Replaydex

Replaydex — Battle Analytics for Pokémon Showdown
Turn your battle history into a powerful training tool. This extension automatically saves your replays on Pokémon Showdown and provides a complete analytics suite for competitive players, especially VGC.
Features:
🎬 Auto-save Replays — Your replays are saved automatically after every battle, including forfeits.
📊 Replay Panel — Browse all your saved replays directly inside Showdown, with opponent team icons, win/loss results, and filters by time period, format, and your team.
📈 Live Winrate — See your win percentage update dynamically as you apply filters.
🔍 Match Details — Expand any battle to see your lead, the opponent's lead, which 4 Pokémon each side brought (VGC), and the turn count.
🗂️ Training Sessions — Group battles into sessions to track your progress across tournaments, ladder runs, or specific practice blocks.
💾 Backup & Restore — Export and import your sessions as JSON so your data is never lost, even if browser storage is cleared.
⚗️ VGC Statistics (Experimental) — The most powerful feature: automatically analyses the most common 4-Pokémon cores in opponent teams and suggests your best lead and best bring-4 based on your historical winrate against each core.