Thunderstorms over the Shunyi Olympic rowing venue forced the postponement of today's programme, which means the Irish lightweight four has to wait until tomorrow to compete in the semi-finals.
Also behind schedule are the sailors with both Finn (Tim Goodbody) and Laser Radial (Ciara Peelo) classes abandoned due to lack of wind.
Meanwhile today was a scheduled rest day for Gerald Owens & Phil Lawton in the 470 class. Lying 11th overall, and chasing a top ten place to ensure they can compete in the Final Medal Race, their races resume tomorrow.
Tomorrow (Friday) will also see the start of the Star class, where Peter O'Leary & Stephen Milne - the last of Ireland's sailors - will begin their campaign. .