Lots of people mentioning those who were “virtually unbeatable” but for 9 years 9 months and 9 days Ed Moses was totally unbeatable. 122 consecutive wins, 107 in finals and even after finally being defeated he replied with a further 10 consecutive wins.
If you want to beat Ed in this thread you need to find someone who remained undefeated for at least 9 years 9 months and 10 days.