Kristiansson began his professional career in 1990 at a Challenger tournament in Jerusalem , where he was eliminated in the second round against Martin Sinner . In the next few years he had little success in singles and doubles on the ATP Challenger Tour until he made it to the semi-finals of the Bergamo Challenger tournament in 1993 together with Tomas Nydahl . In 1994 he qualified for the Swedish Open , but lost to Andrei Tschesnokow in his first round game . In total, he achieved three double titles at Challenger level with changing partners. He also reached the finals at the Challenger tournament in Tampere in 1994 and 1996. He reached his highest scores in the ATP world rankings in 1993 with place 277 in singles and 1995 with position 123 in doubles.