According to NorthAmericanWrestlingRankings.blogspot.com, which started keeping track of wrestlers’ records and ranking them as of Nov. 2006, when Dolph Ziggler lost to Seth Rollins back on the 10/17/14 episode of Smackdown it was the Show Off’s 300th televised singles match, making him only the second wrestler [behind Randy Orton] to have wrestled that many televised singles matches! [As of 12/31/14 Ziggler has had 320 matches, Orton 339]. Kofi Kingston is knocking on the door to this milestone with 299 singles matches as of 12/31/14.
[NOTE: these records count t.v. and ppv singles matches since Nov. 2006 ONLY].