Yes he was in tenpai, he pon the east wind and then he discarded the 9, going for a single wait on the green dragon. Not sure what rules the are playing but that would probably give him points for the wind and for a Half Flush.
He was at the end. But he was waiting for a fat choi -.- which was unlikely that late in the game when there are none in the discard. Someone might have 3 of them already concealed. Or 2 but they prob won't bail on them that late since they could just use them as eyes since none of them looked like they had amazing hands. Of course others won't toss either to feed the one that has 2.
do you mabye know one with Riichi rules or Chinesse official?
he was never "tingpai" (he never had a ready hand)
unless this is a different version from what im playing.