Handicap in sports betting is basically an certain advantage that one of the team gets from the bookmaker🗜😲😲. For example, let's take a basketball 🦘🦘.🈂.☣️☣️.⚛️⚛️.
For example 'Poisson distribution' is used in football .🍂.🍾🐬. If you really want to go down the rabbit hole - how can you handicap odds for events .🐸..🥯. "half of your bet goes on Newcastle to win, draw, or lose by less than 1 goal" - how does one lose with less than 1 goal :)🍩🔅.
Level Ball (0💁🍟🍟.0 Handicap): No handicap is applied♑️♑️. You win if your team wins🗄. If it's a draw, you get your stake back🚉. Half Goal Handicap (e⏰⁉️⁉️.g., 🐂.🗿♌️♌️.♻️.🚓.
The plus minus is just a handicap to make the betting even, force the favorite to win by a certain amount to even out the bets for each side🌖🤚..