HOUSTON — The New York Giants pulled off one of Week 7's biggest surprises Sunday, beating the Houston Texans 27-21 in overtime at NRG Stadium despite entering as roughly 9.5-point underdogs.

New York came into the game at 3-2-1, while Houston sat at 2-4 but was still favored heavily — Houston carried a moneyline near -500 against the Giants' +380, according to pregame odds tracked by Covers.com. Those numbers made the final result one of the more lopsided upsets, by win probability, of the NFL's Week 7 slate.

A scheduling edge for the underdog

Part of the pregame case for New York centered on fatigue: Houston was coming off a trip to London for an international game and had no bye week to recover before hosting the Giants, a wrinkle that Sports Illustrated's betting desk flagged beforehand as a reason New York could hang around longer than the double-digit spread implied. It turned out to be more than that — the Giants forced overtime and finished the job.

The win was part of a chaotic Week 7 across the league that also included Cincinnati's 35-13 rout of Baltimore and Tampa Bay's 43-13 blowout of Carolina, according to live scoring tracked by CBS Sports' Sunday scoreboard.

What's next

The result pulls New York to 4-2-1 and back into the thick of the NFC playoff picture at the midpoint of the season, while Houston drops to 2-5 and faces mounting pressure. Both teams will look at the tape this week to see whether Sunday's result reflects a real turnaround for the Giants or a one-off letdown for a Texans team still finding its footing after its London trip.