Ron Mrozinski
Baseball
Mrozinski came up through the Phillies\' organization, registering double figures in wins during each of his first four pro seasons. Recalled from Triple-A Syracuse in the middle of 1954, he got into 15 games for the Phils, four as a starter, and split two decisions with a 4.50 earned run average in 48 innings pitched. He threw one complete game; ironically, it was the game he lost, 5–2, on September 14 against the St. Louis Cardinals at Connie Mack Stadium. Mrozinski had held the Cards to two runs into the eighth inning before giving up back-to-back home runs to Red Schoendienst (a two-run job) and Rip Repulski. Ten days later, Mrozinski earned his only big-league win, going 62⁄3 innings against the eventual world champion New York Giants. In that game, Mrozinski left with a 4–2 lead, and was relieved by a Baseball Hall of Famer, Robin Roberts, who shut down the Giants for the remainde…
Full biography →They come and go. We’ll email you the moment one lists.
🔔 Sign in to get an alert
ISO
Nobody has an ISO for Ron Mrozinski yet. Be the first.
What’s an ISO?
ISO means in search of. You post the autograph you want (who, what item, your budget), and sellers who can get it, or already have it, reach out to you. It’s free, and it’s how many collectors find pieces that never hit eBay.
In RACC collections
Pieces RACC members have put on show
No Ron Mrozinski drops yet. Be first to know when there is one. Drops are official signed merchandise that artists, record labels and official distributors release regularly, and they sell out fast.
Alerts come as one daily summary email, most popular first.
TTM
Nobody has logged a through-the-mail request to Ron Mrozinski yet. Be the first to log a TTM.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Terms of Service · Privacy Policy · Community Rules
© 2026 Real Autograph Collectors Club