David Weir, racing on less than three hours' sleep, began his bid for a second gold medal of the London Paralympics by safely qualifying for the final of the 1500 metres.
The 33-year-old athlete sent the decibel levels at the Olympic Stadium though the roof by claiming a brilliant T54 5,000m victory on Sunday night and his return to the track was greeted by another huge ovation.
The Londoner did just enough to make it through, coming home in third place in three minutes 11.35 seconds.
Swiss world record holder Marcel Hug won the heat in 3mins 11.17secs, with Thailand's Prawat Wahoram second.
Weir, who is going for four golds in London, said: "I feel quite fresh actually, which is surprising. When they upped the pace I didn't feel like I was struggling at all. Maybe I should have come round Marcel, but I didn't realise Prawat was coming up so quickly.
"I had bags of speed in my arms, that just shows you how fit I am. A lot of it's adrenaline as well from last night."
With no Britons contesting finals on Monday morning, Weir's return to the track was the highlight of the session.
Mickey Bushell, the Beijing silver medallist, cruised into the final of the T53 100m, winning his heat with plenty to spare in 14.86s. The 21-year-old, who was born with seven vertebrae missing from the lower part of the back, goes for gold on Monday night.
Elsewhere on the track David Devine looked mightily impressive as he won his T12 800m first-round race in 1:55.97.
Sixteen-year-old Jade Jones finished sixth in her T54 400m heat to miss out on a place in the final.