People have noticed that I asked if any one could overcome Don's huge lead at WBC and failed to answer. So, lets do that.
Note that this is a bit of a guess. The numbers of points people could get winning races and the WBC event itself will depend on how many people attend. However, assuming a slightly larger attendance then last year three people seem like they have a chance.
Tim Baker, Brian DeWitt, and Bill Worrell appear to have a shot. Each would likely have to win a well stocked* qualifying race AND the Finals.
Meanwhile, Don has pretty much maxed out his points potential. Pretty much all he can do to defend himself is win the finals so no one else does. Unless lots of people do show up and the races end up being worth more than I have guessed.
* Depending on the heat, WBC qualifying races can have 6 or 7 participants. More will typically mean more value for the race.