Reggio Emilia held off a fourth-quarter rally before pulling away for a 75-63 victory over Krasnye Krylia in the first leg of their EuroChallenge quarter-final.
Tartu Rock held off a fourth-quarter rally from Szolnoki Olaj to win the first leg of their EuroChallenge quarter-final 87-83.
Royal Hali Gaziantep wiped out a 21-point deficit to take a 59-58 victory in the first leg of their EuroChallenge quarter-final play-off series against Tsmoki Minsk.
Triumph Lyubertsy blew a big first-half lead but then pulled clear at the end to take a crucial 80-72 road win over Ural Ekaterinburg in the first leg of their all-Russian EuroChallenge quarter-final.
All four EuroChallenge quarter-final play-off series tip off on Tuesday and there is hardly margin to fail in Game 1 for any team that aspires to reach the Final Four.