The United States' Lindsey Jacobellis beat world champion Eva Samková of Czech Republic to first place in women's qualification as action begun today at the International Ski Federation (FIS) Snowboard Cross World Cup in Feldberg in Germany.
Jacobellis, who earlier this month was eliminated in the semi-finals at the FIS Freestyle Ski and Snowboarding World Championships in Utah, clocked a time of 52.75sec.
Samková finished just 0.03 seconds behind in the runners-up spot, while Italy's Michela Moioli was a further 0.65 seconds back in third.
Jacobellis and Samková are currently tied for top spot in the FIS Snowboard Cross World Cup standings with 1,800 points each.
Great Britain’s Charlotte Bankes, the world silver medallist ahead of Moioli, is third in the rankings with 1,000 points.
She ranked fourth today with a total of 16 athletes advancing to the final.
In men's qualification, Australia's Cameron Bolton came out on top in 49.74.
Canada's Éliot Grondin finished second in 50.34, while American Jake Vedder came third in 50.45.
Recently-crowned world champion Mick Dierdorff of the US qualified in fourth place, while World Cup leader Martin Noerl of Germany progressed after taking seventh spot behind Spain's Regino Hernandez and Australia's Alex Pullin.
A total of 32 athletes will contest the men’s final, which, like the women's, is scheduled to take place tomorrow.