In 2004–05 the 73's and Sharks would once again meet up this time in the League Semi-finals which many saw as a battle of the 2 best teams, it would be a classic series, the teams would play Game 7 at the Essex arena in front of over 1500 fans, Sharks held a 2-0 3rd period lead before the 73's battled back with 3 late goals to claim the series victory, Essex would go on to win the Provincial Championship.

During the 2011–12 regular season the Sharks would set a team record with 12 straight wins at the Wheatley Arena and finish with a 16–3–1 home record, it was also a successful season for Kurtis Ouellette who won Defenceman of the year and Riley Babkirk who won Rookie of the year.

The regular season success would not continue over to the playoffs though, the Sharks would fall in the 1st round to the Belle River Canadiens in 5 games.

Round 2 would bring their rivals from Belle River, the Canadiens held a 3–2 series lead heading back to Wheatley, the Sharks would force a game 7 with a 4–1 win on home ice, Game 7 would be dominated by the Sharks 4–0 and send Wheatley into the finals against the 73's.

After losing their leading scorer Jon Woelk to a broken ankle in the previous round, and a few key components the 73's would eliminate the Sharks 4 straight to put an end to Wheatley's hopes for a first League Championship.