Heading into Sunday, the Seattle Seahawks had won 10 straight games against the 49ers. And one bettor was so certain that the streak was going to continue that he or she was willing to bet $569,000 on it.

The 49ers won, 26-23. Never gamble.

According to ESPN, a bettor placed a pair of money-line bets on the Seahawks to win. It kept getting worse for this bettor.

Via ESPN:

A bettor at MGM placed two money-line bets totaling $569,000 on the Seattle Seahawks to beat the San Francisco 49ers. According to MGM sportsbook supervisor, the first bet was for $235,000 at -230 odds. The book bumped the up the price to -250 and then took another $334,000 on the Seahawks from the bettor. The 49ers won 26-23 in overtime.

There’s no point spread in a money-line bet, so we could only imagine what that overtime was like for this bettor. That seemed like a less than ideal way to spend a weekend.

The bettor should make friends with this person, though.

.@MGMRaceSports just took a $330,000 bet on the Atlanta Falcons -2.5, per @scottatmirage. Falcons host Ravens tomorrow. Big bet. — David Payne Purdum (@DavidPurdum) December 2, 2018

They have a lot in common.