 Cornes received high praise for returning to his acclaimed tagging football with top performances on midfield heavyweights Brent Harvey (North Melbourne) and Gary Ablett (Gold Coast).Cornes reached his 250th game in Round 5 of 2013, where Port Adelaide came from 41-points down to win 12.12 (84) to 10.19 (79) at AAMI Stadium against the West Coast Eagles, taking the Power to a 5–0 start to the season.Shortly after, Cornes passed Warren Tredrea's record of 258 games to become the man who has played the most games for Port Adelaide in the AFL, in a match where Port thrashed Greater Western Sydney at Skoda Stadium, 19.11 (125) to 6.14 (50).