FOCUSED Chris Holder has warned his Grand Prix rivals he has underperformed on his way to the top of the world championship standings.

Pirates' Aussie star sits at the summit alongside reigning champion Tai Woffinden having made three straight finals in Krsko, Warsaw and Horsens.

However, the 28-year-old insists there is plenty more to come as he bids to win back the world title he memorably secured in 2012.

Sydneysider Holder, who rides in the fourth round of the series in Prague tonight (6pm BST), told the Daily Echo: "I always expect to be running up the front.

"The only thing that has surprised me is that I don't think I've been that great but have still managed to grind out some points.

"To be sitting at the top and not feeling like I'm going that well is positive and if I can improve and get to where I want to be, I think I could be pretty tough to beat.

"I haven't really managed to find that sweet spot yet.

"You can make silly mistakes which probably aren't that noticeable, either on the bike or with the set-up, but they can result in you throwing away one, two or three easy points.

"I just want to cut that out and be a bit quicker. I don't think I've really been the quickest guy yet, I've just always been in there."

Holder has only once hit double-figure points in six world championship rounds at Prague, making the semi-finals three times but never progressing further.

However, the Wimborne Road favourite insists those results do not mean he does not warm to the circuit in the Czech capital.

He added: "I've only ever had one really good night there. It's a tough track and like anywhere, you have to make good starts because it is tough to make up ground.

"I actually don't mind the track, I like it, I just haven't had the greatest of results there but, hopefully, I will turn that round this weekend.

"Consistency keeps you up at the top but the hardest part is staying there. You don't want to get too far away because it is hard to peg back points when the top guys are building momentum.

"It's so hard to get a run of points going and to be consistently the best guy. You can be for a few races and look unbeatable but then you can go backwards, so it's definitely one race at a time.

"We're in a good position at the moment so, hopefully, we can get a few more points on the board this weekend, keep that momentum and stay with the front-runners."

Meanwhile, Pirates rider Bjarne Pedersen enjoyed a strong meeting in Denmark on Wednesday as he scored 10 paid 11 for Holsted.

But that was not enough to prevent Pedersen's side suffering a 55-28 defeat.