Can anyone explain how I can be in the top 5% of all four WTT events yet more than a second out of the top 5% in the overall standings?  Prior to the change in prizes from money to gold I was always in tier B (could never make it into tier A), but since the change I have always been in tier C despite maintaining a top 5% time in all of the individual WTT events. 

Thanks for your help in understanding this!