Arizona Cardinals vs Los Angeles Rams Prediction, Odds and NFL Picks for Sunday, 10/18/26

We have an NFC West showdown in Week 6 when the Arizona Cardinals make the short journey to SoFi Stadium to play the LA Rams. Both teams come into this game off losses, but those defeats looked very different. Arizona surrendered 45 points in a 24-point loss when hosting Detroit, while LA lost to Josh Allen and the Bills in overtime on Monday Night Football by three points. 

We don’t see double-digit spreads very often in the NFL, but we have one this week – the Rams are laying nearly 13 points at home despite being 2-3 SU and ATS. That said, the Rams were 2-0 ATS as double-digit home favorites last year, one being against Arizona, while they also easily covered in Arizona as a -9.5 favorite – so Sean McVay knows how to win big when it’s expected. 

In theory, this is an awful spot for the Rams – they’re on a short week after an overtime loss while also expected to win by two touchdowns – but it’s not the best situation for the Cardinals, either. Arizona has played against Seattle, at San Francisco, at New York Giants and then at home against the Lions in the last month, and they lost all four games – three of them by 12 or more. That’s a grueling stretch of opponents and travel, and it doesn’t get any easier against the Rams. 

The backdoor is absolutely open here, but the Cardinals' defense has to get stops in order to give the offense a chance, and that’s what I’m most concerned about in this matchup. Per SumerSports, Arizona ranks 29th or worse in EPA per play and success rate allowed when trailing, surrendering the second-most passing and rushing touchdowns in those scenarios. The Cardinals' offense hasn’t been potent enough to offset those issues, sitting 20th or worse in EPA per pass and EPA per rush when trailing. 

Of course, I’m assuming the Cardinals will trail for a vast majority of the game. Even with the Rams on short rest, I can’t give Arizona any type of edge early in games. The Rams have a significant coaching advantage with McVay, and the playmakers are on a different level than the Cardinals’ outside of Trey McBride. It’s not the most inviting number, but it’s Rams or pass for me in this one. 

Cardinals vs Rams prediction: Rams -12.5 (-115) available at time of publishing. Playable to -13 (-110).

This will be a tough spot for both teams. The Rams are coming off short rest after a back-and-forth overtime thriller against Josh Allen and the Bills after a cross-country trip to Philly and a road trip to Denver. Meanwhile, the Cardinals played three of the seven most efficient defenses in the league through three weeks, had a cross-country trip to New York and then hosted a hungry Lions squad off a Sunday Night Football loss. All this to say, this could be a sloppy, slow-moving game given the wear and tear both teams have already sustained to this point. 

I trust the Rams to produce offensively despite the spot, but I don’t trust the Cardinals to produce against this Rams defense. Sure, LA is banged up, but for my money, this Rams defense has had just one bad defensive performance stateside – and that was last week against a Super-Bowl-caliber offensive and MVP-caliber quarterback. The offense is the reason the Broncos came back from a 16-0 deficit to win that Week 3 game, as the defense held the Broncos to 257 yards, 3.1 yards per carry and 5.1 yards per attempt in Denver. It was similar when they went from Denver to Philadelphia, where the Rams held the Eagles to 172 yards and 0-of-12 on third downs despite the back-to-back road-game situation across the country. 

Playing at home, I’m expecting this Rams defense to clamp down on a somewhat-solid but mostly below-average Arizona offense, which should depress scoring quite a bit. The Rams could definitely flirt with 40 points and make this one a sweat, but given the short rest, we should see a heavy dose of Kyren Williams and Blake Corum once the Rams have a lead, which would keep the clock moving and Arizona’s possessions to a minimum. I see this game somewhere in the range of 31-16 Rams, so give me the under.

Cardinals vs Rams prediction: Under 52 (-110) available at time of publishing. Playable to 51.