Background
He grew up in Despatch, Eastern Cape and completed his high school diploma at High School Despatch in 1982.
He grew up in Despatch, Eastern Cape and completed his high school diploma at High School Despatch in 1982.
He subsequently attended and completed a National Technical Diploma in Mechanical Engineering at Russell Road Technical College in Portuguese Elizabeth in 1989. His United States education include a Bachelor of Science in Management (2007) and Masters in Business Administration, Master of Business Administration in Health care Management (2011) from Indiana Wesleyan University.
He represented South Africa at the International Astronomical Union 100 km World Championships in 1993, 1994 & 1995. He was disqualified for taking over the counter cold medication, containing, phenylpropanolamine. lieutenant was a prohibited stimulant, but was removed from the banned list shortly after the disqualification.
He is now a dual United States and South African Citizen and living in the United States.
He was South Africa 100 km Champion in 1991. He is popular for his Comrades Marathon win in 1992. Mattheus finished the Comrades Marathon twelve times, 1987-1921st, 1988 – 7th, 1989 – 9th, 1990 – 32nd, 1991 – 6th, 1992 – 1st (but disqualified), 1994 – 11th, 1995 – 2nd, 1996 – 4th, 1997 – 1st (Comrades Marathon Champion), 1998 – 2nd, & 2000 – 154th. Mattheus is the only athlete to lose his Comrades Marathon Champion title and regain the title a few years later, improving on his 5:42:34, 1992 time with a 5:28:37 time.