ECO C85: Ruy Lopez

ECO C85 is part of volume C — Open Games. The Lichess chess-openings dataset files one named line under it. It is Ruy Lopez: Closed, Delayed Exchange: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6.

That position has come up in 79,883 Lichess games between players rated 1600 to 2500: White won 51.3%, 6.8% were drawn and Black won 41.9%.