Best Riven Mid Synergies

Compare Riven Mid strongest and weakest synergies by duo win rate, expected win rate, delta, sample size, and allied role for team comp planning.

Updated 2026-09-20. Data is current for LoL patch 26.18 (all regions, low elo and high elo).

How these matchup statistics are calculated

Counter and synergy statistics use Ranked Solo/Duo games, exclude matches shorter than 600 seconds, and group results by patch window, region, rank scope, and champion role.

Pairwise pages use a rolling three-patch window and compare observed win rate with a log-odds expected win rate based on each champion's role-adjusted baseline; listed pairs require at least 500 games.

Read the full methodology for the model and guidance on interpreting these results.

Summary

High Elo data lists Kai'Sa ADC as the strongest synergy partners for Riven Mid. The weakest listed synergies for Riven Mid are Caitlyn ADC. The detailed info below lists each partner with observed win rate, expected win rate delta, sample size, rank scope, and patch window.

Detailed info:

Top 1 Low Elo Riven Mid all-role weakest synergies

  1. Caitlyn ADC - Low Elo data: Riven Mid vs Caitlyn ADC, 48.4% observed win rate, -0.1 percentage points vs expected, 548 games, 3-patch window 26.16-26.18.

Top 1 High Elo Riven Mid all-role strongest synergies

  1. Kai'Sa ADC - High Elo data: Riven Mid vs Kai'Sa ADC, 52.6% observed win rate, +0.1 percentage points vs expected, 614 games, 3-patch window 26.16-26.18.