"If Mickelson ever gets wind of these numbers, we may see him retire the white belt for good."

I think Jason Sobel is right, the numbers-cruncher in Phil Mickelson will have a hard time looking past the white belt jinx, as researched by David Axelson in Atlanta:

In five of those rounds the cursed belt was worn, only once was he able to break par -- at Poppy Hills in Round 2 of the AT&T -- for a stroke average of +1.8 compared to a -1.2 season average and -2.3 in dark belt rounds.

In wins, the white belt was only worn for the second round at Riviera, a 1-over 72 after shooting 63 in the first round. No white belts at Doral, although three white shirts -- a decision that may have won him the championship.

At the Masters, he wore the white belt in the first round (1-over 73), but never again, posting scores of 68-71-67 in the final three rounds.