The Sooners beat Alabama in the first game of the World Series' three-game championship series, but lost the next two, along with the national title.
In Game 3, Oklahoma jumped to a 3-0 lead, and Ricketts struck out five of the first six Crimson Tide batters she faced.
But following a 13-minute weather delay, the Sooners lost all their momentum, and ultimately fell 5-4.
“After the game, after it happened, it definitely was really painful to think about,” said Ricketts, who was 37-9 in the circle with a 1.08 ERA last season.
“But we just had to accept that it wasn't our destiny to win. ... I don't want to forget about it because we can use it as a tool to boost our determination.”