Roberto Junio Brito Molina: The Blitz Marathoner
Introduction
Roberto Junio Brito Molina, better known online as RobertoJBM, is an International Master with a serious appetite for speed chess. His preferred battlefield is blitz, where he has played more than 24,000 games and collected over 11,800 wins. His peak blitz rating of 3023 (2026-08-11) places him among the most dangerous online attackers.
The Blitz Grind
If you look at his blitz history, you will see a long, steady climb. He started in the 2,300s, crossed 2,600 in 2018, and eventually reached the 3,000 level.
shows that journey in all its noisy, high volume glory. His longest winning streak is 44 games. His longest losing streak is 36. Both numbers prove he never stops playing.Opening Laboratory
RobertoJBM is not afraid to repeat himself. His opening stats show a deep commitment to the Caro-Kann Defense, especially the Karpov Variation, and a love for the Colle System as White. He also plays the Döry Defense and the Amazon Attack with surprising frequency.
gives a quick look at the openings that have carried him through thousands of battles.Rivalries
No marathon runner is complete without rivals. His most played opponent is Leo Bispo, with 542 games and a dominant RobertoJBM record of 386 wins. The battles against Krikor Sevag Mekhitarian and Safal Bora have been tougher, with both opponents holding a narrow edge. Yet he keeps showing up for more, which may be the most dangerous quality of all.
Marathon Man
His style is built on endurance. His average winning game lasts about 96 moves, and his endgame frequency is very high. He wins 86.36% of games after falling behind, and he wins nearly half of them even after losing a piece. His most common checking piece is the rook, and when he delivers the first check, he wins 58% of the time.
For anyone hoping to catch him cold, the data offers a few clues:
- His best hour is 10:00, so avoid that window.
- His worst hour is 11:00, when his win rate drops sharply.
- He is a weekend warrior, with stronger results on Saturday and Sunday.
- He rarely finishes by checkmate, preferring to grind out resignations.
Roberto Junio Brito Molina is proof that in online blitz, volume, patience, and a favorite opening can take you very far.