Originally from the UK’s Lake District, Callum Jury has carved out a niche as a premier live reporter across the Southeast Asian poker circuit. Since 2025, he has delivered high-level coverage for major brands like the APT, PokerStars, and the WSOP, blending a background in business with a deep-rooted passion for storytelling. As a key member of the Somuchpoker team, Callum uses his sharp eye for photography and media to bridge the gap between technical hand histories and the raw human drama of a high-stakes deep run.

Updated: 2026.02.26

Masashi Oya is the leading force in Japanese professional poker and the undisputed #1 player on Japan’s all-time money list. A World Series of Poker (WSOP) bracelet winner and a feared regular on the Triton Poker Series, Oya has shattered records for Asian players in the high-stakes circuit. Known for his technical brilliance and “fearless” high-stakes entries, he famously secured Japan’s first-ever Ultra High Roller victory at WSOP Paradise, solidifying his status as a global poker icon.

Career Earnings & Biggest Results

With total live tournament earnings surpassing $10,300,000 (according to The Hendon Mob), Oya is the first Japanese player to cross the eight-figure milestone. His career-best score of $2,940,000 was achieved with a dominant victory in the 2023 WSOP Paradise $100,000 Ultra High Roller, where he also captured his first WSOP bracelet. Oya is a consistent force at the Triton Poker Series , with notable results including a 4th-place finish in the 2025 Triton Jeju $30,000 NLH for $447,000. His momentum has stayed strong through early 2026, recently finishing 9th in the Triton Jeju $125,000 Main Event for $302,000. His rapid ascent and high-stakes consistency contribute to an estimated poker net worth of over $12 million.

Biography & Poker Background

Born and raised in Japan, Oya’s rise to the top of the poker world has been remarkably swift. Unlike many veterans who have played for decades, Oya burst onto the international scene in 2021 and immediately began competing at the highest buy-in levels. He first made waves by winning a Mid-States Poker Tour (MSPT) title at the Venetian for $161,780, a victory that signaled his transition from an online enthusiast to a live crusher. Residing in Tokyo, Oya has become a symbol of the “Japanese Poker Boom,” inspiring a new generation of players in his home country. He is frequently seen at World Series of Poker (WSOP) and PokerGO Tour events, often accompanied by a tight-knit group of Japanese pros who celebrate his historic achievements.

Play Style & Strategy

Oya is celebrated for a “calculated, aggressive, and highly modern” play style. His strategy is deeply rooted in Game Theory Optimal (GTO) principles, allowing him to compete against the world’s most technical players in “nosebleed” stakes. He is particularly renowned for his fearless bluffing, once famously running a massive pure bluff against veteran pro Shannon Shorr at a PokerGO final table. Oya’s approach is characterized by exceptional mental stamina and a low-ego philosophy; he often studies his own hands with solvers immediately after a session to find technical edges. Whether navigating a $250,000 Triton Invitational or a WSOP High Roller, Oya’s strategy revolves around technical balance and a relentless ability to apply pressure in the most expensive pots on earth.

Want to follow the Japanese “End Boss” as he continues to make history and climb the global rankings? You can find his profiles and stats here: