[2] Katethong started playing badminton at age nine and joined the Thailand national junior team in 2015.

[4] In the early of 2015, she won the women's singles title at the Granular Thailand International Challenge tournament.

[10][11] Katethong reached her first final in the BWF World Tour at the India Open, losing to her compatriot Busanan Ongbamrungphan.

In May, Katethong competed at the SEA Games in Cambodia, and won the gold medals in the women's singles and team events.

[14][15] On 16 July, she won her first BWF World Tour title at the 2023 U.S. Open after defeating Gao Fangjie in two straight games.