1982 | ML4 | AL | 11 | 8 | 32 | 27 | 3 | 0 | 1 | 193.1 | 232 | 96 | 39 | 104 | 4.47 | 3.86 (-16%) | 2823.8 |
| 1983 | ML4 | AL | 13 | 3 | 25 | 25 | 7 | 3 | 0 | 179.0 | 170 | 65 | 42 | 75 | 3.27 | 3.87 (+16%) | 1684.9 |
| 1984 | ML4 | AL | 9 | 11 | 31 | 30 | 4 | 0 | 0 | 189.1 | 205 | 84 | 43 | 84 | 3.99 | 3.81 (-5%) | 1076.2 |
| 1985 | ML4 | AL | 8 | 8 | 27 | 26 | 6 | 1 | 0 | 161.2 | 165 | 69 | 25 | 78 | 3.84 | 3.89 (+1%) | 12.4 |
| 1986 | OAK | AL | 7 | 2 | 12 | 12 | 1 | 0 | 0 | 72.1 | 58 | 22 | 19 | 40 | 2.74 | 3.97 (+31%) | 1393.1 |
| 1987 | OAK | AL | 2 | 2 | 9 | 9 | 0 | 0 | 0 | 40.2 | 57 | 26 | 9 | 13 | 5.75 | 4.29 (-34%) | -853.8 |
| Career · 12 seasons | 100 | 83 | 266 | 252 | 56 | 8 | 2 | 1,655.0 | 1,717 | 738 | 436 | 853 | 4.01 | — | 4,398 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Season-by-Season Batting
Click a stat to plot it across every season.
| Year | Team | Lg | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | Lg AVG | Lg OBP | Lg SLG | Lg OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | ML4 | AL | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1977 | ML4 | AL | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1978 | ML4 | AL | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1979 | ML4 | AL | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1980 | ML4 | AL | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1981 | ML4 | AL | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1982 | ML4 | AL | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1983 | ML4 | AL | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1984 | ML4 | AL | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1985 | ML4 | AL | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1986 | OAK | AL | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 1987 | OAK | AL | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 12 seasons | 269 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | 0 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Postseason Statistics
Game Log & Splits
View full game log (535 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 135 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 134 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 133 | 844.2 | 856 | 348 | 208 | 476 | 3.71 |
| Away | 133 | 810.1 | 861 | 390 | 228 | 377 | 4.33 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 1987-06-19 | OAK | TEX | L | 5.0 | 5 | 3 | 2 | 1 | 2 | 0 |
| 1987-06-13 | OAK | TEX | — | 5.0 | 4 | 5 | 3 | 2 | 1 | 1 |
| 1987-06-06 | OAK | CLE | — | 3.0 | 8 | 4 | 4 | 0 | 3 | 1 |
| 1987-06-01 | OAK | BAL | — | 5.1 | 7 | 4 | 4 | 1 | 2 | 1 |
| 1987-05-27 | OAK | TOR | W | 6.0 | 5 | 1 | 1 | 0 | 3 | 0 |
| 1987-05-22 | OAK | BAL | L | 2.0 | 5 | 4 | 4 | 1 | 0 | 1 |
| 1987-05-16 | OAK | TOR | W | 5.0 | 9 | 3 | 3 | 2 | 0 | 2 |
| 1987-05-10 | OAK | DET | — | 4.1 | 8 | 5 | 5 | 1 | 0 | 1 |
| 1987-05-01 | OAK | DET | — | 5.0 | 6 | 0 | 0 | 1 | 2 | 0 |
| 1986-10-01 | OAK | TEX | — | 5.0 | 2 | 0 | 0 | 0 | 2 | 0 |
Fielding Statistics
Career Fielding Totals by Position
Season-by-Season Fielding
| Year | Team | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|---|
| 1976 | ML4 | P | 5 | 2 | 2 | 5 | 1 | 1 |
| 1977 | ML4 | P | 32 | 32 | 20 | 13 | 2 | 3 |
| 1978 | ML4 | P | 7 | 6 | 4 | 2 | 1 | 0 |
| 1979 | ML4 | P | 29 | 28 | 14 | 21 | 1 | 3 |
| 1980 | ML4 | P | 33 | 33 | 19 | 31 | 3 | 6 |
| 1981 | ML4 | P | 24 | 22 | 16 | 15 | 1 | 1 |
| 1982 | ML4 | P | 32 | 27 | 14 | 18 | 0 | 1 |
| 1983 | ML4 | P | 25 | 25 | 12 | 22 | 0 | 1 |
| 1984 | ML4 | P | 31 | 30 | 19 | 36 | 0 | 2 |
| 1985 | ML4 | P | 27 | 26 | 17 | 15 | 4 | 1 |
| 1986 | OAK | P | 12 | 12 | 4 | 8 | 0 | 2 |
| 1987 | OAK | P | 9 | 9 | 2 | 5 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 266 |
| Designated Hitter | 2 |
Awards & Honors
| Year | Award | Notes |
|---|---|---|
| 1983 | Player of the Week | Week of 1983-08-19 |
| 1980 | Player of the Week | Week of 1980-08-01 |
Salary History
| Year | Team | League | Salary |
|---|---|---|---|
| 1987 | OAK | AL | $578,889 |
| 1986 | ML4 | AL | $779,167 |
| 1985 | ML4 | AL | $679,167 |
| Total Career Earnings | $2,037,223 | ||
Most Similar Players
Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.
Moose Haas (highlighted) compared to peers across the same era.
Moose Haas: the record in brief
September 8, 1976 and June 19, 1987 bracket Moose Haas's time in the majors: the debut and the last game on record. By club, Haas's seasons break down as the Milwaukee Brewers (1976 to 1985) and the Oakland Athletics (1986 to 1987). Haas is listed as a pitcher at 6'0" and 180 pounds. The bio says Haas threw and hit right-handed. The recorded birth is April 22, 1956, in Baltimore, MD, USA. On the record, Moose Haas was born Bryan Edmund Haas.
Haas pitched in 266 games, starting 252, and finished with a 100-83 record and 4.01 ERA. The same table counts 853 strikeouts, 56 complete games, and 8 shutouts. Haas's 4.01 ERA was close to the 3.87 league figure for those seasons. 1980 brought Haas a season-high 16 wins. In 1980, one of the busiest seasons, Haas posted a 3.10 ERA; the league figure that year was 3.84. Haas's career Pitcher PIV, which scores run prevention against each season's league, is 4,398.0.
Most of Haas's defensive work, 266 games, came at pitcher; the rest of the position table shows designated hitter (2). On the mound, the fielding record shows 13 errors alongside 143 putouts and 191 assists.
Haas made 5 postseason pitching appearances, with a 1-2 record and 7.17 ERA. Those appearances came in 1981 and 1982.
Haas's awards table lists Player of the Week (1980 and 1983).
Frequently Asked Questions about Moose Haas
- What years did Moose Haas play?
- Moose Haas played in Major League Baseball from 1976 to 1987.
- Was Moose Haas a pitcher?
- Yes. Moose Haas pitched in the major leagues, recording 100 wins and 853 strikeouts.
- What was Moose Haas's career ERA?
- Moose Haas finished with a 4.01 career ERA, going 100-83 with 853 strikeouts.
- How many strikeouts did Moose Haas have?
- Moose Haas recorded 853 career strikeouts.
- Is Moose Haas in the Hall of Fame?
- No. Moose Haas has not been inducted into the National Baseball Hall of Fame.
- What teams did Moose Haas play for?
- Moose Haas played for the Milwaukee Brewers and the Athletics.