Cameron Norrie defeated Carlos Alcaraz 4–6, 6–3, 6–4 in the first round of the Paris Masters on hard court, pulling off a significant upset against the overwhelming pre-match favourite. Alcaraz entered as a prohibitive favourite at 1.05 odds, whilst Norrie was priced at 10.54, reflecting the world No. 2's dominance and recent form. After losing the opening set, Norrie regrouped decisively, winning the second set 6–3 before closing out the match in the third set with a 6–4 scoreline. The result marks a notable scalp for Norrie at a Masters 1000 event and suggests improved form heading into the latter stages of the autumn hard-court season. Alcaraz's loss represents a rare stumble at a tournament where he typically contends strongly.