On Tuesday, a bettor at a William Hill U.S. sportsbook in Nevada placed an $85,000 bet on Woods to win the Masters at 14-1 odds.
FanDuel told ESPN that its daily fantasy contest offerings on the Masters would be more costly than its results at the sportsbook.
FanDuel ran a promotion for its $1 million Mega Eagle Daily Fantasy contest for the Masters that refunded entry fees for every contestant, even if Woods wasn't in their lineup.
FanDuel said it will pay out more than $2 million in winnings and promotional refunds from its $1 million Mega Eagle contest on the Masters, the largest fantasy golf contest ever for the company.
BetStars' sportsbook in New Jersey reported taking an approximately $360,000 net loss on its Masters futures market, the largest in the company's brief history offering sports betting in the U.S. BetStars also boosted Woods' odds, at one point offering the five-time Masters champion at 100-1 with a $10 limit as a promotion.