How many teams have sucessfully done a triple balance?

[Borobo]

for semi finals at denver, we played against 3 wide orientation robots, 1157 and 2 others whose numbers I don't remember. on the second match of the semifinals, they beat us with a triple balance (their second of the regional). for the third match we parked perpendicular to their bridge and just sat there for the last minute while they pushed against us. It seems to be really easy to defend against if our experience at Denver is anything to go by