Complex sentence: At the Olympics, Charisma put in a stellar dressage test, and went clear in both cross-country and stadium, winning the individual gold yet again, and beating the second-place horse, Sir Wattie, by the incredible margin of 10.20 penalties.
Split into simpler sentences: At the Olympics, Charisma put in a stellar dressage test, and jumped clear rounds in both the cross-country and stadium. He won the individual gold yet again, and beat the second-place horse, Sir Wattie, by the incredible margin of 10.20 penalties.