Middling is a sports betting strategy that aims to capitalize on fluctuations in point spreads or totals by placing bets on both sides of a contest, creating an opportunity for a bettor to win on both wagers. The strategy involves taking an initial bet on one side when the line is favorable, and then waiting for the line to move significantly before placing a counter bet on the opposite side. For example, if a game opens with Team A favored by -3 points and you bet on Team A, and then the line shifts to -5 points, you could place a bet on Team B at +5. If the final score lands between the two spreads (i.e., Team A wins by 4), you would win both bets, which maximizes your potential payout.