Teammate Rubens Barrichello finished second in last week's battle in Spain, which allowed him to pad his advantage over the remainder of the field. Barrichello was mildly upset that he was not allowed the opportunity to win after team strategy was altered mid-race that favored Button.
Meanwhile, the NASCAR boys continue to run strong and take up most of the remaining top-10 spots. Tony Stewart's third-place finish at Darlington was enough to keep him third on the Unified Power Rankings grid, while Jeff Gordon's fifth-place finish allowed him to leapfrog Kurt Busch into fourth.
The Indy Racing League has not yet run five races this season, which is the minimum required for inclusion to this list, so none of their drivers will be included until after the Indy 500.
Three drivers, Mark Webber, Mark Martin and Fernando Alonso jumped nine positions between last week and this week to become the biggest gainers.
Justin Allgaier's impressive fifth-place finish in the Nationwide Darlington race allowed him to leap onto the grid in 45th, which Nick Heidfeld scored a seventh in the Spanish Grand Prix to sneak into 50th.
Unified Power Rankings
|Rank||Driver||Competition Points||Last week||+/-|
|11||Ron Hornaday Jr||80.80||9||-2|
|26||Dale Earnhardt Jr||71.80||21||-5|
|34||Johnny Benson Jr||67.00||37||3|
|38||Martin Truex Jr||64.73||45||7|
|42||Scott Lagasse Jr||63.70||38||-4|
|49||A J Allmendinger||60.82||50||1|
The Unified Power Rankings are based on "percentage points." Starting with a 100 score for the winner of a Nationwide race, each subsequent position is decremented by a percentage that relates to the number of drivers in the field. In a 50-car field of potential qualifiers, the second-place driver receives 98 points, third-place gets 96 points, the 43rd-place driver gets 16 points (because he beat eight other driver to even get into the field) and so on until the last non-qualifier in 50th-place gets two points.
Only races run in the last three months count in this formula.
The Cup, IRL and Formula 1 series start at 110 points for a victory (since its so difficult to win one of these races) and then decrements 1/50th of 110 points for each subsequent position. It’s an unscientific way to determine who is the best in their series, while simultaneously trying to compare apples to oranges.
Previous Unified Power Rankings: