Bogdan Dragusin (madox13): A Chess Marathoner's Biography
From Casual Start to 2500 Peak
Bogdan Dragusin, better known online as madox13, has built one of the most durable chess careers on the platform. He began quietly in 2011 with daily games, and by 2015 his blitz rating hovered near 1200. Years of relentless play transformed him into a 2500 level force. The chart traces that long climb from club battler to expert. His listed preference may be Rapid, but the blitz and bullet archives are where the legend was truly forged.
Opening Repertoire
Dragusin is a devoted 1.e4 player. As White he has faced the Sicilian Defense thousands of times, and he scores well against the French Defense and Caro-Kann Defense. As Black he leans on the Modern Defense, the Philidor Defense, and the Czech Defense. He also has a soft spot for the offbeat Barnes Opening, proving that he enjoys the road less traveled.
Rivalries and Grit
No profile of madox13 is complete without his marathon duel with Aleksandar Dovijanic. They have faced each other 150 times, with dovijanic holding the upper hand. He has also battled KF3WIN and BChain21 exactly 100 times each. These long rivalries reveal a player who never dodges a rematch. His comeback rate is 87.62% and his endgame frequency is near 87%, so he routinely outlasts opponents into the technical phase. His tilt factor of 12 suggests a bad beat can sting, but the 15 game winning streak shows he always bounces back.
Career Highlights
- Peak blitz rating of in April 2026.
- Peak bullet rating of in December 2025.
- Longest winning streak of 15 games and a 12 game losing skid that never broke him.
- Stronger with White at 50.98%, and a 60.82% win rate against lower rated opposition.
- Over 100,000 analyzed games, with his best play coming at 3 a.m.