Gragas vs Cho'Gath Top Matchup
Gragas Top wins 48.9% of 505 Low Elo games against Cho'Gath Top, +0.3 points vs expected, 2-patch window 26.19-26.20.
Researched on LoL patch 26.20. Tips are written to hold at any rank; stats come from Low Elo ranked games up to patch 26.20.
How to play as Gragas
Minimize interaction, prioritize clean last-hits, and use your waveclear to create room to roam; Cho'Gath can match your sustain and becomes dangerous at close range later.
If Cho'Gath is out of position and your team can collapse, use Explosive Cask (R) to knock him toward your team; otherwise look to flank around him onto the carries.
Both champions can recover resources while farming: Gragas's Happy Hour (P) heals when he uses a skill, and Cho'Gath's Carnivore (P) restores health and mana when he kills a unit.
Sources
These notes come from lolmatchups.gg, checked against the champions' abilities.