Genoa now needs a point against Napoli to earn promotion to the Serie A.
Gasperini said: “We are sorry we failed to finish the many opportunities we had in that game.
He added: “It was very hot and a defeat is not an absurd result, but I am unhappy with the fact that we conceded the goal in injury time.
“We have scored many times this year but today we were unable to do so, maybe that was our fate. We have earned 78 points so far and broken several records, we don’t have any regrets.”