What counts is the total number of points earned by the opponents you beat. You and Uil had the same record except that you won both games from grafzahl while Uil went 1-1 against him; and Uil won both games from Seravajan, while you split with him. Grafzahl finished with 5 points, and Seravajan finished with 7. You earned 17 S-B points for your games against these two, while Uil earned 19 S-B points. That is why he has 2 more S-B points than you do.