In a world where wrestlers perform on television weekly or sometimes even more frequently, it's very tough to keep an issue going more than a month or two before it's blown off on a pay-per-view. But this Top 50 list celebrates those rivalries that have endured, be it for half a year or several years.
To be clear, length of time is not the only form of measurement here, as it would be unfair to compare grudge matches and feuds from 20 or 30 years to the ones today using endurance as the only metric.
What we're looking for here is rivalries that stand the test of time and may have even crossed over into more than one promotion, drawing serious money for both competitors (or multiple competitors in some tag team rivalries) over a prolonged period.
In counting down the Top 50 Long Running Rivalries, Wrestling Merchandise and Memories looked at the following criteria:
How long did the rivalry last, relative to others in the same promotion and time period?
Did it produce memorable matches and angles?
Is it recognized as a top feud for either competitor's career?
What kind of impact did have on the promotion (or promotions) where it was featured?
As always, we want YOU to be a part of the conversation! Leave a comment below, or let us know on Twitter (@CanadianBulldog) using the hashtag #Top50.
Ready? Here we go!