John Mizerock Autographs
John Joseph Mizerock (/ˈmɪzərɒk/; born December 8, 1960) is an American former Major League Baseball (MLB) catcher who played for the Houston Astros and the Atlanta Braves. He was the eighth overall pick in the 1979 Major League Baseball draft. He later served as a coach for the Kansas City Royals and Philadelphia Phillies. He is currently the hitting coach for the Clearwater Threshers.
The Houston Astros drafted eighteen-year-old Mizerock straight out of Punxsutawney High School in Punxsutawney, Pennsylvania. He was the second of five catchers selected in the first round of the June 1979 draft. After four seasons in their farm system, in which he batted .228 with eighteen home runs (twelve of which were hit in 1982) and 143 runs batted in, Mizerock made the Astros out of spring training 1983 as Alan Ashby's back-up. He allowed three passed balls in a game against the Cincinnati Reds on April 19 to not only lose the back-up catcher job, but to also get himself sent back down to the minors. In fairness to Mizerock, knuckleballer Joe Niekro was pitching.
After Ashby was lost for a month of the season with a viral infection in his ear, Mizerock was called back up. However, he only appeared in four games during that span, and was optioned back down to the triple A Tucson Toros upon Ashby's return. He was brought back up for a third time in mid-August, and remained on the major league roster through the end of the season. He had a second game with Niekro on the mound on August 31 in which he had two passed balls. In all, Mizerock had eleven passed balls for the season; eight of which occurred with Niekro pitching.
Read more about John Mizerock on Wikipedia
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Current items with a signature of John Mizerock
These are the most current items with a signature of John Mizerock that were listed on eBay and on other online stores - click here for more items.
| Picture | Item Title | Price | Store |
 | 1987 Topps - John Mizerock #408 AUTO AUTOGRAPHED SIGNED HOUSTON ASTROS | $12.10 |  |
Traded items with a signature of John Mizerock
The most expensive item with a signature of John Mizerock (Lehigh Valley IronPigs John Mizerock Autographed Jersey #7 Sz Medium Steaks) was sold in May 2021 for $199.00 while the cheapest item (AUTO AUTOGRAPHED SIGNED BASEBALL CARD JOHN MIZEROCK NM B011315) found a new owner for $0.71 in August 2015. The month with the most items sold (4) was July 2025 with an average selling price of $5.70 for an autographed item of John Mizerock. Sold items reached their highest average selling price in May 2021 with $100.50 and the month that saw the lowest prices with $0.87 was August 2015. In average, an autographed item from John Mizerock is worth $2.90.
Most recently, these items with a signature of John Mizerock were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | 1983/86 JOHN MIZEROCK ASTROS OBSCURE AUTOGRAPHED 3X5 W/PHOTO | $2.99 |  |
 | 1985 Cramer Tuscon Toros 68 John Mizerock signed auto autograph ASC BXCP58 | $11.50 | |
| 1986 Donruss 502 John Mizerock signed auto autograph ASC BXCP58 | $6.50 | |
| 1986 Donruss - John Mizerock #502 AUTO AUTOGRAPHED SIGNED | $8.10 | |
| AUTOGRAPHED - John Mizerock Donruss #653 Houston Astros 1987 | $0.99 | |
 | JOHN MIZEROCK (1983) autographed 3 x 5 index card MLB Guaranteed to Pass | $2.50 | |
| John Mizerock 1984 Donruss #380 Houston Astros RC TTM/IP Signed Auto | $6.20 | |
| John Mizerock 1987 Donruss #653 Houston Astros TTM/IP Signed Auto | $5.20 | |
| JOHN MIZEROCK 1987 Topps #372 Autographed SIGNED Card HOUSTON ASTROS | $11.00 | |
| John Mizerock 1987 Topps #408 Houston Astros TTM/IP Signed Auto | $5.20 | |
| John Mizerock Signed 1984 Donruss Houston Astros Autograph | $11.99 | |
| John Mizerock Signed Autograph 1984 Donruss Astros Card | $2.90 | |
| John Mizerock signed card - Astros Braves debut 1983 | $4.50 | |
| SIGNED BASEBALL POSTCARD AUTO KANSAS CITY ROYALS TI MLB JOHN MIZEROCK | $19.94 | |
| STRAT-O-MATIC Signed Card John Mizerock 1986 Houston | $7.00 | |
John Mizerock signed Baseball Trading Cards by Manufacturer
