Simplify the following text for a Grade 11 native English-speaking person.
Original: Before the tournament , Capablanca wrote that he had `` more experience but less power '' than in 1911 , that he had peaked in 1919 and that some of his competitors had become stronger in the meantime ; however , he finished undefeated , winning the mini-matches with each of his rivals , 2 Â 1\/2 points ahead of second-place Alekhine , and won the `` best game '' prize for a win over Spielmann .
Simplified: Before the tournament , Capablanca diffidently wrote that he had `` more experience but less power '' than in 1911 , that he had peaked in 1919 and that some of his competitors had become stronger in the meantime . In the event , he finished undefeated , winning the mini-matches with each of his rivals , 2 Â 1\/2 points ahead of second-place Alekhine , and won the `` best game '' prize for a win over Spielmann .