MyTopSportsbook.com offers World Series propositions that extend well beyond the baseball diamond. Based on how difficult it is to decide which are the best bets, a ton of thought must have gone into each one.

For example, the over/under on the number of times the name “Buckner” is mentioned was set at 4.5.

Since Mookie Wilson’s groundball that rolled under first baseman Bill Buckner’s legs was the signature play of the Mets’ World Series championship, in 1986, it definitely will be mentioned. It’s tempting to take the over, but I’d like to believe it will occur to the announcers that Buckner has suffered enough the past 29 years, so anything in excess of two mentions counts as piling on. Take the under.

Over/under on times broadcast cuts to shots of fans in costume on Halloween: 8.5. It only takes once an inning for the over to come through, and my guess is 10 different fans wearing Donald Trump costumes will be shown, not to mention a Rick Pitino in a cardinal boa-feather hat.

Best bet on the board: Odds there is a brawl with at least one punch thrown: 99/1. True, most basebrawls more closely resemble waltzes than hockey fights, but consider this: Daniel Murphy has homered in six consecutive postseason games for the Mets. The old-school, young, hard-throwing Royals pitchers aren’t big fans of hitters digging in and claiming home plate as their domain. Murphy stays hot, and he’ll get dusted until he cools off or until hot-heads pour out of the dugout and one of them throws a punch. It probably won’t happen, but 99/1?

Over/under on the number of celebrity sightings: 15.

Wait a minute, who determines whether someone is a celebrity?

MyTopSportsbook.com writer “AlexanderP” explains: “I do! Sorry, Richard Kind, a secondary role on Spin City will only get you ‘celebrity’ status for so many years.”

If Richard Kind doesn’t count, the under it is. Not only did Kind have a recurring role as Larry David’s cousin Andy on the greatest all-time TV show, “Curb Your Enthusiasm,” he’s a cool guy. We ran into him in an airport on assignment covering the Jayhawks. No ego, which come to think of it might disqualify him as a celeb.

One more prop strikes me as a low-risk, high-reward, worthwhile plunge. Odds a streaking fan arrives via parachute: 5,000/1. Come on, would anybody be shocked if someone from DraftKings.com, feeling so underexposed in recent weeks, wins somebody $10,000 on a $2 wager?

— Tom Keegan appears on The Drive, Sunday nights on WIBW-TV.