The Ultimate Championship and Athlos have stirred debate among purists, according to Athletics Weekly. The events aim to engage new audiences with unique formats and high-profile athletes.

The Ultimate Championship, despite imperfections, was deemed a success for its ambitious approach. Athletes enjoyed the party atmosphere and high prize money, contributing to strong performances. Read more racing coverage.

Athlos, focusing on women athletes, seeks to celebrate and showcase talent. It has successfully piqued interest among younger viewers, potentially broadening the sport's appeal. Related: Jeffrey Archer, Author and Former Sprinter, Dies Aged 86.

This original Runner World brief is based on reporting from Athletics Weekly. Visit the source for its complete reporting, context and any later corrections.