Operation Balance Build

Operation Balance Build is a recurring challenge of . It debuted in , and has since reappeared in , , and .
==Rules==
The castaways have to attach a small wooden bowl to a prong at the end of a long pole to maneuver it through a metal structure that sits on a spring. Once they have the piece through the structure, they have to sit it at the top of their stack. The first castaway to stack all their bowls on top each other, or have the most bowls stacked by the end of a specified time limit win.
==History==
=== United States ===
In , the challenge was used as the Final Immunity Challenge, where Kim Spradlin beat Chelsea Meissner, Christina Cha, and Sabrina Thompson to win immunity.
In , the challenge was the first duel, between Candice Cody, Marissa Peterson, and Rupert Boneham. Candice and Rupert were close to finishing the duel when Rupert's stack toppled over. Candice cruised to finishing first, while Rupert was unable to recover, allowing Marissa to continue on.
In , the challenge was once again used as the Final Immunity Challenge. After thirty minutes had elapsed, both Hannah Shapiro and Ken McNickle had ten bowls stacked. After a five-minute showdown, Ken managed to get seven bowls to Hannah's six, giving him the final immunity and a seat at the Final Tribal Council.
The challenge reappeared as the Final Immunity Challenge in . Mike Gabler lost his early lead when a gust of wind knocked over his tower, leaving Cassidy Clark and Owen Knight to compete for the win. With two bowls to go, Owen's tower tipped over, opening the window for Cassidy to complete her stack of fifteen bowls to win a seat at Final Tribal Council.
=== Australia ===
=== South Africa ===
The challenge was played for immunity at the final five of , where the Araw tribe was challenged to stack ten bowls on their structures. The challenge came down to a race between Tom Swartz and Werner Joubert to stack their last bowl; at the last moment, Werner's stack fell, giving Tom his second win.
==Winners==
<tabber>United States=
Episode	Challenge Type 	Winners 	Winners
 	Individual Immunity(Final Immunity)	colspan="2"	
 	Duel 	 	
 	Individual Immunity(Final Immunity)	colspan="2"	
 	Individual Immunity(Final Immunity)	colspan="2"	
|-|Australia=
Episode 	Challenge Type 	Winners
Episode 23	Individual Immunity	
Episode 20	Duel 	
Episode 9 	Tribal Immunity 	
|-|South Africa=
Episode 	Challenge Type 	Winners
Episode 14	Individual Immunity	
</tabber>
==Gallery==
<tabber>United States=
f4ic.jpg|The final four compete in .
Kim-game-face-on.jpg|Kim competing in One World.
Survivor One World Finale Final 4 Immunity Challenge Christina Cha.png|Christina competes in One World.
survivor.s27e01.hdtv.x264-2hd 1896.jpg|Candice at the challenge in .
survivor.s27e01.hdtv.x264-2hd 1897.jpg|Marissa competes in Blood vs. Water.
Adam operation balance build.jpg|Adam competes in .
|-|Australia=
S3Ep23 Immunity6 900x506.jpg|Shonee competes for immunity in .
S3Ep23 Brian Stack.jpg|Brian competing in 2018.
AU4EP20.jpg|Simon and Daisy compete to return to the game in .
</tabber>
==Trivia==
* Even though three castaways have been in two seasons where this challenge occurred, none of them have ever competed in this challenge.
* Ken McNickle is the only man to win this challenge.
==References==
Category:Survivor (U.S.)
Category:Australian Survivor
Category:Challenges
Category:Recurring Challenges
Category:Survivor: One World
Category:One World Challenges
Category:Survivor: Blood vs. Water
Category:Blood vs. Water Challenges
Category:Survivor: Millennials vs. Gen X
Category:Millennials vs. Gen X Challenges
Category:Survivor 43
Category:Survivor 43 Challenges
Category:Australian Survivor: Champions v Contenders (2018)
Category:Champions v Contenders (2018) Challenges
Category:Australian Survivor: Champions v Contenders (2019)
Category:Champions v Contenders (2019) Challenges
Category:Australian Survivor: Blood v Water
Category:Blood v Water Challenges (Australia)
Category:Survivor South Africa: Philippines
Category:Philippines Challenges (South Africa)