The Celtic forward fell in the box to earn his side a late penalty, with Mackay sent off as a result.
Boerrigter last night accepted the offer of a two-match suspension, a decision which appears to exonerate Mackay of any wrongdoing. The 33-year-old - who had appealed his dismissal - expects the SFA to confirm that his red card has been expunged from his disciplinary record.
"With Boerrigter being cited and offered a two-game ban surely there is only one decision to be made as far as my appeal is concerned," said Mackay, whose side have taken a French striker on trial this week. "I've got to wait to hear officially but surely my red card will be rescinded now. I've not heard a thing yet but I think it was the right decision to cite Boerrigter. It doesn't help us though. The game is done.
"I assume my appeal will be upheld now. I would be astonished if there was any other outcome."