Darius vs Dr. Mundo Top Matchup
Darius Top wins 46.0% of 3,350 Low Elo games against Dr. Mundo Top, -1.3 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.
Why Dr. Mundo is favored
Mundo can collect farm with Infected Bonesaw(Q) without stepping into Apprehend(E), and his passive can block one of Darius's main engage attempts. If Darius cannot build an early wave and farm lead, Mundo can reach the stronger sustain and scaling that make the matchup increasingly difficult.
Measured in High Elo: Dr. Mundo wins 3.2pp more often than expected over 1,085 games.
How to play as Darius
Slow-push the first two waves into a third-wave crash, then hold the returning wave near your side to zone Mundo and build a farm lead instead of forcing repeated kills.
Use Apprehend(E) to trigger Mundo's passive while the wave is favorable, then look for an all-in during its cooldown; do not spend the trade walking through free cleaver poke.
Infected Bonesaw(Q) lets Mundo last-hit from range, while Goes Where He Pleases(P) can block Darius's first immobilizing Apprehend(E) and drops a canister when triggered.
How to play as Dr. Mundo
Use Infected Bonesaw(Q) to collect farm when Darius holds the wave near his side, and only approach for a canister when doing so will not let Darius run you down.
Sources
These notes come from r/Dariusmains, checked against the champions' abilities.