Becky Lyne became the United Kingdom's third-fastest female 800m runner of all time at the Norwich Union British Grand Prix in Gateshead on Sunday.
Lyne is now the third fastest British woman over 800m of all time
The 23-year-old finished second behind Kenyan Commonwealth champion Janeth Jeptosgei in a new personal best of one minute 58.20 seconds.
"I'm in shock," said Lyne, who came home ahead of world-class duo Seltana Ait Hammou and Mina Ait Hammou.
"I've been trying so long to break two minutes but didn't expect it so soon."
British 400m hurdler Tasha Danvers-Smith, who has set her sights on a podium place at the 2008 Olympics, produced a dominant performance to win her event.
The 28-year-old Commonwealth silver medallist moved into the world top 10 with a time of 54.86, despite a stumble on the last hurdle.
World 5,000m and 10,000m champion Tirunesh Dibaba kicked at the bell to race away to a comfortable 3,000m victory in a season's best 8:42.04. Jo Pavey was the first Briton home, taking fifth spot in 8:49.54.
Local Olympic bronze medallist Brendan Foster had held his stadium record in the men's event for 32 years, but Eliud Kipchoge clocked 7:33.54 to eclipse the Briton's mark.
The Kenyan beat compatriot Isaac Songkok into second while Britain's Mo Farah ran an encouraging new personal best of 7:45.25.
Briton Turner (right) cannot catch winner Stanislav over the hurdles
Morocco's Mohammed Moustaoui upset in-form Bernard Lagat, the Olympic silver medallist, in the 1500m to win with a new personal best of 3:34.40.
Britain's Andy Baddeley (3:36.52 ) edged out local favourite Nick McCormick (3:38.04) for third place while Michael East was run out of it as he continues his comeback from injury.
Grenada's Francique Alleyne took the men's 400m in 44.94 as the British trio of Graham Hedman, who set a new personal best of 45.84, Robert Tobin and Andrew Steele filled the last three places.
Welshman Tim Benjamin withdrew from the meeting to focus on training as he continues to recover from injury.
Olympic and world 400m champion Tonique Williams-Darling took the women's title in a season's best of 50.13.
American Sanya Richards set a new stadium record of 22.25 on her way to the 200m top spot, but there was agony for Olympic champion Veronica Campbell as she had to be carried off the track after collapsing with a thigh problem.
England's Commonwealth bronze medallist Andy Turner had to settle for fourth place behind winner Latvian Stanislav Olijar after a wobbly performance in the 110m hurdles.
But Kelly Sotherton continued her form from Melbourne, where she won heptathlon gold, by setting a season's best of 6.67m in the long jump.
Sotherton finished second behind Olympic long jump champion Tatyana Lebedeva, who leapt to 6.95m. There was disappointment for Jade Johnson, who could only leap 6.29m.
Brazilian Jadel Gregorio claimed the men's event with 8.05m, ahead of British duo Nathan Morgan and Chris Tomlinson (both 8.00m).
American Christian Cantwell set a UK all-comer's record in the shot put as he landed 22.45m with his last attempt. Blackpool's Carl Myerscough threw a season's best of 20.36 - only good enough for fifth.