Dariusz Michalski of Poland enters the Bratislava semi-finals as the world No. 299, seeking to advance on his home continent's clay surface. The Polish player has shown mixed form in recent matches, with two losses against Vedran Durasovic and Hannes Barton offset by three wins over Andrej Paulson, Brayden Hassan, and Mikhail Sharipov. Michalski faces American Alexander Martin with no prior head-to-head record between the two competitors. At Pinnacle, Michalski is favored at 1.62 decimal odds in this clay-court semi-final.

Alexander Martin of the USA arrives at the Bratislava semi-finals ranked No. 284 and competing on clay after a recent mixed run of results. The American has won three of his last five matches, including convincing straight-set victories over David Dutra Da Silva and Tomás Berkieta, though he suffered losses to Adriana Walton and Vendula Kopriva. Martin carries no previous head-to-head record against Polish opponent Dariusz Michalski in this inaugural Bratislava semi-final meeting. Pinnacle offers Martin at 2.33 decimal odds as the underdog on clay.