Both have secured three contests, with Victoria leading the event with 19 matches to Western Australia's fifteen and a half.
They have a half point lead over Queensland followed by New South Wales with 12 and a half matches, South Australia with 12, and Tasmania rounding out the event with 10 matches.
The new format for the Interstate Series with single match play encounters has produced interesting results between some of our marque players.
Victoria's Nathan Holman, playing in the number 1 order, has reinforced why he's one of our hottest amateur prospects easily disposing Daniel Nisbet 5&4 during the fourth round to add to his list of impressive wins over Ryan McCarthy, 2&1, and Brad Moules, 7&6.
Australia's top ranked amateur, Matt Stieger sits on 2-1-1 record including impressive wins over Ryan McCarthy, 3&2, and South Australia's Anthony Murdaca, 1-up.
Queensland's number 2, Tim Hart, remains undefeated having squared two matches and won two, including a 2&1 win over Brett Drewitt and a 2&1 win over Victoria's Todd Sinnott. Hart, ranked 79th in the world, certainly has been to date one of the standout performers during this Series.
Bray Watt, the 2011 Lake Macquarie Amateur champion, is also undefeated playing number 4 for Western Australia with a 3-1-0 record including wins over Rory Bourke, 3&2, and Taylor MacDonald, 6&4, and Mark Schulze, 2&1.
Apart from Nathan Holman's 5&4 drubbing of Daniel Nisbet in yesterday's fourth round, which built on Holman's 7&6 disposal of Brad Moules in their morning match, there have been other outcomes of matches which catch your eye.
Jake Higgingbottom playing number 3 for New South Wales was too strong for South Australia's Chris Austin, securing a 6&5 win, Cameron Smith playing number 3 for Queensland easily accounted for Brody Ninyette 4&2 and Tasmania's Cory Crawford won 6&4 over Victoria's Todd Sinnott.
Yesterday in an upset the Tasmanian team defeated the strong New South Wales lineup 4&3 with Cory Crawford winning his match 4&2 over Brett Drewitt, Mark Schulze defeated Jake Higginbottom, 3&2, and John Cassidy winning 1-up over Lincoln Tighe.
Queensland are the defending champions, yet Victoria and Western Australia are positioned to battle for the Series title depending upon how the fifth round of single matches fall.
In recent years the Interstate Series have involved teams from each State contesting foursomes and singles match play with this year's event being the first time where the final will be contested between the two teams who qualify with the most contest wins after five rounds of singles match play.
The final will then consist of four foursome matches this afternoon and seven single matches on Friday to determine the Interstate Series winner.
The new format could result in Queensland slipping into this afternoon's foursome final as they are only a half match behind Western Australia and will meet South Australia in the fifth round.
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