After an exhilarating and star-led opening week, bettors have caught World Cup fever.“I knew (overall) handle would beat the last World Cup and wondered if it would be the biggest event of the year. It’s trending that way.” DraftKings sportsbook director Johnny Avello told The Athletic.The first week of action lived up to the hype. And now that every country has played its opening group game, the betting odds have shifted noticeably across various markets. France, England and USA all saw boosts in their title odds.Kylian Mbappe and France leapfrogged Spain as the overall favorite (+375), following La Roja’s shocking scoreless draw with Cape Verde. The shift in odds reflects the margin of error that comes with registering one point in a tie, but Spain is still a -300 favorite to win its group.Despite the draw, most books still have Spain second on the betting board at around +550.“For me, I’m kind of taking that game (against Cape Verde) and throwing it out. They had 28 shots and 78% of the possession. They were the much better team,” Circa Sports oddsmaker Dominick DeBonis said. “I’m not concerned about Spain.”Harry Kane and England began their quest for their first World Cup in 60 years with an opening victory over Croatia. The Three Lions prevailed 4-2 after a see-saw first half that was knotted 2-2 at the break. Kane began the scoring on a penalty kick after being granted a retake because the goalie stepped off his line. The big win helped England move up the board, where it now sits comfortably in the third slot at +600.Speaking of moving up the board, how about that Game 1 showing by the USMNT? In relation to expectations, the United States delivered one of the most impressive performances with its 4-1 victory over Paraguay.“That was the biggest-bet game of the tournament so far,” Avello said.After its dominant victory, the U.S. has shifted from a 60-to-1 long shot to win the entire tournament to about 40-to-1.“The futures market never stops. They’re constantly bet every day, which will continue as long as they continue to play well and win,” Avello said. “If they were to win the whole thing, that wouldn’t be good for revenue. That would be good for the country, but we’d take a pretty big hit.”The Americans entered the tourney as slight +150 favorites to win Group D and are now -250 favorites, following their win and Turkey’s loss.Team USA next faces Australia on Friday with the Americans as consensus -170 favorites on the three-way line (U.S. must win). The Aussies were a surprise 2- 0 upset winner over Turkey in their opener.“Before the first game, I probably would’ve said this line would be -140 or so,” Debonis said. “I also think the way Australia looked changes the equation. This game is ostensibly for the group, and that was not the case beforehand. If Australia had lost and not looked good, then this line would be -210.”American center-forward Folarin Balogun captured the nation’s attention with two early goals and now has received all sorts of wagering support. His odds to score against Australia have been lowered from +200 to +120, following his standout performance and the expected absence of winger Christian Pulisic, who’s officially listed as questionable with a calf injury.Additionally, at BetMGM, Balogun has drawn 2.9 percent of all wagers and 3.5 percent of all money for the tournament’s top goal scorer (Golden Boot award).Why this World Cup Golden Boot race is so unusualDan SantaromitaIf the USMNT can walk away with another win on Friday, look for their title odds to continue to get even shorter.