Valentin Royer enters the Oeiras 3 final as the higher-ranked player at world No. 76, representing France on clay in what marks his first meeting with Ramil Safiullin. The French competitor has shown strong form throughout the tournament, winning four of his last five matches including victories over Jannik Sinner's conqueror Mariano Cecchinato and a two-set win against Jiri Rodionov. Royer's only recent setback came against Dalibor Prizmic, but he rebounded decisively with a dominant 2-0 performance against Alexei Fery, demonstrating resilience on clay courts.

Ramil Safiullin arrives at the Oeiras 3 final ranked No. 226 and chasing his first ATP-level title on clay against Royer, with no prior head-to-head record between the pair. The Russian qualifier has impressed in Oeiras with back-to-back victories over Joao Faria and Liam van Assche, as well as wins against Torres and Silva to reach the championship match. Safiullin's sole recent loss came to Jannik Schwaerzler, but his run to the final demonstrates his capability on clay despite his lower ranking relative to his opponent.