Alexander Costello
San Diego
क्लब
Chess.com Legends Club
26,47,161 सदस्य
Chess.com Verified Titled Players
10,281 सदस्य
Olympic Esports Series - Trials
8,747 सदस्य
PRO Chess League
21,068 सदस्य
California Golden Bears Chess Club
1,088 सदस्य