I guess you mean Men's Open? I have never bothered to figure out how they do the points for IOS. The points going into Fairfield had Cannon Boy Swanson in first, Shane Rose in second and Brett Comincioli in third. Brett won Fairfield, Shane was 4th and Neal tied for 7th, so any of those guys could have won. If the points are figured the way I think they are it would have been a tie between Neal Swanson & Shane Rose, and I have no idea if or how they would have a tie-breaker for an overall series title.
The final points have still not been posted. Since Bruce Brakel is the self-confirmed greatest disc golf event director in history and IOS is his baby, it's funny that the final results of his series have never been posted.