Roberto Calderin - International Master of Chess
Meet Roberto Calderin, or as the online chess world knows him, matanzas1967. Holding the esteemed title of International Master granted by FIDE, Roberto has carved a niche for himself in the electrifying arenas of Rapid, Blitz, and Bullet chess formats.
Known for his ferocious playing style and an almost supernatural comeback rate of 91.65%, Roberto is a player who rarely throws in the towel early - with a minuscule early resignation rate of just 0.78%. When the game goes down to the wire, he thrives, boasting an impressive endgame frequency of 85.09% and a flawless 100% win rate after losing a piece. Talk about turning the tables!
His chess journey has seen thrilling peaks, such as a stunning peak Blitz rating of 2717 in 2021 and an equally fearsome Bullet max rating of 2553 in 2020. Roberto’s Rapidity is nothing to scoff at either, with a Rapid high of 2531. This master’s game is built on deep strategy combined with lightning-fast reflexes.
A strategic mind with patience of a saint, Roberto’s average moves per win hover around 76, while his losses tend to drag longer, suggesting fights full of drama and suspense. He enjoys a slight edge playing White with a 58.45% win rate, but his Black pieces don’t feel neglected either at 53.94%.
Roberto’s fans and foes alike marvel at his longest winning streak of 24 games, which would make even the boldest grandmasters blink twice. Currently, his winning streak stands at a fresh 1 game: it’s safe to say this International Master is always hungry for more victories.
Off the board, Roberto is a tactical wizard with a heart of gold and a quirky sense of humor that can probably checkmate you with a smile. Whether blitzing through thousands of games or taking his time in intense rapid battles, Roberto Calderin is a shining example of dedication, resilience, and passion in the chess universe.
Coach's Advice
It's been a while since you played. Play a few more games so we have more positions to review — then I can provide you with clearer, more actionable advice.
🆚 Opponent Insights
| Most Played Opponents | ||
|---|---|---|
| Alan Stein | 116W / 94L / 14D | |
| Christian Stevens | 82W / 105L / 10D | |
| leo carlos | 68W / 60L / 7D | |
| Florescu Codrut Constantin | 51W / 38L / 2D | |
| Velin Belev | 57W / 26L / 1D | |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2160 | 2061 | ||
| 2023 | 2059 | 2059 | ||
| 2022 | 2101 | 2478 | 2058 | |
| 2021 | 2176 | 2578 | 2106 | |
| 2020 | 2200 | 2703 | 2511 | |
| 2019 | 2501 | 2521 | ||
| 2018 | 2379 | 2094 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 8W / 1L / 0D | 7W / 0L / 0D | 57.0 |
| 2023 | 13W / 7L / 2D | 11W / 11L / 4D | 66.6 |
| 2022 | 29W / 3L / 1D | 29W / 6L / 0D | 72.6 |
| 2021 | 760W / 469L / 79D | 668W / 533L / 99D | 83.7 |
| 2020 | 2811W / 1820L / 298D | 2614W / 2057L / 284D | 84.8 |
| 2019 | 2566W / 1573L / 155D | 2386W / 1740L / 155D | 81.3 |
| 2018 | 111W / 58L / 6D | 103W / 65L / 7D | 78.1 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Modern | 1231 | 640 | 521 | 70 | 52.0% |
| Modern Defense | 890 | 504 | 337 | 49 | 56.6% |
| Czech Defense | 836 | 471 | 322 | 43 | 56.3% |
| Pirc Defense: Classical Variation | 523 | 273 | 213 | 37 | 52.2% |
| Australian Defense | 458 | 252 | 176 | 30 | 55.0% |
| Colle System: Rhamphorhynchus Variation | 357 | 207 | 129 | 21 | 58.0% |
| Slav Defense: Alekhine Variation | 351 | 205 | 124 | 22 | 58.4% |
| Gruenfeld: Exchange Variation | 279 | 160 | 97 | 22 | 57.4% |
| East Indian Defense | 260 | 148 | 99 | 13 | 56.9% |
| King's Indian Defense: Orthodox Variation, Classical System, Benko Attack | 200 | 124 | 66 | 10 | 62.0% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Modern | 6 | 3 | 2 | 1 | 50.0% |
| Scandinavian Defense | 4 | 3 | 0 | 1 | 75.0% |
| Sicilian Defense: Accelerated Dragon | 3 | 2 | 0 | 1 | 66.7% |
| French Defense: Advance Variation | 3 | 3 | 0 | 0 | 100.0% |
| Sicilian Defense: Closed | 3 | 3 | 0 | 0 | 100.0% |
| Australian Defense | 2 | 2 | 0 | 0 | 100.0% |
| Bird Opening: Dutch Variation, Batavo Gambit | 2 | 2 | 0 | 0 | 100.0% |
| Giuoco Piano: Tarrasch Variation | 2 | 2 | 0 | 0 | 100.0% |
| QGD: 4.Bg5 Be7 5.cxd5 Nxd5 | 2 | 1 | 0 | 1 | 50.0% |
| QGD: Ragozin | 2 | 2 | 0 | 0 | 100.0% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Colle System: Rhamphorhynchus Variation | 697 | 410 | 265 | 22 | 58.8% |
| Modern | 597 | 332 | 246 | 19 | 55.6% |
| Hungarian Opening: Wiedenhagen-Beta Gambit | 422 | 252 | 158 | 12 | 59.7% |
| Australian Defense | 371 | 212 | 142 | 17 | 57.1% |
| Czech Defense | 344 | 203 | 126 | 15 | 59.0% |
| King's Indian Attack | 299 | 189 | 101 | 9 | 63.2% |
| Amar Gambit | 282 | 159 | 114 | 9 | 56.4% |
| Modern Defense | 276 | 171 | 98 | 7 | 62.0% |
| English Opening: Symmetrical Variation | 179 | 99 | 70 | 10 | 55.3% |
| King's Indian Attack: French Variation | 176 | 112 | 55 | 9 | 63.6% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 24 | 7 |
| Losing | 10 | 0 |