Career
Tishman successfully representing Israel at the 2009 European Under-18 Championships in France, leading the team with 8.3 points, 4.0 rebounds and 2.3 assists for the tournament. Tishman had to be cleared by the National Collegiate Athletic Association because of his international status, and it was not until October 2009 that he could play for the team Tishman returned home after the 2009-2010 season to play professionally after playing limited minutes, the last game being against the Louisiana State University Tigers.
Tishman did not play during the 2010-2011 season.
He went undrafted during the 2011 National Basketball Association Draft. In July 2011 Hapoel Gilboa Galil signed him to a contract.
On July 27, 2015 he was signed by Maccabi Kiryat Gat after playing for Hapoel Gilboa Galil from 2011-2014.