In a decisive Week 18 showdown, the San Francisco 49ers topped the Arizona Cardinals with a final score of 38-24, solidifying their playoff positioning as the season draws to a close. The stakes were high as both teams aimed to secure momentum heading into the postseason, but the 49ers ultimately proved too strong on the road. Brock Purdy led the charge for San Francisco, throwing for two touchdowns and helping his team maintain a steady offensive rhythm throughout the game. Christian McCaffrey added a solid ground game, rushing for 72 yards, while the Cardinals' Joe Milton showcased his arm strength with 333 passing yards, throwing for a late score that kept Arizona competitive. Michael Wilson stood out among the receivers, racking up 129 yards, but it wasn't enough to overcome the 49ers' offensive firepower. Defensively, the Cardinals struggled to contain San Francisco's attack, which was highlighted by the inability to pressure Purdy consistently. Walter Nolen III recorded the team's lone sack but could not disrupt the 49ers' flow. The turning point came in the third quarter when San Francisco scored back-to-back touchdowns, creating a gap that the Cardinals could not bridge despite a valiant effort.