#2. Most number of matches on SmackDown

SmackDown has been on the air for around 20 years. The blue brand has been more of a wrestling-oriented show - a contrast to RAW which always has been a story driven show. It may or may not be a shock that the Big Show has had the most number of matches on Smackdown - with a giant total of 313.
However, a recently returned superstar is just below the world's largest athlete in this list. Rey Mysterio has competed in 290 matches for the blue brand.
Breaking Vince Russo and Jim Cornette update HERE.
There is every chance that The Master of the 619 will overtake Big Show in the coming months, given the fact that he is a regular competitor on the show and The Big Show is not. It is just a matter of time before Mysterio, quite deservingly, snatches the record away from Big Show.