Although Woods is the best player in the field anyone can lose on any given day. He backed out of the tourney last week due to the flu. I really do not think he was that sick. This is a huge tourney for golfers, trust me, and him backing out could also of been for more rest.
The most important stat I have seen about Allenby is that he has been in 10 playoffs, which is win or go home match play, and he has won all ten of them. (some places have 9, but I think it is 10) Allenby has only been in two tourneys this year and missed the cut last week. Although he missed the cut his highest round was a 73.
Last year he was awesome becoming the first player to win the Australian Open, PGA and Masters in the same season.
But, we are talking Tiger here. I don't like the value in this bet, but I think that Tiger roles. ( I usually do not like juice or giving up points on anything) but good luck man.