Master Oogway vs Zala: who would win?

Zala favored — Slight edge (~55%)

Master Oogway · Kung Fu Panda · Base

Tier
7-C
Attack Potency
Town Level
Speed
Supersonic+
Durability
Town Level

Zala · One Piece · Base

Tier
7-C
Attack Potency
Town Level
Speed
Massively Hypersonic
Durability
Town Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.