Tanya Watson, Ireland's first female Olympic diver, has qualified for the semi-finals in the 10-metre platform.
The teenager has finished in 16th place in the preliminary round with the top 18 divers progressing.
Watson will be back in action in the early hours of tomorrow morning.
Leona Maguire is five shots off the lead after the opening day's play in the women's golf at the Olympics.
She's opened with a level-par round of 71 in Tokyo with Stephanie Meadow one-over into day two.
Sweden's Madelane Sagstrom holds a one stroke advantage over the field in the gold medal position at five-under.
Later this morning, three Irish show-jumpers are in the individual final.
Darragh Kenny qualified in second-place overall and the Offaly man will benefit from being among the last out today.
Bertram Allen and 2012 medallist Cian O'Connor also came through the qualifiers yesterday without incurring a single fault.