Dekker was Wisconsin’s second-leading scorer last season, averaging 13.9 points and 5.5 rebounds per game.
This season, Dekker was a second-team All-Big Ten selection and was named the Most Outstanding Player of the NCAA tournament's West Regional. His three-pointer with 1:42 left against Kentucky in the national semifinal gave the Badgers the lead for good en route to toppling the previously unbeaten Wildcats.
He had 12 points and eight rebounds in the 68-63 loss to Duke in the National Championship game.
"These past three years have been the best, most memorable years of my life," Dekker said. "Growing up in the state and being able to wear Wisconsin across my chest has been a dream come true.
"After lots of thoughts and prayers, I've decided that it is in my best interest to enter the NBA draft at this time," Dekker added. "It is difficult to leave Madison and the only state I've called home, but I'm excited for the next chapter of my life."
Dekker finished with 1,363 career points, increasing his point average in each of his three seasons at the school.
- Scooby Axson