[1] Tanaka looks up to fellow Japanese skaters Satoko Miyahara, Kana Muramoto and Yuna Shiraiwa.

[4][5] Tanaka was assigned to make her Junior Grand Prix debut at the 2019 JGP Lake Placid on the 2019–20 circuit.

In her short program, she missed her combination due to a fall and doubled a planned triple Loop, placing her tenth with a score of 51.37 points.

She then competed at the senior level, finishing tenth in the short program with a clean skate despite a quarter call on her combination.

In the free skate, she under-rotated the first three jumps and struggled on the spins, then finishing in fourth place behind Canada's Fiona Bombardier.

[10] Tanaka/Nishiyama made their international competitive debut on the Challenger circuit at the 2023 CS Golden Spin of Zagreb, coming ninth.