Eleven European Champions will return to Berlin for Germany’s major athletics meeting on Sunday: The ISTAF will see its 77th edition in the Olympic Stadium, which was the venue of the continental championships earlier in August. An athlete who produced the stand-out performance at the ISTAF a year ago will also return to the German capital. Caster Semenya ran a world-best for 600 m in 2017 and now features in the 1,000 m, an event where ISTAF made history back in 1990. Two athletics stars will end their careers on Sunday in the Olympic Stadium: Kim Collins and local hero Robert Harting. The ISTAF is part of the IAAF World Challenge Series.