Supanida Katethong

Supanida Katethong (Thai: ศุภนิดา เกตุทอง; born 26 October 1997) is a Thai badminton player.^[1] She won the gold medal in the women's singles at the 2023 SEA Games, and also part of Thai winning team at the Games in 2021 and 2023. She is nicknamed as May Sai (Thai: เมย์ซ้าย, lit. 'left May'), so as to not only avoid confusion with another May, which is Ratchanok "May" Intanon, but to also reference her left-handedness.^[2]

Supanida Katethong
Personal information
Nickname(s)	May
Country	Thailand
Born	(1997-10-26) 26 October 1997 (age 27) Bangkok, Thailand
Height	1.63 m (5 ft 4 in)
Handedness	Left
Women's singles
Highest ranking	6 (21 January 2025)
Current ranking	11 (5 August 2025)
Medal record Women's badminton Representing  Thailand Uber Cup 2020 Aarhus Women's team 2022 Bangkok Women's team Asian Games 2022 Hangzhou Women's team Asia Mixed Team Championships 2023 Dubai Mixed team Asia Team Championships 2024 Selangor Women's team 2020 Manila Women's team SEA Games 2021 Vietnam Women's team 2023 Cambodia Women's singles 2023 Cambodia Women's team
BWF profile

Career

Katethong started playing badminton at age nine and joined the Thailand national junior team in 2015.^[3] She won her first international title at the 2014 Singapore International tournament in the women's singles event.^[4] In the early of 2015, she won the women's singles title at the Granular Thailand International Challenge tournament.^[5] In May 2015, she won double titles at the Smiling Fish International tournament in the women's singles and doubles event.^[6] She also won the Sri Lanka International tournament in the women's singles event.^[7]

In 2018, Katethong finished runners-up in the Indonesia International and Spanish International.^[8][9] She then claimed two titles in 2019 in the Iran Fajr International and Mongolia International.^[10][11]

Katethong reached her first final in the BWF World Tour at the India Open, losing to her compatriot Busanan Ongbamrungphan.^[12]

2023–2024

Katethong opened the 2023 season as a semi-finalist in the India Open, losing to the then world number 1 Akane Yamaguchi.^[13] She also reached the semi-finals in the Thailand Masters. 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.^[16] In the next two tournaments, she was defeated by her compatriot Ratchanok Intanon in the second round of the Japan Open, and in the quarter-finals of the Australian Open.^[17]

In 2024, Katethong reached three finals, where she won the Thailand Open,^[18] and also became finalists in the Thailand and Spain Masters.^[19][20]

Achievements

SEA Games

Women's singles

Year	Venue	Opponent	Score	Result	Ref
2023	Morodok Techo Badminton Hall, Phnom Penh, Cambodia	Lalinrat Chaiwan	21–12, 21–14	Gold	[14]

BWF World Tour (2 titles, 3 runners-up)

The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018,^[21] is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF). The BWF World Tour is divided into levels of World Tour Finals, Super 1000, Super 750, Super 500, Super 300, and the BWF Tour Super 100.^[22]

Women's singles

Year	Tournament	Level	Opponent	Score	Result	Ref
2022	India Open	Super 500	Busanan Ongbamrungphan	20–22, 21–19, 13–21	Runner-up	[12]
2023	U.S. Open	Super 300	Gao Fangjie	21–15, 21–16	Winner	[16]
2024	Thailand Masters	Super 300	Aya Ohori	21–18, 17–21, 13–21	Runner-up	[19]
2024	Spain Masters	Super 300	Ratchanok Intanon	12–21, 9–21	Runner-up	[20]
2024	Thailand Open	Super 500	Han Yue	21–16, 25–23	Winner	[18]

BWF International Challenge/Series (7 titles, 2 runners-up)

Women's singles

Year	Tournament	Opponent	Score	Result	Ref
2014	Singapore International	Millicent Wiranto	21–11, 22–20	Winner	[4]
2015	Thailand International	Kim Hyo-min	21–16, 21–16	Winner	[5]
2015	Smiling Fish International	Sarita Suwannakitborihan	21–14, 21–17	Winner	[6]
2015	Sri Lanka International	Sabrina Jaquet	17–21, 21–11, 12–6 retired	Winner	[7]
2018	Indonesia International	Aurum Oktavia Winata	19–21, 16–21	Runner-up	[8]
2018	Spanish International	Michelle Skødstrup	11–21, 15–21	Runner-up	[9]
2019	Iran Fajr International	Choirunnisa	21–16, 21–13	Winner	[10]
2019	Mongolia International	Sim Yu-jin	21–19, 19–21, 21–9	Winner	[11]

Women's doubles

Year	Tournament	Partner	Opponent	Score	Result	Ref
2015	Smiling Fish International	Panjarat Pransopon	Thidarat Kleebyeesoon Ruethaichanok Laisuan	21–13, 21–8	Winner	[6]

  BWF International Challenge tournament

  BWF International Series tournament