Dina Asher-Smith insists there is more to come after she was denied a home victory at the Anniversary Games.
The triple European champion clocked 10.92 seconds to come second in the 100 metres behind Shelly-Ann Fraser-Pryce in the Diamond League race at the Olympic Stadium on Sunday.
She is counting down to the World Championships in Doha, which start in September, and made an early statement with a 10.91secs season's best in her heat.
In the final the 23-year-old finished ahead of third-placed Marie-Josee Ta Lou after Jamaica's double Olympic 100m champion Fraser-Pryce dominated the race, winning in 10.78.
But Asher-Smith is confident she has more in her locker as she targets glory in Doha when the championships start in 10 weeks.
She said: "I haven't peaked yet and we're still in heavy training. I'm really happy, I was looking for a 10.8 but you can't be too fussy when you do two good performances back-to-back.
"I came here wanting to win my home Diamond League and wanting to run a 10.8 but to have placed highly in that kind of field – which could have been a world or Olympic final – I'm really proud of myself.
What a 100m final 😲😲😲 After bringing the Jamaican Select team home in the relay yesterday @realshellyannfp secured her 2⃣nd win of the weekend with a blistering time of 10.78 ! Just 0.01 off her seasons best, @dinaashersmith finishes off a great day for the brits in 2nd! pic.twitter.com/xDW01aZ6Cb — Müller Anniversary Games (@London_DL) July 21, 2019
"It's going to be a really good World Championships, it's going to be entertaining to watch and it's going to be a very good competition among the sprint women.
"Everyone is at different stages of their season, some people have had their trials, I have my trials to come and some don't have trials at all. It bodes well for then but in terms of what it dictates for the World Championships we never know.
"It's always unknown until we get there and finish the race."
Double world 200m champion Dafne Schippers was also disqualified for a false start in the 100m.
Asha Philip missed out on the final after running 11.37, a season's best, in heat one with Daryll Neita also failing to qualify.
Earlier, the men's 4x100m relay squad of CJ Ujah, Zharnel Hughes, Richard Kilty and Nethaneel Mitchell-Blake set a world-leading time of 37.60 to finish ahead of Japan and Holland.
Hughes, who came second in the 100m on Saturday, said: "The team is so versatile and we are all fast at the moment, there is still a lot of us missing which allows us to challenge and push each other to our own limits.
"We're still not sure what we are capable of but it bodes well for the World Championships."
In the Diamond League long jump, which was won by Germany's Malaika Mihambo, Katarina Johnson-Thompson finished seventh with 6.47 metres as Lorraine Ugen came fifth after jumping 6.62m.
Mitchell-Blake was fifth in the men's 200m with GB team-mate Miguel Francis claiming an impressive second place in 19.97.
Meghan Beesley, who won bronze at the European Championships last summer, came sixth in the women's 400m hurdles.
Andy Pozzi was sixth in the 110m hurdles in 13.52 and Lynsey Sharp ran one minute 58.61 seconds to win the 800m with GB team-mate Alexandra Bell third.
