A Michigan State Police scientist linked Raynard Coleman's DNA to the attacks. Judge Kenneth King also heard Friday from women who said they were victims.
King found probable cause to order trials for five rapes and an attempted rape. Coleman is charged with more than 30 crimes, including kidnapping and illegal use of a weapon.
Police say the women were attacked on Detroit's east and northeast sides in January. The 31-year-old Coleman was paroled in 2009 after serving 14 years in prison for attempted murder and other crimes.