Michael John Cosgrove (born February 17, 1951) is a former Major League Baseball pitcher with the Houston Astros from 1972 to 1976. Cosgrove was used primarily as a left-handed relief pitcher. His best seasons came in 1974 and 1975. In '74 he was 7–3 with a 3.50 ERA and 2 saves in 90 innings pitched. For '75 Cosgrove went 1–2 with a 3.03 ERA and recorded 5 saves in 71.1 innings pitched.
Bands
Mike Cosgrove
Mike Cosgrove drops
Alien Ant Farm- ANTthology signed vinyl bundle
Alien Ant Farm
Artist Website · $85 · in stock
Get alerted when Mike Cosgrove has a new drop. 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.
They come and go. We’ll email you the moment one lists.
🔔 Sign in to get an alert
ISO
Nobody has an ISO for Mike Cosgrove 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
TTM
Nobody has logged a through-the-mail request to Mike Cosgrove 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
