Handicap bets: how does that work?

Handicap
Handicap should not be considered as a type of bet such as a match winner, or goals/points total. It should be considered as a condition applied to any type of a bet.

Scheme
Match: Basketball – Washington Wizards vs Utah Jazz.
Bet type: Match Winner.
Selection: Team 1 (Washington Wizards).
Handicap: Team 1 +20 points.

The bet is Won if…
1. Washington Wizards wins the match with any advantage.
2. Washington loses the match with the difference no more than 19 points.

The bet is Returned if…
Washington Wizards loses the match with the difference 20 points.

The bet is Lost if…
Washington Wizards loses the match with the difference more than 20 points.

The real result – Washington Wizards vs Utah Jazz 98 – 123 = the bet is Lost.