Thank you for your feedback regarding having a champion history tracker for Pro Football Pick'em groups. We will pass it along to our team! While you cannot access past groups on your end, our support team has the ability to on their end. If you need to know who won your group in specific years, you can reach out to them and provide the group ID numbers from those specific years. The group ID number changes each year so if you do not know it for the year that you are looking for, you may be able to find it by looking through old emails. You can contact our support team via https://help.yahoo.com/kb/fantasy-football? >> Contact Us.