Yes you can.
Steve Jones (World Half Marathon Best, World Marathon best, missed out on Carlos Lopes' World Marathon record by 1 second, Chicago Marathon winner x2, London Marathon winner, New York Marathon winner, Boston Marathon 2nd, Commonwealth Bronze 10,000m...) did.
From:
https://spikes.iaaf.org/post/steve-jones-iconic-welshman
"On 11th August 1985 the RAF technician from the former steel town of Ebbw Vale shrugged off the grogginess and secured the AAA Half Marathon title, clipping 18 seconds from American Paul Cummings’ world record in the process. It was a performance that was typical Jonesey.
“If you believe the myths and legends [I drank] ten pints of cider, but it was probably closer to five or six pints,” recalls Jones, who had been attending the wedding of his best friend in Swansea on the eve of the race.
After the wedding wrapped up at midnight, Jones, then 29, was in bed in Cardiff by about 1am. Early the next morning he made a journey of around 115 miles north east across the English border to Birmingham.
“I was pretty fit at the point, [the alcohol] didn’t seem to affect me, judging by how I ran,” he remembers. “I may have been a little sluggish warming up, but usually when I put on my racing gear on and the gun went off, I was a different animal.”
The approach and attitude he adopted that day was no different to the dozens and dozens of races that came to define the Welshman. “I went to the front and ran hard,” he recalls. A little over one hour later he was a world record holder.
Fuelled on a non-diet of meat pies, Coca Cola and Mars bars, Jones was an uncomplicated but utterly compelling athlete. For a period during the mid-80s he was the most feared marathoner on the planet.
Surely, Steve Jones isn't the only runner to eat like this and perform well.
What are your own personal (anecdotal?) stories with regards to this topic?