Zdenek Kolar, ranked 182nd and competing for Czech Republic, enters the Ostrava clay-court quarterfinals against fellow countryman Jiri Forejtek. Kolar holds a 1–0 head-to-head advantage in their previous meeting, though his recent form has been inconsistent with just one win in his last five matches against F. C. Jianu, offset by losses to M. Houkes, S. Sakellaridis, H. S. Callejon and A. Moro Canas. At Pinnacle, Kolar is favoured at 2.18 decimal odds with the favourite-side line remaining stable.

Jiri Forejtek, ranked 297th and representing Czech Republic, faces higher-ranked compatriot Kolar in this Ostrava quarterfinal on clay. Forejtek arrives on strong form, winning three of his last five contests against H. Barton, J. Nicod and M. Doskocil, though he fell to P. Martin Tiffon in a tight two-set loss before rebounding against L. Carboni. Despite his recent momentum, Forejtek is the underdog at 1.69 decimal odds and must contend with Kolar's prior success in their head-to-head record.