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Given Name: John Mark
Date of Birth: 11-4-1961
Place of Birth: Springfield, MO, USA
Height: 77"
Weight: 195 lbs
Bats: B
Throws: R
Age: 65
| League | Award | Years |
|---|
| Year | Team | AB | H | HR | BA | R | RBI | SB |
|---|---|---|---|---|---|---|---|---|
| 1984 | Houston Astros | 344 | 73 | 9 | 0.212 | 38 | 34 | 0 |
| 1985 | Houston Astros | 332 | 88 | 10 | 0.265 | 47 | 45 | 0 |
| 1986 | Houston Astros | 153 | 27 | 4 | 0.176 | 9 | 15 | 1 |
| 1987 | Houston Astros | 64 | 13 | 0 | 0.203 | 5 | 3 | 1 |
| 1988 | Houston Astros | 23 | 3 | 0 | 0.130 | 1 | 0 | 0 |
| 1990 | San Francisco Giants | 7 | 1 | 1 | 0.143 | 1 | 3 | 0 |
| 1992 | San Francisco Giants | 26 | 4 | 0 | 0.154 | 0 | 1 | 0 |
| - | Career Totals | 949 | 209 | 24 | 0.22 | 101 | 101 | 2 |
| Year | Team | W | L | ERA | G | GS | SHO | SV | SO |
|---|---|---|---|---|---|---|---|---|---|
| 1984 | Houston Astros | - | - | - | - | - | - | - | - |
| 1985 | Houston Astros | - | - | - | - | - | - | - | - |
| 1986 | Houston Astros | - | - | - | - | - | - | - | - |
| 1987 | Houston Astros | - | - | - | - | - | - | - | - |
| 1988 | Houston Astros | - | - | - | - | - | - | - | - |
| 1990 | San Francisco Giants | - | - | - | - | - | - | - | - |
| 1992 | San Francisco Giants | - | - | - | - | - | - | - | - |
| - | Career Totals | 0 | 0 | NAN | 0 | 0 | 0 | 0 | 0 |
| Year | Team | Position | G | A | E | DP |
|---|---|---|---|---|---|---|
| 1984 | Houston Astros | C | 108 | 56 | 12 | 4 |
| 1985 | Houston Astros | C | 110 | 51 | 13 | 6 |
| 1985 | Houston Astros | 1B | 2 | 1 | 0 | 0 |
| 1986 | Houston Astros | C | 53 | 33 | 4 | 3 |
| 1986 | Houston Astros | 1B | 1 | 0 | 0 | 0 |
| 1987 | Houston Astros | C | 27 | 7 | 2 | 0 |
| 1988 | Houston Astros | C | 8 | 3 | 1 | 0 |
| 1990 | San Francisco Giants | C | 1 | 0 | 0 | 0 |
| 1992 | San Francisco Giants | C | 7 | 2 | 0 | 0 |
| - | Career Totals | - | 317 | 153 | 32 | 13 |