Simone Biles generated $18.3 million in social media value via posts that she made between Jan. 1 and July 7 on her personal Twitter and Instagram accounts, according to a Sports Business Journal analysis of data provided by Zoomph. The calculations are based on Zoomph’s formula that takes into account the number of followers, posts, impressions, engagements and other factors. Twitter posts generally reach more eyeballs than Instagram, but followers are more likely to engage with an athlete’s Instagram post than they are a with a tweet. The lists include projected U.S. Olympic athletes who do not play for a professional