Duke Maas
Detroit Tigers 1955–1957; Kansas City Athletics 1958; New York Yankees 1958–1961
Percentile snapshot
1958 season — qualified pitchers
of 54 qualified 1958 pitchers (min 156 IP)
Career, era-adjusted
sWAR measured against every career in history, 24,011 of them. Only era-adjusted career stats carry a percentile — a raw career total gets a rank instead, because pooling the 1890s with the 2020s is a choice, not a measurement.
Season by season
Batting
| Season | G | PA | AB | R | H | 2B | 3B | HR | RBI | BB | SO | SB | CS | BA | OBP | SLG | OPS | wRC+ | OPS+ | wOBA | sWAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1955 | 18 | 33 | 30 | 2 | 5 | 0 | 1 | 0 | 2 | 1 | 12 | 0 | 0 | .167 | .194 | .233 | .427 | 5.8 | 16.1 | .201 | -0.1 |
| 1956 | 26 | 18 | 16 | 1 | 3 | 1 | 0 | 0 | 1 | 2 | 8 | 0 | 1 | .188 | .278 | .250 | .528 | 42.8 | 41.5 | .260 | -1.0 |
| 1957 | 45 | 81 | 71 | 2 | 6 | 1 | 0 | 1 | 8 | 3 | 27 | 0 | 0 | .085 | .118 | .141 | .259 | -48.7 | -29.6 | .123 | 3.2 |
| 1958 | 32 | 57 | 51 | 5 | 6 | 2 | 0 | 0 | 2 | 4 | 16 | 0 | 0 | .118 | .182 | .157 | .339 | -11.1 | -5.3 | .168 | 1.1 |
| 1959 | 38 | 49 | 40 | 3 | 5 | 0 | 0 | 0 | 1 | 3 | 15 | 0 | 0 | .125 | .182 | .125 | .307 | -15.0 | -11.9 | .155 | 0.1 |
| 1960 | 35 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | -122.8 | -100.0 | .000 | 0.3 |
| 1961 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | — | — | -0.2 |
Pitching
| Season | G | GS | W | L | SV | CG | SHO | H | ER | BB | SO | HR | IP | ERA | WHIP | K/9 | FIP | FIP- | ERA+ | sWAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1955 | 18 | 16 | 5 | 6 | 0 | 5 | 2 | 91 | 47 | 50 | 42 | 7 | 86.7 | 4.88 | 1.627 | 4.36 | 4.31 | 111.2 | 79.4 | -0.1 |
| 1956 | 26 | 7 | 0 | 7 | 0 | 0 | 0 | 81 | 46 | 32 | 34 | 9 | 63.3 | 6.54 | 1.784 | 4.83 | 5.08 | 123.2 | 63.1 | -1.0 |
| 1957 | 45 | 26 | 10 | 14 | 6 | 8 | 2 | 210 | 80 | 65 | 116 | 23 | 219.3 | 3.28 | 1.254 | 4.76 | 3.65 | 95.3 | 116.7 | 3.2 |
| 1958 | 32 | 20 | 11 | 8 | 1 | 5 | 2 | 142 | 67 | 49 | 69 | 12 | 156.7 | 3.85 | 1.219 | 3.96 | 3.55 | 96.6 | 96.0 | 1.1 |
| 1959 | 38 | 21 | 14 | 8 | 4 | 3 | 1 | 149 | 68 | 53 | 67 | 14 | 138.0 | 4.43 | 1.464 | 4.37 | 4.01 | 108.2 | 83.5 | 0.1 |
| 1960 | 35 | 1 | 5 | 1 | 4 | 0 | 0 | 70 | 32 | 35 | 28 | 6 | 70.3 | 4.09 | 1.493 | 3.58 | 4.25 | 116.4 | 89.2 | 0.3 |
| 1961 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0.3 | 54.00 | 6.000 | 0.00 | 2.50 | 66.0 | 7.0 | -0.2 |
sWAR is the season TOTAL for a player who both hit and pitched: the record book carries one figure per season, not a split, so the same number appears on both lines rather than being counted twice.
Career totals
Batting
Pitching
A total is called out only where it ranks in the all-time top 500; hover a figure for its rank and the size of the field it was ranked in. Ranks are absolute facts and carry no percentile — the population for "career home runs" would be an editorial choice, and the rank is not.
Best games
Batting
| Date | Game | AB | R | H | 2B | 3B | HR | RBI | BB | TB |
|---|---|---|---|---|---|---|---|---|---|---|
| 1957-06-14 | BOS @ DET Gameday | 4 | 1 | 1 | 0 | 0 | 1 | 2 | 0 | 4 |
| 1955-09-20 | ATH @ DET Gameday | 2 | 1 | 1 | 0 | 1 | 0 | 2 | 0 | 3 |
| 1956-06-10 | DET @ MIN Gameday | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 2 |
| 1957-05-19 | DET @ MIN Gameday | 4 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 2 |
| 1958-05-28 | NYY @ ATH Gameday | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 2 |
Pitching
| Date | Game | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|
| 1957-06-04 | MIN @ DET Gameday | 9.0 | 7 | 4 | 4 | 1 | 8 | 3 |
| 1958-07-10 | CLE @ NYY Gameday | 7.0 | 8 | 3 | 3 | 3 | 8 | 0 |
| 1956-05-03 | DET @ BOS Gameday | 6.1 | 10 | 5 | 5 | 3 | 8 | 2 |
| 1957-04-30 | NYY @ DET Gameday | 10.0 | 3 | 1 | 1 | 4 | 7 | 0 |
| 1955-05-05 | BOS @ DET Gameday | 9.0 | 6 | 2 | 2 | 2 | 6 | 0 |
Ranked from our own play-by-play game log, which begins in 1901 — not from the record book, so a career played outside it shows nothing here rather than a short list.