Russell, the reigning GNCC National Champion, enters the fifth round with a slim points lead and an impressive three-race winning streak behind him. However, while Russell appears to have an advantage over his teammate early on, Mullins is still within striking distance to reclaim the points lead with a victory at Sunday’s Dunlop Limestone 100.

Mullins and Russell are the only riders to capture an overall victory at the Limestone 100, as Mullins won in 2013 and Russell claimed the inaugural victory in 2012. This Sunday, both KTM riders will attempt to become the first repeat winner at the third running of the Limestone 100.

The potential spoiler could very well be Rocky Mountain ATV*MC/N-Fab AmPro Yamaha’s Josh Strang, who currently sits third in the championship standings. Strang’s consistency has paid off as far as the point standings are concerned, but the 2010 GNCC Champion is still searching for a spot in the center of the podium.

N-Fab AmPro Yamaha’s Jordan Ashburn has put forth a consistent string of finishes through the first four rounds, where he sits fourth in the standings. With one podium finish behind him already, Ashburn is looking to make a return to the box on Sunday. N-Fab AmPro Yamaha’s Paul Whibley sits in fifth overall with three solid finishes behind him, but a mechanical issue at Round 3 gives the two-time GNCC Champion a big deficit from the leaders early on.

In his first full season back from injury, Factory FMF/KTM’s Stu Baylor Jr. sits in sixth overall, while Factory Husqvarna’s Andrew Delong sits in eighth and RideMPS.com/AMSOIL/Honda’s Thad DuVall sits back in eleventh after two scoreless finishes due to mechanical issues.

The ultra-competitive XC2 Pro Lites championship chase ensues this weekend with a tight-knit battle between the top three contenders. After a big win at the last round, reigning XC2 Pro Lites Champion Grant Baylor now holds a three-point lead over Raines Riding University/Atlas Cycles’ Ricky Russell in the standings, but XC2 rookie Trevor Bollinger sits only three points behind Russell in third.

With two wins under his belt, Baylor is the only multi-time winner in the class thus far, which could give the young gun the edge he needs to gun for a second consecutive title. However, Russell has been consistently up front all season and the Washington native is looking for his first win of the season this weekend.

In his first year of XC2 Pro Lites competition, Bollinger has already made a big statement by capturing the Round 3 victory and securing two podium finishes in the first four rounds.

Factory FMF/KTM’s Kacy Martinez tops the WXC class after four rounds, followed closely by N-Fab AmPro Yamaha’s Becca Sheets and her teammate Jessica Patterson. Last round, Patterson put an end to Kacy’s three-race winning streak with a big victory in South Carolina.