A Mandan man changed his plea to guilty for a sexual imposition charge.
Thirty-year-old Derek Wisham was charged in July with a sexual imposition and assault.
Wisham admitted to raping a woman in June and leaving bruises all over her body.
Today in court, Wisham changed his pleas to both charges to guilty.
Before Wisham can be sentenced, a pre-sentencing investigation and a risk assessment must be performed.