Complex sentence: By breaking the world 3,000 m record, Foster brought international publicity to the new stadium and began a tradition of athletics competitions at the venue, which has since hosted the British Grand Prix (2003--10) and the European Team Championships in 1989 and 2000.
Split into simpler sentences: By breaking the world 3,000 m record, Foster brought international publicity to the games and the new stadium. The Gateshead Games were the start of a long athletics tradition at the venue, which has since included hosting the British Grand Prix (2003--10) and the European Team Championships in 1989 and 2000.