Schwaar's first international tournament was the 1989 World Junior Championship in Vang . There he reached the 38th place in the Gundersen. A year later at the Junior World Championships in Štrbské Pleso he won the silver medal in Gundersen and the bronze medal in the team competition. In 1992 he made his debut in the Nordic Combined World Cup . After several good placements, including some placements in the top ten, he finished the 1992/93 season in 16th place overall. In the Nordic World Ski Championships 1993 in Sweden's Falun he was part of the squad, but started in any competition. In 1993 and 1994 he was runner-up at the German Nordic Combined Championships. The 1993/94 season he finished after further good performances in 31st place in the overall standings. After he started in the B-World Cup for some time and reached 5th place in the overall ranking in the 1994/95 season, he ended his active career.