Cam Norrie’s excellent season continued on Friday night when he scored his second top 20 win inside two weeks.
The British No 2 made the third round of the Miami Open when he defeated world number 16 Grigor Dimitrov 7-5 7-5 in just over two hours.
He will now meet American Taylor Fritz, the number 22 seed, after handling the heat and humidity much better than his talented Bulgarian opponent.
Cam Norrie produced a stunning upset to defeat Grigor Dimitrov in the second round
Norrie is closing in on the world’s top 50 and has now won eleven matches at main tour level in this disrupted season.
‘The first set was such physical tennis and it maybe took it out of him,’ said the 25 year old left hander.
‘I served well and I kind of toughed it out at the end. It’s a massive win for me so I’m really pleased.’
Norrie, who was once a promising cross country runner, is among the most durable athletes on the tour and well suited to attritional matches. It also helps that enjoyed a stellar college career in Texas, so is at home on the US hard courts.
Katie Boulter (above) was beaten by Belgium’s number sixteen seed Elise Mertens
After edging the first set he went an early break up in the second, which was pulled back. He broke again at 5-5 and made no mistake when serving it out.
This was his sixth win overs top twenty player and by ranking the second best of his career. It came after he defeated Italy’s Fabio Fognini last week in Mexico.
Katie Boulter earlier lost her second round 6-4, 6-1 against Belgium’s number sixteen seed Elise Mertens.
Dan Evans was due to play his second round on Friday night against American Frances Tiafoe.