CM Jacob D Yoon Full name Jacob D Yoon Born 2006 (age 19) Place of birth Federation England Profiles #4571 World Ranking 2160 Classical 2006 Rapid 2029 Blitz Rating Bio Most Played Openings White Pieces Sicilian Defense: Delayed Alapin Variation (3 games) Richter-Veresov Attack (2 games) Queen's Pawn Opening: Chigorin Variation (2 games) Ruy López Opening: Morphy Defense, Closed, Martinez Variation (2 games) Indian Game (1 games) Black Pieces Sicilian Defense: Kan, Modern Variation (4 games) Queen's Pawn Opening: Horwitz Defense (2 games) Queen's Gambit Declined: Chigorin, Main Line (1 games) English Opening: Agincourt Defense (1 games) Queen's Pawn Opening: English Defense (1 games) Games Players Result Moves Year Jacob D Yoon (2250) Nicolas Skettos (1961) ½-½ 34 2025 Jacob D Yoon (2203) Stuart C Conquest (2511) 0-1 56 2025 Jacob D Yoon (2250) Jose Fernando Cuenca Jimenez (2495) 0-1 44 2025 Jacob D Yoon (2250) Adam Nawalaniec (2211) 0-1 42 2025 Jacob D Yoon (2250) Neil Berry (2261) 0-1 55 2025 Jacob D Yoon (2250) Matthew J Wadsworth (2484) 0-1 56 2025 Jacob D Yoon (1980) Stanley Badacsonyi (2297) 0-1 64 2025 Jacob D Yoon (1980) Nikita Vitiugov (2586) 0-1 37 2025 Jacob D Yoon (2203) Koby Kalavannan (2323) 0-1 40 2025 Jacob D Yoon (2264) David Henry Maycock Bates (2284) ½-½ 62 2025 Show All Games