But the 27-year-old from Birkenhead has moved on from Portrush to Paris and went into Friday's second round of the Alstom French Open in a share of eighth place.
It has been a stunning comeback by the former England amateur champion, whose career had to be put on hold when a wrist injury suffered at Wentworth led to surgery and nerve problems.
"It was great to be in the thick of it last week, but also draining, and it's nice to carry on playing nicely here," said Waring.
On three under par he was only three behind Swede Christian Nilsson, whose 65 came midway through a season in which he has yet to record a top-35 finish.
He led by a stroke from Italian teenager Matteo Manassero and two players who had very different experiences at the Wales Open just over a month ago.
While Thailand's Thongchai Jaidee won the title at Celtic Manor - his first victory outside Asia - England's Gary Boyd quit after an opening 88 that included two 10s.
World number three Lee Westwood was five behind Nilsson overnight, but that was far better than seemed likely when he stood four over par after a mere six holes.
Open champion Darren Clarke also shot 70, Justin Rose had a level par 71 and both Graeme McDowell and Ian Poulter were one further back, but Paul Casey's troubled season continued with an 80.
Casey has made only one halfway cut since dislocating his shoulder snowboarding in Colorado on Christmas Eve and that looks certain to continue to next week's Scottish Open at Castle Stuart.