Not from a work of science fiction, fantasy, or horror.
Created after 1975.
Race not specified, but given the milieu, most likely Caucasian.
From a novel.
Not from a work of historical fiction.
Last name starts A - M.
First name is a variation on “Quentin”, “Quincy”, or “Quinn”.
Not adapted into other media (so far as I can determine).
Male creator.
Not from a comedy.
Not from a mystery or thriller.
First name is a variation on “Quentin”.
First name is not a variation on “Quincy”.
From a series of books, sort of (only two).
American character.
From a New York Times bestseller. Considered the greatest novel ever written about its subject.
Last name starts “A” - “F”.
Book is not about an industry.
Book is not connected to the Viet Nam war, although one character in the second novel dies in that war, and it affects the subject of this round.
Last name starts “A” - “C”.
Not from a children’s/young adult book.
Story does not involve LGBTQ+ issues.
Since this is proving so tough, and as I said, I have some small questions as to how well known this novel is, I’ll add a freebie: The story is about a sport.
Most sport books I’ve read are nonfiction - Bill James, Paper Lion, Ball Four - and the main exceptions are a couple Chip Hilton titles, which (a) don’t qualify on other grounds and (b) I remember almost nothing from them.