Lorraine Bruce struck Gavin Currie, 25, while he was enjoying a night out with friends.
She ran into Mr Currie in her Ford Mondeo, sending him flying into the air, causing his head to hit her windscreen, smashing the glass, before he landed on the road.
He had crossed Main Street, in Neilston, East Renfrewshire, to withdraw money from a cash machine and was returning to the pub when he was struck.
Paisley Sheriff Court heard yesterday how Celtic fan Mr Currie, an electrician, had been in the nearby Killoch Bar with friends before an Old Firm match on December 28, 2011.
He headed to a friend's house nearby to take in the match, returning to the bar after his team's 1-0 victory in the Friday night fixture.
As they headed back to the pub, Mr Currie crossed the road to lift money from a cash machine.
Going back to the bar he was struck by Bruce's Ford Mondeo and died of his injuries the next day.
Bruce, of Neilston, brought her car to a halt just over 12m away. She admitted causing death by driving without due care and attention or without reasonable consideration for other road users yesterday.
Gordon Ritchie, defending, said the case was "a tragedy."
He asked Sheriff Sinclair to spare her jail but the sheriff called for reports and deferred sentence until next month.