John Gray is a gambling nut. He’ll bet the quarters and halves of any game he’s watching, just for the heck of it. That’s why he guarantees victory as the final fan of the season.

“Watch, now I’ll wind up with three wins,” Gray, 28, said.

Gray, a self-proclaimed professional student, attends C.W. Post in the hopes of one day teaching geography at an elementary school. Why did he pick geography?

“It was the easiest,” Gray said.

His picks are: Giants, Raiders, Jets, Patriots, Redskins, Bills, Falcons, Vikings, Titans, Panthers, Ravens, Colts, Broncos, Chargers, Bucs and Rams.

The fan with the highest winning percentage at the end of the season will win $1,000. In the case of a tie, the prize will be split evenly.

Last week Lenn LaMonica took the overall lead, going 9-6-1 for a .600 winning percentage.

If you would like to be in The Fan’s Corner, tell us about yourself and send your mug shot and phone number to the New York Post Sports Dept., 1211 Avenue of the Americas, New York, NY 10036.