Roller Ball

Rollerballs (also known as Take the Reins) is a recurring endurance challenge that originated in.

Rules
The castaways must stand on a small log while balancing a ball on a wooden disc. At regular intervals, one more ball will be added onto the plate until there are three balls, which will increase difficulty. If at any time a ball falls off the disc or a castaway loses their footing on the log, they will be eliminated. The last castaway standing wins.

History
The challenge was first introduced in as the first individual Immunity Challenge for the new Murlonio tribe. Natalie Tenerelli won the challenge, outlasting Mike Chiesl.

The challenge was re-used two seasons later in, where it was once again used as the first individual Immunity Challenge for the new Tikiano tribe. Troyzan Robertson won the challenge, outlasting Kat Edorsson.

In the rules of the challenge were changed. The contestants had to balance a ball on a disk, and balance the disk on two ropes. At regular intervals, moved their hands farther back on the rope making it more difficult to balance. After 25 minutes, a second ball was added. Keith Nale outlasted his son, Wes Nale, to win the first individual Immunity Challenge of the season.

In, it came down to Keith Nale and Joe Anglim. Joe ended up winning.

Trivia

 * Every time the challenge was used, 12 castaways competed.
 * Natalie Tenerelli is the only female to have won this challenge.
 * Jeremy Collins and Keith Nale are the only contestants to have competed in this challenge twice.
 * Keith has won once and lost once while Jeremy has lost both times.