Rafail Antoniou: The Marathon Man of Online Chess
Rafail Antoniou, known online as RantomOpening, is a FIDE Master with a serious appetite for online battle. His account looks like a 24-hour chess festival: tens of thousands of games, an endless love for the Sicilian Defense, and an opening repertoire that often feels like a treasure hunt. When he isn't grinding Blitz until the rook checks make him dizzy, he claims his preferred time control is Daily. The data politely disagrees, but who are we to question a titled player?
From Unknown to 2900
Antoniou's rise on the platform is the stuff of sheer volume. His earliest recorded Blitz month begins around 1073 and, within a few weeks, he is already touching four figures with ease. By late 2025 and early 2026, his Blitz rating pushes past the 2900 mark, with a peak rating of 2952 (2025-12-09) in Blitz and 2903 (2025-08-25) in Bullet. Meanwhile, his Rapid rating peaks at 2433 (2025-08-25), and Daily, his stated favorite, reaches 1519 (2024-10-19). The man simply plays a lot of chess.
Opening Repertoire: Sharp, Unusual, and Loud
If there is a central theme to Antoniou's openings, it is that normal is overrated. As White, he frequently opens with 1.e4 and 1.c4, but also happily ventures into the Amar Gambit and assorted flank openings that make database purists wince. As Black, he leans heavily on the Sicilian, especially the Alapin and Taimanov variations, and he has hundreds of games in the Benoni Defense. His most trusted weapon globally is the Sicilian Defense: Alapin Variation, with over 2,000 Blitz games alone.
- Amar Gambit: an opening that screams "let's make this weird."
- Sicilian Defense: Alapin Variation: his bread, butter, and dessert.
- Benoni Defense: for when he wants the board to look like abstract art.
One of his trademark lines can be seen below, a modest Alapin setup that appears all over his match history.
Rivalries and Scoreboards
Antoniou has played marathon sets against a rotating cast of online regulars. His most frequent dance partner is ernestoguevaralynch, with 125 meetings, a rivalry so balanced it could be a movie script. Then there is daniilx2, his most satisfying matchup by score: 120 games, with Antoniou winning 99 of them. If you see those two at a virtual board, assume the result is already in the mail.
Numbers and Curiosities
Antoniou is not just active, he is statistically fascinating. He has analyzed over 30,000 games, delivered checks most often with the rook, and reached the endgame in more than 80% of his games. His average winning game stretches beyond 90 moves, which explains why his tournaments feel like board game endurance marathons. His comeback rate is an absurd 89.5%, meaning he thrives on chaos.
The Daily Contradiction
For a player who has played only a handful of Daily games, Rafail Antoniou insists that Daily is his preferred time control. Maybe he means it in theory, the way someone prefers salads but lives on pizza. His Daily rating peak sits near 1519 (2024-10-19), and his Longest Winning Streak is 30, so if he ever decides to fully embrace the slow life, opponents should worry. Until then, he will likely continue his 6 AM Blitz sessions, as his numbers suggest 06:00 is his best hour. Set your alarms accordingly.