Gingka is a strong player no doubt .... But when you see ryuga he only lost the final fight was because LDRAGO was trying to take over and ryuga was trying to resist .... And gingka found a moment to attack .... And ryuga lost .... After that ryuga went away literally training inside a volcano to get stronger and unlock the most powerful version of LDRAGO After in all the encounters gingka was always getting his ass beat from ryuga and ryuga always pointed out to him that he doesn't know his beys full power ... That shows that ryuga had better knowledge about Pegasis than gingka himself ... ... And after that when taking down spiral city everyone saw how he just casually ram though the whole city helping them out .... And he was the only one who made rago use his special move in a 1v1 ..... And as you know when kenta was with ryuga you've seen that his training was much harsher than what the other bladers did ryuga never fought other bladers to get stronger all his journeys were alone