Bartosz Zmarzlik became the fourth different winner this year as the Speedway Grand Prix series reached its half-way point – but there remains one constant, as Tai Woffinden was again in the final and has extended his points lead.

Bartosz Zmarzlik

Woffinden apologised to British fans after he failed to win the Adrian Flux British FIM Speedway Grand Prix at Cardiff’s Principality Stadium on 21 July, but he at least almost doubled his lead in the title chase.

Zmarzlik was not the only rider to turn in his best showing this season, as Polish rider Przemyslaw Pawlicki and Brit Craig Cook each qualified for the semi-finals for the first time.

After the heats, Zmarzlik (13) and Woffinden (11) led the way ahead of Greg Hancock and Patryk Dudek on 10 each.

Cook, Maciej Janowski and Pawlicki were all on nine, while Emil Sayfutdinov snuck into the semis, on countback, with just three scoring rides to finish on seven.

The all-Polish first semi-final saw Zmarzlik and Janowski oust Pawlicki and Dudek.

Woffinden won the second semi, while Hancock got the better of Sayfutdinov and Cook withdrew.

Zmarzlik led Woffinden home in the final while Janowski got around Hancock to claim third.

By Peter Whitaker