Robinson and fellow guard Dustin Ware came through, helping their team hold on then pull away in the final seconds for an 83-74 win.
"We knew that we had to let our experience carry us towards the end of the game," said Robinson, a junior who transferred from Tennessee State. "It was a rough game, everybody was in foul trouble. So we just had to rally behind each other."
Robinson finished with a team-high 21 points, with his biggest points coming at the 1:32 left. Georgia had a two-point lead when Robinson drove from the left side and made a scooping layup.
Ware, a junior point guard, followed that with two free throws.
"They played like upperclassmen," Fox said. "In the last four minutes of the game they kept us organized, they made the right plays, and I thought defensively we were pretty solid."
Ware's free throws were an exception. In a foul-plagued game, the Bulldogs went 27-of-43 from the line. Chris Barnes, who otherwise had a good game (nine points and eight rebounds) missed five straight free throws at one point.
"Awful. Our free throw shooting was awful," Fox said. "I told our coaches in our staff meeting a few days ago that our free throw shooting was about to cost us. Because I have not been happy with our approach and the way we shoot in practice. Not to call myself Nostradamus, but I predicted that two days ago with our team."
Fox cited a lack of concentration and some technique issues too.
But he was pleased with the final result, and what it may mean for his team going forward.
Thompkins, dealing with a high ankle sprain, may not return until, or even after, next week's Old Spice Classic. Without their star, the Bulldogs have pulled out two straight close wins to open the season.
"It helps us to have experiences like this," Fox said. "Close, hard-fought games, and fortunately for us again we were able to win it. But I'm very proud of our kids tonight. The kids played well."
Georgia jumped out to an 18-4 lead, but Colorado tied it at the half on a 19-2 run. Then it was a close game until the final minute.
"You have to learn how to win those games," Robinson said. "It's easy to win blowout wins, big-lead games. But it's the experience of being able to play together that builds confidence for wins in the future."