In temperatures in excess of 30 degrees, Draper had to have his blood pressure and pulse checked by medical officials during the match.
And moments after shaking hands with Marcos Giron following a hard fought 6-4, 3-6, 4-6, 6-0, 6-2 victory, he threw up.
A day after Andy Murray had limply bowed out in straight sets, it was a far better day from a British perspective, as Cameron Norrie defied his wrist injury to win in straight sets.
For Draper, it remains to be seen how well he recovers in time for a tough round-two match against No14 seed Tommy Paul after arguably the toughest win of his nascent career to date. But the 22-year-old was buoyed by having come through a difficult contest.
"Coming through my first five-set match in tough conditions gives me a world of satisfaction," he said.
Denne historien er fra January 16, 2024-utgaven av Evening Standard.
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Denne historien er fra January 16, 2024-utgaven av Evening Standard.
Start din 7-dagers gratis prÞveperiode pÄ Magzter GOLD for Ä fÄ tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg pÄ
In the eye of the storm A rich account of Britain's political chaos
Tim Shipmanâs fourth and final tome covers Johnson to Sunak, via Truss
Is this government full of amateurs?
Labour's hard landing has revealed a cabinet struggling with the basics
It's going to be weird when the national anthem plays, but I'm so proud to lead the United States
Emma Hayes closed the book on 12 trophy-laden years at Chelsea with her fifth consecutive Womenâs Super League title in May.
Can Guardiola fix 'fragile' City after latest implosion?
Rebuilding his ageing side will bea greater challenge than building it in the first place for one of the greats
London wins battle of the global city brands again...
...but the capital still has plenty of work to do ifit wants to keep that crown
At home with...Earl of East
The duo behind the fragrance brand have made a Leyton new-build their sanctuary
How evolution evolved: the risks and rewards of gene-editing technology
INDIA BLOCKspeaks to paediatrician and TV writer Dr Neal Baer about the controversial advancement
This beloved take on Dickens is a joyful gift that keeps on giving
AIl through a bright, bitter winter day I was smiling because I was coming to see Jack Thorne's adapAtation of Charles Dickens's story again.
Market merrymaking
Bundle up in your warmest coat, hat and mittens to visit the best Christmas markets in the UK.
Festive favourites
Perfect your Christmas spread with a vibrant spin on a seasonal staple.