Ringel started his motorsport career in karting in 2008 and remained active until 2011 in this sport. 2011 moved stripes in the North American Formula racing. He competed in the Formula Enterprise and decided four races for themselves. In addition, he participated in four races of the F2000 Championship Series, scoring three top - ten finishes. After the season Ringel took part in Europe to test drives of the GP3 series. His driver coach Jay Howard encouraged him to take this step. For the 2012 GP3 Series season Marigold finally got a contract with Atech CRS GP. Marigold had no points and was 29th in the driver standings.
2013 Marigold returned back to North America. He received an Indy Lights Cockpit with Team Moore Racing.
- 2008-2011: Karting
- 2011: F2000 Championship Series (No. 26)
- 2011: Formula Enterprise
- 2012: GP3 Series ( No. 29 )
- 2013: Indy Lights