Mason Jiang: The Blitz Marathoner
Mason Jiang, better known on the board as YukinoY, is a blitz chess phenomenon. Since 2015, Mason has played over 34,000 rated blitz games, grinding from a shaky 948 rating to a peak of 2404 (2026-05-22). The journey looks less like a rocket and more like a very dedicated staircase: years of 400-game months, nasty losing streaks, and a stubborn habit of coming back.
A Decade of Volume
Mason's first recorded month, February 2015, was humble: two games, two losses. March 2015 tells the real story: 750 blitz games in a single month. This is a player who improved by simply refusing to stop playing. The rating chart shows a slow, bumpy climb from the 900s to the 2400s, with the biggest surge arriving in 2026.
- Over 34,000 rated blitz games
- Peak blitz rating of 2404 (2026-05-22) in May 2026
- Longest winning streak: 17 games
- Longest losing streak: 12 games
Unorthodox Openings, Endgame Wars
Mason's repertoire is a museum of offbeat lines. As White, the Blackburne Shilling Gambit appears over 900 times, alongside the Scandinavian Defense and the Australian Defense. As Black, the Czech Defense and the Modern are staples, with the French Defense showing up in countless variations.
These openings lead to real battles rather than cheap tricks: about 75% of Mason's games reach the endgame, and wins average around 74 moves. Early resignations are rare at just 1.4%, and a comeback rate of 86.33% means losing a piece is rarely the end of the story. Here is the kind of trap Mason loves to set with the Blackburne Shilling Gambit:
Rivalries and Revenge
No biography is complete without rivals. Mason's most frequent opponent is cleee43, who has won 50 of their 63 meetings, a true nemesis. On the flip side, sopark99 has felt Mason's wrath: 23 wins in 27 encounters. Mason's overall record is remarkably balanced, with a slight edge as White at 51.03% compared to 48.13% as Black.
Hours of the Hunter
Mason is at their best in the morning, with win rates peaking around 08:00 and 09:00. The tilt factor sits at 12, meaning a bad beat can sting, but the sheer volume of games shows an ability to keep coming back to the board, month after month, year after year. For Mason Jiang, blitz is not a pastime. It is a lifestyle.