Soshiro Hoshina vs Mumbo: who would win?

Soshiro Hoshina favored — Favored (~65%)

Soshiro Hoshina · Kaiju No. 8 · Defense Force Suit

Tier
LOW 7-C, up to 7-A
Attack Potency
Small Town Level, up to Mountain Level+
Speed
Subsonic, up to High Hypersonic
Durability
Small Town Level, up to Mountain Level+

Mumbo · DC · Base

Tier
LOW 7-C
Attack Potency
Athlete Level, up to Small Town Level
Speed
Relativistic
Durability
Athlete Level, up to Small Town Level

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