In layman's terms, a tennis match is a best-of-three system, where each set is won by a side taking the first six games and leading the other side by two games (or 7:5, 5:7 if the set is 5:5, or 6:6 and then a point via a steal of seven). Specifically for each set, the first side to score four points (40:0, 40:15, 40:30, Ad:40 and then one point) to win.