Su Chengyu knew that Lee Longqing was a formidable contender. Even among the younger generation in the eastern region, he was regarded as a standout. If Su Chengyu were to rely solely on his abilities, he would inevitably lose against Lee Longqing, as ranking ninth in the Martial Marquis Realm was no mere affirmation of his power. Moreover, Lee Longqing came from a profound martial lineage, granting him the ability to conquer opponents of a higher level.
However, this was the case only if Su Chengyu didn't use the God Summoning Talisman or the Heaven-Mending Stone.
That being said, Su Chengyu had no intention of using these trump cards merely for the hollow recognition accompanying the championship of the Dragon Soul Meeting. The Heaven-Mending Stone, a force external to his abilities, was something he'd use in a life or death battle, not in a competition for it would violate the essence of martial arts.