[3] In 2014, Oleksii competed with his new partner Denys Denysenko at the World U-19 Beach Volleyball Championships without reaching a play-off stage.
[4] Competing with Sergiy Popov, Oleksii won a gold medal at the EEVZA Beach Volleyball Tour in Riga, Latvia.
[5] He represented Ukraine at the 2015 European Games with Oleh Plotnitskyi without reaching 1/8 round stage.
[7] The following years, the duo Denin/Popov competed at the 2017 FIVB Beach Volleyball World Tour in Alsmer without reaching a bronze medal.
[9] In 2018, the duo Denysenko/Denin won a bronze medal at the 2018 FIVB Beach Volleyball World Tour in Alanya.