Career
At the 2007 World Weightlifting Championships he ranked 37th in the 85 kg category, with a total of 281 kg. He ranked 4th in the 85 kg category at the 2008 Oceania Weightlifting Championships, with a total of 292 kg. Katoatau represented Kiribati in weightlifting at the 2008 Summer Olympics in Beijing, China, and also was the national flag bearer at the opening ceremony.
In the Olympic tournament he ranked 15th in the 85 kg category, with a total of 313 kg.
In 2012, he was the first I-Kiribati ever to qualify on merit for the Olympic Games (rather than receive a wildcard invitation), in any sport. As part of Kiribati"s delegation at the 2012 Summer Olympics in London, he competed in the men"s 94 kg event, and finished 17th out of 21, with a total lift of 325 kg.
He was, again, his country"s national flag bearer during the Games" opening ceremony.