Three-time champion Andy Roddick defeated bullet-serving Ivo Karlovic 7-6, 7-6 on Friday to book a spot in the semi-finals of the Washington Classic. Roddick won the tiebreakers 7-4 and 7-5 to set up an all-American affair with John Isner, who beat Czech Tomas Berdych 6-3, 6-7, 6-2 at the $1.4 million hardcourt event.
The semi-final line-up at the Rome Masters ATP tournament resembles a Davis Cup tie after Spanish and Argentine players claimed all four berths.
Frenchman Fabrice Santoro crushed Novak Djokovic 6-3, 6-2 in the second round of the Paris Masters.
Roger Federer beat Germany's Nicolas Kiefer while Croatian Ivo Karlovic ground down Czech fifth seed Tomas Berdych. The other semi-final will be contested between Jarkko Nieminen and Marcos Baghdatis.
Croat Ivo Karlovic beat Marat Safin 6-3, 6-4 in the first round of the Madrid Masters.
Thomas Johansson saved five match points to upset defending champion James Blake and reach the final of the Stockholm Open.
Andy Murray took another step closer to becoming the first British champion at Queen's Club for more than 70 years when he beat American Mardy Fish 7-5, 6-3 to reach the semi-finals on Friday. Andy Roddick made sure he stayed in the hunt to set up a final date with Murray, scoring a 7-6, 7-6 win over fellow big server Ivo Karlovic of Croatia.
World number one Roger Federer and Andy Roddick also advanced into the third round.
The Indo-Czech duo beat Chris Haggard and Ivo Karlovic 6-7 (3), 6-3, 10-8 in the quarterfinals.
Andy Murray's Rome Masters campaign floundered at the first hurdle when he lost 1-6, 6-3, 7-5 to Argentine qualifier Juan Monaco on Wednesday. Roger Federer, who like Murray had a bye into round two, had a much easier time and eased into the third round with a 6-4, 6-4 win over Ivo Karlovic.
The victory avenged the Croat's quarter-final defeat at the hands of Clement at Queen's last week.
Roger Federer felled big-serving Croat Ivo Karlovic 7-6, 6-3 on Monday to reach the fourth round of the ATP event in Indian Wells. The Swiss world number two, aiming to win the title for the fourth time, snatched the first set on a tiebreak and broke once in the second to clinch victory.
Croatia's Ivo Karlovic posted a 6-4, 6-1 victory over Argentine Mariano Zabaleta in the Houston final.
Ivo Karlovic utilised a single break of service to upset world number 10 Tommy Haas 7-6 6-4 in the quarter-finals of the US Men's Clay Court Championships on Friday.
Ivo Karlovic ousted sixth seeded German Benjamin Becker 7-5 7-6 in the first round of the U.S. Clay Court Championships on Monday.
Top seed Ivan Ljubicic was the only seed to reach the quarter-finals of the Zagreb indoor tournament
Ivo Karlovic has a winning serve but his lack of movement on court proves his undoing.
India's challenge in the doubles at the Chennai Open ended as Vishal Uppal and Ashutosh Singh lost to Tomas Behrend and Robin Vik.
Wimbledon picks up the pace dramatically today with the fourth round of the men's and women's singles.
Roger Federer's reign as world number one could end this week after he was beaten 7-6, 4-6, 7-6 by Croatian Ivo Karlovic in the third round of the Cincinnati Masters.
Croatian beanpole Ivo Karlovic upset top-seeded compatriot Ivan Ljubicic to reach the quarter-finals of the grasscourt Nottingham Open on Wednesday.
Champion Paradorn Srichaphan of Thailand eased into the second round of the Nottingham Open with a 6-3, 6-2 victory over British qualifier Mark Hilton on Tuesday.
Lleyton Hewitt breezed into the last four of the Tennis Channel Open with a 6-2, 6-0 win over Philip Kohlschrieber
Agassi remains top of the 12-month rankings with 4,090 points followed by Ferrero and Federer.
The third seeds went down to the unseeded Croatian pair of Ivo Karlovic and Lovro Zovko at the Swiss Indoors tournament.
Mardy Fish beat Ivo Karlovic 7-6, 6-4 to reach the final of the ATP event in New Haven.
The American won his third successive Stella Artois title with a tight 7-6, 7-6 victory over Croatian Ivo Karlovi.
Wimbledon will herald a new men's champion and for the four players left in the draw, the moment has been a long time coming.
Andy Murray battled back to beat unseeded Ivo Karlovic 6-7, 6-4, 7-6 to defend the San Jose Open title.
Defending champions Andy Murray will play Ivo Karlovic in the final of the San Jose Open.
In the other semi-final at the San Jose Open, German sixth seed Benjamin Becker, who upset Marat Safin will take on Ivo Karlovic.
Glynn Hewitt says his son had been unfairly criticised after his first-round loss at Wimbledon to Croatian Ivo Karlovic.
German sixth seed Benjamin Becker beat Marat Safin to set up a semi-final meeting with Ivo Karlovic, who had earlier dispatched fifth seeded American Mary Fish at the San Jose Open.
The American was beaten by world number 103 Ivo Karlovic of Croatia in the second round.
World number 103 Ivo Karlovic of Croatia beat James Blake 6-7, 7-6, 6-4 in the second round.
The duo beat James Blake and Jeff Morrison of the U.S. in the first round of the ATP International tennis championship in Florida.
The defending champion easily won his fourth round match against Croatian Ivo Karlovic at Wimbledon.
Croatia's Ivo Karlovic became the oldest ATP winner since Jimmy Connors in 1989.