Christine Ohuruogu is primed and ready for another crack at a world title - but there was disappointment for British long jump hope Shara Proctor in Moscow.
Ohuruogu, the world champion in Osaka six years ago, progressed through her 400m semi-final in emphatic style, clocking a season's best 49.75 seconds, just 0.14 secs off her personal best.
And the 2008 Olympic champion and London 2012 silver medallist couldn't have been happier, according to coach Lloyd Cowan.
"We absolutely can't take anything for granted tomorrow," he said.
"There are six girls inside 50 seconds and most of them are going to be even closer to the line in the final."
Reigning champion Amantle Montsho, who beat Ohuruogu beat in Birmingham earlier this year, was the most impressive qualifier but her British rival was second quickest - and there is no doubting she is a proven major championship performer.
“I'm just really happy to be in the final. I wanted to make sure I finished well at the end," she said.
However, there was disappointment for top medal hope Proctor, who finished sixth in her final.
She had qualified in first place and a repeat of that 6.85m leap would have been good enough for bronze when it mattered.
However, she blamed a calf injury for her performance, with a leap of 6.79m the best she could muster.
“I didn’t deliver, I was feeling good until the first jump but my calf started to cramp up," she said.
"I didn’t come all this way to give up so I kept pushing.
"As an athlete you have to have a short term memory, qualifying was in the past and I forgot about it and came here with a new mind-set to win a medal but it just didn’t happen.”
James Dasaolu reached the 100m final - won as expected by favourite Usain Bolt - after dipping below ten seconds for only the second time in his semi-final.
But he followed up on that 9.97 secs time by finishing eighth in the final in 10.21 secs - though insisted he had no complaints after the injury troubles of the past month.
“I got to 50 or 60 metres but then they just started to run away from me," he said.
"I think the semi-final took it out of me but I made it through three rounds and I’m happy that I’m injury free and I can continue with the rest of the season.
“I didn’t have all the training behind me so it certainly took a lot out of me and my body didn’t have enough to give come the final. But I gave it my best and just ran out of energy for the last 20 or 30 metres.”
Dasaolu will now refocus his sights on the 4x100m relay later this week, alongside Dwain Chambers and Harry Aikines-Aryeetey, who finished sixth and seventh respectively in their semi-finals with times of 10.15 and 10.34.
Andrew Osagie progressed to the 800m final but there was disappointment for Michael Rimmer who failed to progress through his semi-final, despite declaring himself in top shape.
“I knew a top two qualification would be tough for me as I'm just finding my way but I kept an eye on what was going on," said Osagie, an Olympic finalist last summer.
"I knew it was a decent pace so I even dipped for the line which I think saved me a couple of hundredths and it's got me in the final.”
Elsewhere, Alex Wright finished 31st in a 20km race walk, staged in brutally hot conditions.
“I’m really happy with that. I was overtaking people all the way through to the end so I can’t complain. I felt really strong towards the end," he said, after clocking one hour 26.40 minutes.
© Sportsbeat 2013