Back in September, endurance events marketplace Let’s Do This (a YC alumni) raised a $5 million seed round from a number of U.S. investors, including Olympic star Usain Bolt and tennis star Serena Williams. As much as I’d like to get excited, this is slightly par for the course for a lot of sports-oriented startups … Continue reading Backed by Serena Williams and Usain Bolt, Let’s Do This raises $15M from EQT