PIRATES asset Chris Holder has dates for his diary after the Grand Prix calendar for next year was released.

Holder is due to begin his world championship campaign in Warsaw on Saturday, May 12.

The 11-round series will arrive at a new venue in Hallstavik – home to Elitserien side Rospiggarna – on Saturday, July 7.

A fortnight later, the British Grand Prix is set to take place at Cardiff's Principality Stadium.

CALENDAR – May 12: Warsaw GP of Poland (Warsaw). May 26: Czech Republic GP (Prague). June 30: Danish GP (Horsens). July 7: Swedish GP (Hallstavik). July 21: British GP (Cardiff). August 11: Scandinavian GP (Malilla). August 25: Gorzow GP of Poland (Gorzow). September 8: Slovenian GP (Krsko). September 22: German GP (Teterow). October 6: Torun GP of Poland (Torun). TBC: Australian GP (Melbourne).

Meanwhile, Pirates asset Brady Kurtz has completed a move to Leszno ahead of his first full season in the Polish top flight.

The former Australian champion made his Ekstraliga debut for Rybnik midway through the last campaign.

And the 21-year-old looks set for a one-to-seven berth with Leszno.

Emil Sayfutdinov, Jaroslaw Hampel and Piotr Pawlicki are among Kurtz's new team-mates.