Sheffield Tigers number one Jack Holder is tonight leading the Speedway World Championship after winning his first grand prix. The Australian won the meeting in Donji Kraljevic this evening to put himself two points clear of Jason Doyle, after what was the first meeting of this year’s GP series. It means he and Chris Holder, also a Sheffield rider, are the first brothers to have both won GPs in the sport. This evening he beat Jason Doyle, Freddie Lindgren and world champion Bartosz Zmarzlik. It... Read this story