This is information from the official press release for the new 2014 NASCAR Chase Rules
Eligibility for the Chase for the NASCAR Sprint Cup
The top 15 drivers with the most wins over the first 26 races will earn a spot in the NASCAR Chase Grid – provided they have finished in the top 30 in points and attempted to qualify for every race (except in rare instances). The 16th Chase position will go to the points leader after race No. 26, if he/she does not have a victory. In the event that there are 16 or more different winners over 26 races, the only winless driver who can earn a Chase Grid spot would be the points leader after 26 races.
If there are fewer than 16 different winners in the first 26 races, the remaining Chase Grid positions will go to those winless drivers highest in points. If there are 16 or more winners in the first 26 races, the ties will first be broken by number of wins, followed by NASCAR Sprint Cup Series driver points.
As was implemented in 2011, prior to the start of the Chase, all Chase Grid drivers will have their points adjusted to 2,000, with three additional bonus points added to their total for each win in the first 26 races.
Chase for the NASCAR Sprint Cup Structure
After the third Chase race, the Chase Grid will be left with 12 drivers. After the sixth Chase race, the field will drop to eight drivers, and following the ninth Chase race, only four drivers will remain in championship contention for the NASCAR Sprint Cup title.
The first round (races 27-29) will be called the Challenger Round. If a driver in the Chase Grid wins a Challenger Round race, the driver automatically advances to the next round. The remaining available positions 1-12 that have not been filled based upon wins will be based on points. Each will then have their points reset to 3,000.
The second round (races 30-32) will be called the Contender Round. Likewise, if a driver in the top 12 in points wins a race in the Contender Round, the driver automatically advances to the next round. The remaining available positions 1-8 that have not been filled based upon wins will be based on points. Each will then have their points reset to 4,000.
The third round (races 33-35) will be called the Eliminator Round. If a driver in the top eight in points wins a race in the Eliminator Round, the driver automatically advances to the next round. The remaining available positions 1-4 that have not been filled based upon wins will be based on points. Each will then have their points reset to 5,000.
Additionally, drivers who are eliminated in the Contender and Eliminator Rounds will have their points readjusted. Each eliminated driver will return to the Chase-start base of 2,000 (plus any regular season wins bonus points), with their accumulated points starting with race No. 27 added. This will allow all drivers not in contention for the NASCAR Sprint Cup title to continue to race for the best possible season-long standing, with final positions fifth-through-16th still up for grabs.
Four Drivers, First-to-the-Finish Championship Finale
The 36th and final race of the season will be the NASCAR Sprint Cup Championship. Simply stated, the highest finisher in that race among the remaining four eligible drivers will win the NASCAR Sprint Cup Series title.
Bonus points for laps led will not apply in the season finale, so the official finishing position alone will decide the champion.
Note: All rules outlined above also apply to the NASCAR Sprint Cup Series owner championship structure.