Jack Theis
Baseball
John Louis Theis (July 23, 1891 – July 6, 1941) was a pitcher in Major League Baseball. He played for the Cincinnati Reds. Theis holds the record shared by many for the lowest ERA in MLB history, having not allowed an earned run in the only game of his career.
They come and go. We’ll email you the moment one lists.
🔔 Sign in to get an alert
ISO
Nobody has an ISO for Jack Theis 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 Jack Theis 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 Jack Theis 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