Harden has made the conference finals a couple of times, and has consistently been in the playoff picture his entire career.
The closest Harden ever got to a championship was during the 2012 Finals with the Oklahoma City Thunder struggling to stop LeBron James and Chris Bosh from getting their first rings.
Although the Thunder also had a young Russell Westbrook and Kevin Durant, it was not enough to stop the LeBron James who had recently lost against the Dallas Mavericks in the previous NBA Finals.