Jeremiah Valeska vs Jayce (Arcane): who would win?

Jayce (Arcane) favored — Slight edge (~55%)

Jeremiah Valeska · DC · Base

Tier
8-C
Attack Potency
Building Level
Speed
Athletic Human
Durability
Street Level

Jayce (Arcane) · Arcane · Season 2

Tier
8-C
Attack Potency
Building Level
Speed
Average Human, up to Subsonic
Durability
Building Level

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