Months of hard training and a spell in a heat chamber will be put to the test today when Sophie Hahn begins her IPC Athletics World Championship campaign.
The 18-year-old is straight into action on the opening day in Qatar when she bids to retain the 100m gold she won in dramatic fashion two years ago.
The 200m follows a week today followed by the relays which will close the nine-day championships.
Hahn went into the previous world championships, in Lyon, France, as a virtual unknown having been involved in the sport for less than a year.
But after crashing the party with a surprise 200m silver, she pulled out a spectacular performance in the 100m final, taking gold in a world record time.
This time around, however, the hunter will be very much the hunted as she bids to complete a hat-trick of gold medals over the two distances and the sprint relay.
Part of her preparations for the desert heat and humidity of Doha has been to spend time acclimatising in a heat chamber back in Loughborough.
Hahn, who has cerebral palsy, will be fired by disappointment at last year’s European Championships when her chief rival, Margarita Gonchorova, of Russia, pipped her to the gold in all three events.
But Hahn has been in superb form this year and in her last major international outing lowered her own world record to 13 seconds flat to land Anniversary Games victory at the Olympic Stadium.
While defeating her Russian rival and securing gold will be her top priority in Qatar, becoming the first athlete in her T38 category to break the 13-second barrier will also be on her radar.
And if she beats her fierce rival Gonchorova, the record may well fall once more.
* The championships will be broadcast live on TV channel More 4.