The future of the GB Rowing Team is on display at Caversham this week as the national training centre stages Trials for this summer's World Senior and U23 Championships in Rotterdam, the Netherlands.
Places in the British squad for September's FISU World University Championships in Poznan, Poland are also at stake at the two-day event, which is being attended by 123 rowers and nine invited coxes.
Among them are two rowers who already have experience at the senior World Championships, the women's pair of Caragh McMurtry and Becca Chin - the latter won a silver medal with the women's four in 2015.
They went second-fastest in Monday's time trials, which were rescheduled from the morning to late afternoon due to adverse weather conditions.
Just over a second quicker in 7:03.52 were the Tees RC pair of Beth Bryan - a medallist with the eight at the past two World U23 Championships - and Jo Wratten, while Fiona Gammond and Katherine Douglas were close behind in third place. Leading the way for the U23s were Exeter University's Alex Flynn and Oluwaseun Olusanya in sixth place.
Reading University BC's Mathilda Hodgins-Byrne was nine seconds quicker than nearest challenger Emily Carmichael in the women's single scull time-trial.
Hodgkins-Byrne, an U23 rower who finished fourth overall at the Olympic-season Trials, clocked 7:19.39. Melissa Wilson, a medallist at the last two World U23 Championships, was third-fastest, followed by aspiring GB debutants Rebecca Girling and Ruth Siddorn.
Less than a second separated the top four in what looks likely to be a well-contested men's single competition.
Nottingham RC's Jon Stimpson, a B finalist at the Olympic-season Trials, narrowly had the edge in a time of 6:47.54, while second-placed Tom Barras was the fastest U23 rower in 6:48.00 - he was part of the GB quad at last year's World U23s. Rowan Law, Dave Bell and Harry Glenister made up the top five.
The men's pair time trial saw Leander Club's Cameron Buchan and Matt Rossiter - a 2007 World Junior Champion with George Nash in the men's four - lead the way in 6:13.88.
In second were the fastest U23 crew of James Rudkin and Lewis McCue. Both represented Britain at last year's World U23s, McCue winning silver in the men's four.
Completing the top five in the time trial were Timothy Clarke and Thomas Ford, Oliver Hines and Graham Ord, and Michael Glover and Morgan Bolding.
In the lightweight section, Molesey BC's Sam Tuck was fastest in the men's single scull in 6:47.95. Just behind him were three members of last year's U23 four that won bronze in Plovdiv, Bulgaria - Jonathan Jackson, Edward Fisher and Ben Reeves. John Hale was fifth.
Mary Wilson of Wallingford RC set the pace in the lightweight women's single, a time of 7:31.88 putting her just ahead of Fran Rawlins - she won the B final at last month's Olympic-season Trials.
Third fastest was Susannah Duncan, a women's quad silver-medallist at last year's World Junior Championships in Rio, while just two-tenths of a second separated Maddie Arlett and Robyn Hart-Winks in fourth and fifth.
Due to the time trials being delayed, the semi-finals have now been rescheduled for 9.37am on Tuesday and the finals for 2.30pm. Any further changes to the racing schedule will be disclosed on Twitter via @gbrowingteam.