Every Tipstrr site automatically generates Return on Investment for a multitude of sports, markets and tips. The process that generates these runs on a nightly basis due to the large number of calculations we have to make as we process all Tipstrr sites. At any time your ROI can be up to 24 hours out of date, so if the values are incorrect don't worry too much, they will automatically be updated overnight. Think of them as a snapshot of your ROI at a point in time.