While at Stanford Graduate School of Business, Fluhr entered the annual business plan competition with the idea of creating a trusted marketplace to buy and sell tickets for sporting events and concerts. Fluhr dropped out of school and co-founded StubHub in March 2000. By 2007, StubHub had over 400 employees, more than $600 million of gross merchandise volume and partnerships with many professional and college sports teams. Fluhr served as CEO until StubHub was acquired by eBay for $310 million in 2007.