It means "organized team activities"
Other Than American...
OTA stands for Organized Team Activities and is the term used for training/team activities during the off-season.
OTA
Emi Ota is 161 cm.
Ota Koval died in 1991.
Ota Kroutil was born in 1921.
Hiroshi Ota was born in 1936.
Ota Zaremba was born in 1957.
Ota Kulhánek was born in 1935.
Ota Šik died in 2004.
Ota Šik was born in 1919.
Ota Bubeníček died in 1962.