1977 Topps #589 Mike Cosgrove
About Mike Cosgrove
Cosgrove's 1977 Topps card, #589, lists him with the Houston Astros. In 1972 he made seven appearances, one of them a start, and posted a 4.61 ERA in 13 2/3 innings. The next year he went 1-1 with a 1.80 ERA in 13 games. His career totals came to 274 2/3 innings, 122 strikeouts and 20 starts.
Mike Cosgrove was a left-handed pitcher for the Houston Astros from 1972 to 1976, used mostly as a reliever. A native of Phoenix, he graduated from Bourgade Catholic High School in 1969, was picked by the Cincinnati Reds in the 16th round that June and went to Phoenix College instead. The Astros took him in the second round of the January 1970 secondary draft, and he began with the Cocoa Astros of the Florida State League. He debuted on September 10, 1972. His best seasons were 1974 and 1975. In 1974 he went 7-3 with a 3.50 ERA and 2 saves in 90 innings. The next year he went 1-2 with a 3.03 ERA and 5 saves in 71 1/3 innings. In 1976 he moved into the rotation for 16 starts and finished 3-4 with a 5.52 ERA. He pitched his last game on September 25, 1976, with a 12-11 record, 4.03 ERA and 8 saves in 119 games.
Sources: Wikipedia · Baseball-Reference
Graded population (PSA & SGC)
| Grader | Total | 10 | 9 | 8 | 7 | 6 | 5 | 1-4 | Auth |
|---|---|---|---|---|---|---|---|---|---|
| PSA | 139 | 17 | 70 | 46 | 4 | 0 | 2 | 0 | 0 |
| SGC | 6 | 1 | 3 | 2 | 0 | 0 | 0 | 0 | 0 |
Graded population — a scarcity guide, not a price. Data as of 2026-10-19. Half grades fold down for both graders (8.5→8); PSA qualified slabs (OC, ST, PD, MC and the like) are not counted.
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Frequently asked questions
What is the 1977 Topps #589 card?
It is card #589 of the 660-card 1977 Topps Baseball set, picturing Mike Cosgrove of the Houston Astros.
How many cards are in the 1977 Topps Baseball set?
660 cards, numbered 1 through 660 with none skipped and distributed as a single series. No card carries a catalogued print variation, so the base set and the master set are the same 660 cards.
Sources: Trading Card Database, PSA CardFacts, BaseballCardPedia, Cardboard Connection, Baseball Almanac, Baseball-Reference, the SABR BioProject and the National Baseball Hall of Fame, PSA & SGC population reports. Card data compiled and maintained by T206Cards.com. Page last updated 2026-10-25.