Kuo Guan-Hong has nine youth titles – one Youth Smash and eight WTT Youth Contender titles. He has not won any senior title.
China Youth Smash 2025 (U19)
WTT Youth Contender Amman 2024 (U19)
WTT Youth Contender Amman 2024 (U17)
WTT Youth Contender Sandefjord 2024 (U17)
WTT Youth Contender Vientiane 2023 (U19)
WTT Youth Contender Vientiane 2023 (U17)
WTT Youth Contender Cheongyang 2023 (U17)
WTT Youth Contender Panagyurishte 2023 (U15)
WTT Youth Contender Platja d’Aro 2023 (U15)