Question:  Austin Abayomi Koledoye, is a Nigerian professional basketball coach, he's coached Cambodia's national basketball team, which he led to its best performance ever at which 2015 event that occured in Kallang, Singapore?
Sentence (from "Fictor Gideon Roring"): In 2015, he returned as coach of the Indonesia national team, taking home silver from the 2015 SEA Games in Singapore.
Relevant evidence: No