 He went back to the semifinal stage for the 1957 Soviet final, and he qualified through with a fine 14/19 at the semifinal in Tbilisi 1957, second place behind Taimanov, and advanced to the final.Then, at the 1957 Soviet Championship in Moscow (24th URS-ch), Aronin scored 11/21 to tie for 10th–11th places.In an International tournament in Leningrad later in 1957, Aronin scored 12/19, good for a tie for third–fourth places, behind Spassky and Alexander Tolush, and tied with Taimanov.