Champions Tennis Series

The PowerShares Series, formerly know as the Champions Series, consists of tournaments played in select markets where tennis legends compete in a highly competitive, fan friendly, round-robin format with a champion crowned on the last day of each event. The first 3 rounds of each tournament are played in round robin format with the eight champions drawn into two groups of four and each player playing against the other 3 players in his group. The top players from each group advance to a Sunday championship match, while the second place finishers in each group play in Sunday’s 3rd place playoff match.
Matches are played in the best of three set format, with the 3rd set consisting of a champions tie-break. The champions tie-break is defined as the 1st player to reach 10 points with a margin of 2 points.
Eligible players competing on the PowerShares Series have either held a top 5 singles ranking, been a Grand Slam singles finalist or a singles player on a Championship Davis Cup team during their ATP Tour playing careers. PowerShares Series tournaments are allowed one wildcard player of their choice. All players must be a minimum of 30 years of age. This criteria assures fans that there will be a legend competing in every match of every session of every event.
The PowerShares Series include the following events:
- Battle of the Champions
- Champions Challenge
- Champions Classic
- Champions Cup Anaheim
- Champions Cup Boston
- Champions Shootout Atlanta
- Champions Shootout Philadelphia
- Champions Showdown
- CTCA Championships
- Nasdaq Indexes Cup
- PowerShares Challenge
List of 2011 Champions Series rankings:
| RANK | PLAYER | COUNTRY | POINTS | TOURNAMENTS |
| 1 | Pete Sampras | USA | 2200 | 7 |
| 2 | Jim Courier | USA | 1600 | 12 |
| 3 | Andre Agassi | USA | 1500 | 7 |
| 4 | Michael Chang | USA | 1100 | 7 |
| 5 | John McEnroe | USA | 900 | 6 |
| 5 | Todd Martin | USA | 900 | 4 |
| 7 | Jimmy Connors | USA | 200 | 2 |
| 8 | Ivan Lendl | CZE | 100 | 1 |
| 8 | Mats Wilander | SWE | 100 | 1 |
| 10 | Bjorn Borg | SWE | 0 | 0 |