Fran Halsall admits she has been chomping at the bit to get going at the World Swimming Championships and she didn't disappoint as she bettered her own British record in the 50m butterfly heats.
The 23-year-old flew out of the blocks and clocked 25.69seconds to qualify joint-fastest for the semi-finals, British teammate Siobhan-Marie O'Connor failing to make it in 26.98.
And after waiting until day six to swim in Barcelona Halsall claims the swim, which eclipsed her 25.86 effort of two years ago, was a sign of things to come at the Palau Sant Jordi.
"I've been waiting to get going all week and it is just business for me in the morning," said Halsall, who will also go in the 50m freestyle over the weekend.
"From now on you’re going to see me every session, this is day one for me of a three-day meet and I'm in every day so I'm just taking each swim as it comes.
"And a British record to start it isn't a bad effort. It's a nice personal best to start off with so I'm feeling good and I'm in good shape."
Michael Rock also made it past the heats of the 100m butterfly in 52.13 for tenth overall while the British men's 4x200m freestyle relay team followed suit.
James Guy led a quartet Robbie Renwick, Ieuan Lloyd and Josh Walsh to a time of 7:13.00minutes, good enough for seventh place heading into the final.
"It's a personal best for me so I can't complain because that's what I was hoping to do, as well as give the guys the best start I could," said Guy, who clocked 1:48.08 on his leg.
"There was a bit of pressure on me, but it's all experience for someone my age. I think I'm doing OK."
Elsewhere Jazmin Carlin's individual efforts are over in Barcelona after she agonisingly missed out on the 800m freestyle final, finishing ninth in the heats.
She was just seven hundredths of a second adrift of eighth-placed qualifier Chloe Sutton of America while fellow Brit Ellie Faulkner came in 17th.
Elsewhere, Adam Brown and Ben Proud both just missed out on making the semi-finals of the 50m freestyle.
Brown clocked 22.30 to finish 17th while Proud touched home one place further back in 22.31, five hundredths and six hundredths of a second respectively away from progressing.
And Lauren Quigley also fell in the heats of the 200m backstroke after posting a time of 2:14.27, which placed her 25th overall.
© Sportsbeat 2013