[3] In June 2023, shortly after turning 17 years-old, Žižins defeated five-time champion Rodion Judin 5-2 to claim his first Latvian National Snooker Championship.

[4] In March 2024, he reached the semi-finals of the EBSA European Under-18 Snooker Championship where he was defeated by eventual champion Bulcsú Révész of Hungary.

[6][7][2] In June 2024, he made his precessional debut at the 2024 Championship League in Leicester, losing 3-0 to former world champion John Higgins.

[8] In July 2024, he recorded a 5-3 win over experienced professional Robbie Williams in qualifying for the 2024 Xi'an Grand Prix.

[11] At the 2024 English Open in Brentwood in September 2024, he reached the round of 64 with wins over Duane Jones and Robbie Williams.