Every Sunday, the NFL betting market misprices a matchup (or two or three), giving bettors the chance to pounce on +EV underdogs. The 15-game Week 5 slate features several touchdown-plus moneyline longshots. The winless Tampa Bay Buccaneers (+350) and Miami Dolphins (+310) have attractive longhos odds, but neither has the underlying metrics to justify a wager.

The most glaring edges emerge when oddsmakers undervalue early-season metrics, trench advantages, or coaching disparities. Analyzing current pricing alongside situational factors reveals the games most-ripe for a market correction. The breakdown below details the three best NFL upset picks for Week 5.

The picks stem from a nine-signal weighted underdog model evaluating current-season form, coaching pedigree, and situational metrics.

The San Francisco 49ers top the board as the lone high-confidence pick, separated from the pack by the model’s heaviest signal: entering a divisional clash as a field-goal underdog.

For the second straight week, my upset picks went 2-1 in Week 4 – and a hair’s breadth from going 3-0: the Eagles’ fourth-quarter collapse was the only thing standing between my and a clean sweep.

For the season, my underdog picks are now 5-7 SU (-0.66 units on 1-unit wagers).

San Francisco carries the model’s most predictive metric, hitting Signal 1 by entering a divisional clash as an underdog of three points or fewer. The San Francisco 49ers hit three additional signals to validate their high-confidence tier. They hold the superior win percentage (1.000 vs .750). Defensively, San Francisco yields fewer rushing yards per game than the Seattle Seahawks (99.8 vs 102.0) for Signal 7.

Signal 6 pits a robust San Francisco passing attack (251.8 net yards per game) against a Seattle defense surrendering 144.8 passing yards per contest. The sharpest counterpoint favors Seattle’s coaching edge: Mike Macdonald boasts a .732 career win percentage (30-11) compared to Kyle Shanahan’s .569 (95-72), while Macdonald leads the all-time head-to-head series 3-2. To execute the upset, San Francisco must suppress Seattle’s ground game and utilize aerial efficiency to crack a stringent secondary.