Meet jozko branko
jozko branko, known online as speed4fun, is a FIDE International Master who treats the digital chessboard like a playground. Their preferred time control is Rapid, but the account name says it all: speed is the mission, and results are the proof. In Rapid play, jozko has posted a sparkling 53 wins, 6 losses and 2 draws, with a strength-adjusted win rate just under 87%.
A grinder disguised as a sprinter
Despite the love of fast clocks, jozko branko is not afraid to go long. Their games reach the endgame in roughly 84.69% of cases, and the average winning game stretches to about 78 moves. The longest winning streak has reached 24 games, and the comeback rate is an eye popping 85.15%. Even after losing a piece, jozko still wins 51.63% of the time. This is a player who treats every position like it is still alive.
Openings and old rivals
On the opening menu, look for plenty of Sicilian Defense structures and a steady diet of the Caro-Kann Defense, plus some offbeat lines that seem chosen purely for entertainment value. The Rapid results include perfect scores with the Döry Defense and the Sicilian Taimanov American Attack, which shows a willingness to explore beyond the well trodden path.
Rivalries help define any competitor. jozko has faced ZURAB AZMAIPARASHVILI more than anyone else, collecting 29 wins, 10 losses and 4 draws in 43 meetings. On the painful side, Arkadiy Khromaev has been a genuine wall, dominating the series with 31 wins against just 3 losses for jozko.
The 2 AM advantage
jozko does some of their best work when the rest of the world is asleep. Their highest win rate by hour of day comes at 02:00, with a 70.37% success rate. The Blitz graph shows the same relentless upward energy:
. At one point jozko reached a Blitz peak of 3036 (2026-08-27), which is a polite way of saying that speed4fun should be taken seriously, no matter what time the clock says.