2026 Yokkaichi Challenger

Country	Player	Rank1	Seed
JPN	Sho Shimabukuro	110	1
DEN	August Holmgren	197	2
FRA	Dan Added	204	3
TPE	Hsu Yu-hsiou	215	4
CHN	Zhou Yi	221	5
JPN	Kaichi Uchida	236	6
JPN	Rio Noguchi	245	7
AUS	James McCabe	246	8

• ¹ Rankings are as of 16 March 2026.^[1]

The following players received wildcards into the singles main draw:

• Naoya Honda
• Kokoro Isomura
• Sho Shimabukuro

The following player received entry into the singles main draw using a protected ranking:

• Blake Ellis

The following player received entry into the singles main draw through the Junior Accelerator programme:

• Benjamin Willwerth

The following player received entry into the singles main draw through the Next Gen Accelerator programme:

• Ognjen Milić

The following player received entry into the singles main draw as an alternate:

• Li Tu

The following players received entry from the qualifying draw:

• Justin Boulais
• Cui Jie
• Masamichi Imamura
• Carl Emil Overbeck
• Kasidit Samrej
• Sun Fajing

• Rio Noguchi def. Yasutaka Uchiyama 5–7, 7–6^(7–5), 6–3.

• Sun Fajing / Wu Tung-lin def. Ethan Cook / Tai Sach 7–6^(8–6), 6–3.