Biz Mackey
1920–1947 · bats B / throws R · ASE, BCG, Baltimore Elite Giants, BLS, ECG, HIL, Homestead Grays, IN4
934G
.322AVG
.385OBP
.467SLG
More career statistics
980H
56HR
590RBI
64SB
0–5W–L
21.2IP
15K
7.48ERA
3GS
Career summary: MLB’s official regular-season totals. Season lines, splits and historical game logs below are reconstructed from the covered Retrosheet records and can differ in coverage or scorer revisions. Compare sources and coverage.
Why official totals and the game-record sums differ
The sources can disagree on historical scorer decisions, appearances, and which games belong to a major-league record. The career summary uses the official total; the source game rows retain their recorded values.
| Statistic | MLB official | Recorded game sum |
|---|---|---|
| Batting · Games | 934 | 377 |
| Batting · At bats | 3,048 | 1,104 |
| Batting · Doubles | 166 | 38 |
| Batting · Hits | 980 | 327 |
| Batting · Hit by pitch | 20 | 4 |
| Batting · Home runs | 56 | 15 |
| Batting · Plate appearances | 3,442 | 1,216 |
| Batting · Runs | 482 | 143 |
| Batting · RBI | 590 | 87 |
| Batting · Stolen bases | 64 | 2 |
| Batting · Triples | 54 | 8 |
| Batting · Walks | 296 | 97 |
| Pitching · Games | 7 | 1 |
| Pitching · Batters faced | 105 | 10 |
| Pitching · p cg | 1 | 0 |
| Pitching · p er | 18 | 0 |
| Pitching · p gs | 3 | 0 |
| Pitching · p h | 30 | 2 |
| Pitching · p hr | 3 | 0 |
| Pitching · p ipouts | 65 | 6 |
| Pitching · p k | 15 | 1 |
| Pitching · p r | 21 | 4 |
| Pitching · p w | 6 | 0 |
Career batting
| G | PA | AB | R | H | 2B | 3B | HR | RBI | BB | K | SB | CS | HBP | SF | TB | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 934 | 3,442 | 3,048 | 482 | 980 | 166 | 54 | 56 | 590 | 296 | 0 | 64 | 0 | 20 | 0 | 1,422 | .322 | .385 | .467 | .852 |
Career pitching
| IP | G | GS | CG | W | L | SV | H | R | ER | HR | BB | K | HBP | WP | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.7 | 7 | 3 | 1 | 0 | 5 | 0 | 30 | 21 | 18 | 3 | 6 | 15 | 0 | 0 | 7.48 | 1.662 |
Streaks
8longest hitting streak · 1940-06-15 to 1940-06-30
17longest on-base streak
The three rarest things in this career
| Rarity | What | Date | Rate | Game |
|---|---|---|---|---|
| 23 | 9 total bases | 1936-05-09 | 1 in 419 player-games | box score ↗ |
| 14 | 3 walks | 1936-08-21 | 1 in 192 player-games | box score ↗ |
| 12 | 4 hits | 1935-07-13 | 1 in 138 player-games | box score ↗ |
Splits
Regular season only.
Home and away
| G | PA | H | HR | RBI | BB | K | AVG | OBP | SLG | |
|---|---|---|---|---|---|---|---|---|---|---|
| Home | 203 | 651 | 181 | 9 | 48 | 50 | 0 | .305 | .355 | .397 |
| Away | 174 | 565 | 146 | 6 | 39 | 47 | 2 | .286 | .342 | .373 |
By month
| G | PA | H | HR | RBI | BB | K | AVG | OBP | SLG | |
|---|---|---|---|---|---|---|---|---|---|---|
| April | 3 | 10 | 3 | 0 | 1 | 1 | 0 | .333 | .400 | .444 |
| May | 88 | 284 | 86 | 5 | 27 | 25 | 1 | .333 | .391 | .426 |
| June | 75 | 232 | 59 | 4 | 13 | 17 | 1 | .282 | .328 | .383 |
| July | 94 | 303 | 79 | 5 | 17 | 18 | 0 | .280 | .320 | .383 |
| August | 79 | 265 | 71 | 1 | 20 | 28 | 0 | .303 | .374 | .380 |
| September | 37 | 120 | 27 | 0 | 9 | 8 | 0 | .245 | .292 | .300 |
| October | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 1.000 |
Most-faced opponents
| G | PA | H | HR | RBI | BB | K | AVG | OBP | SLG | |
|---|---|---|---|---|---|---|---|---|---|---|
| philadelphia-stars | 74 | 235 | 64 | 5 | 20 | 20 | 0 | .302 | .357 | .392 |
| homestead-grays | 71 | 217 | 55 | 0 | 11 | 19 | 0 | .285 | .341 | .342 |
| pittsburgh-crawfords | 57 | 180 | 53 | 1 | 12 | 8 | 1 | .312 | .339 | .394 |
| new-york-cubans | 36 | 102 | 32 | 2 | 13 | 8 | 0 | .344 | .392 | .473 |
| new-york-black-yankees | 35 | 124 | 36 | 2 | 9 | 13 | 0 | .324 | .395 | .459 |
| baltimore-elite-giants | 33 | 98 | 24 | 0 | 8 | 9 | 0 | .273 | .337 | .352 |
| newark-eagles | 20 | 81 | 25 | 2 | 7 | 6 | 0 | .338 | .383 | .432 |
| chicago-american-giants | 13 | 42 | 11 | 0 | 2 | 3 | 1 | .282 | .333 | .333 |
Season by season
| Year | Team | G | AB | H | HR | RBI | SB | AVG | IP | K |
|---|---|---|---|---|---|---|---|---|---|---|
| 1921 | IN4 | 2 | 8 | 1 | – | – | – | .125 | – | – |
| 1924 | HIL | 1 | 4 | – | – | – | – | .000 | – | – |
| 1927 | HIL | 1 | 3 | – | – | – | – | .000 | – | – |
| 1929 | HIL | 1 | 3 | – | – | – | – | .000 | – | – |
| 1933 | Philadelphia Stars, Pittsburgh Crawfords | 12 | 47 | 11 | – | 2 | – | .234 | – | – |
| 1934 |  Philadelphia Stars | 14 | 36 | 10 | 1 | 2 | – | .278 | – | – |
| 1935 | Philadelphia Stars | 51 | 152 | 47 | 2 | 6 | 1 | .309 | – | – |
| 1936 | WEG | 57 | 210 | 65 | 3 | 19 | – | .310 | – | – |
| 1937 | WEG | 24 | 72 | 19 | 1 | 9 | – | .264 | – | – |
| 1938 |  Baltimore Elite Giants | 37 | 124 | 36 | 1 | 8 | 1 | .290 | – | – |
| 1939 | Baltimore Elite Giants, Newark Eagles | 36 | 95 | 30 | 3 | 11 | – | .316 | – | – |
| 1940 | NENewark Eagles | 40 | 129 | 44 | 1 | 7 | – | .341 | – | – |
| 1941 | NENewark Eagles | 22 | 60 | 15 | – | 4 | – | .250 | – | – |
| 1944 | KCR | 1 | 2 | 2 | – | – | – | 1.000 | – | – |
| 1945 | NENewark Eagles | 33 | 76 | 26 | 2 | 11 | – | .342 | – | – |
| 1946 | NENewark Eagles | 10 | 10 | 2 | – | – | – | .200 | 2 | 1 |
| 1947 | NENewark Eagles | 35 | 73 | 19 | 1 | 8 | – | .260 | – | – |