Sebastian Constantin was also active on the artificial track and took part in a Junior World Cup race in Igls in winter 1999/2000 . In the single-seater he took 32nd place out of 34 rated tobogganers in his age group and eleventh place out of 13 rated couples in the double-seater with Marian Negotei . He did not have any other international assignments on the artificial track. In the winter of 2003/2004, Constantin and his former double partner on the artificial track, Marian Negotei, took part in several natural track luge competitions. After he was registered for the 2004 European Championship in Hüttau , but in contrast to Negotei, he did not start, he then took part in the last two World Cup races of the 2003/2004 season. Both in Triesenberg and at the finals in Aurach , he finished last with places 30 and 33. In the overall World Cup he finished tied with the American Adam Sladek in 52nd place out of a total of 59 tobogganists who won World Cup points this winter. After that Sebastian Constantin did not take part in any international competitions.
Romania