ST. JOSEPH — Robinson held St. Joseph-Ogden scoreless for 10-plus minutes in the second half, but it felt like it would never end.
The Maroons went on a 25-0 run and defeated the Spartans 57-32 to advance to Friday's Class 2A sectional championship game against Teutopolis.
"We took poor shots but credit goes to them. They were outstanding ... they played physical — not dirty, just physical — and that bothered us a lot," Spartans coach Brian Brooks said. "They killed us on the glass, and we didn't respond well. We took contested threes when we needed to get the ball inside."
The Maroons (23-7) capitalized on their size advantage in a manner reminiscent of their most decorated alum, Meyers Leonard, who attended the game. Robinson outrebounded the Spartans 35-13 and outscored SJ-O 40-22 in the paint.
"We've hung our hat on rebounding all year," Maroons coach Mack Thompson said.
The Spartans (23-8) looked inspired after intermission. Nate Michael drained a three-pointer and Chase Patton followed with basket. The score was 30-28 and SJ-O had hopes of a comeback.
The Maroons then held the Spartans without a basket for 10-plus minutes.
Robinson senior Zachary Danks put an exclamation point on the run with his breakaway dunk off an SJ-O turnover.
"That took the wind out of their sails. You could see their shoulders slump after the dunk," Thompson said.
Louis Acklin led the Spartans with seven points.
"If someone would have told me back in June we'd have 23 wins and be playing in the sectional I would have told them they were nuts," Brooks said. "We learned a lot getting here, and we've learned how far we have to go to get where we want to be next year."