Hubert Hurkacz earned a critical win for his country on Sunday evening at the United Cup, where he defeated Alexander Bublik 7-6(8), 4-6, 6-3 to give Poland a 2-1 lead against Kazakhstan. Magda Linette then finished the job and Hurkacz/Iga Swiatek capped a 4-1 victory for their countrey.

World No. 48 Linette secured the winning point for Poland, easing past Kazakhstan’s Zhibek Kulambayeva 6-2, 6-1 in Brisbane.

“Following Hubi was great,” Linette said. “Watching that match from them was nerve-wracking. But it was really nice coming with the advantage of knowing he won. It was great and I just did my job.”

Hurkacz’s match appeared destined for a final-set tie-break between two of the biggest servers on the ATP Tour, but Hurkacz was opportunistic at the most critical moment. On his third break point at 4-3, the Pole hit a well-placed return deep in the court to put Bublik on the back foot, then rushed forward and executed a perfect half volley to elicit an easy putaway.

If Hurkacz had any nerves as he stepped to the line to serve for the victory, he did not show them. The Pole held to love, crushing his 18th ace of the match to triumph after two hours and nine minutes.

“It was a lot of fun to play against Sascha. I think that the quality was really high. It was the first match of the new year on the first [day of the year], so that was pretty good. I’m really happy with the quality and it was definitely a fun match,” Hurkacz said. “It was a lot of fun to play in front of such a great crowd. I’ve never been in Brisbane and I really love it here so thanks guys for coming.” 

Hurkacz now leads Bublik 4-1 in their ATP Head2Head series, and has won four consecutive matches against the Kazakhstani. Bublik hit 15 aces and saved three of the four break points he faced, but it was his final service game that proved his undoing. 

Linette was clinical in her first match of the season, showing her quality and experience against Kulambayeva, who has become a fan favorite in Brisbane. The 441st-ranked 22-year-old had no answers for Linette’s baseline consistency. Linette fired 18 groundstroke winners in the match while limiting Kulambayeva to just five.

With the tie already in hand, Hurkacz and Swiatek showed their quality in the mixed doubles, defeating Kulambayeva and Grigoriy Lomakin 6-3, 6-4.

Lomakin threw in multiple underarm serves successfully, but it was not enough for the Kazakhstanis. WTA World No. 1 Swiatek hit an around-the-netpost winner and Poland will next face Switzerland to decide the winner of Group B.

Petra Martic notched a 6-2, 4-6, 6-1 defeat of Nadia Podoroska on Sunday to give Croatia an unassailable 3-0 lead over Argentina at the United Cup in Perth. The winner of Group F will be decided over the next two days in the third and final tie, as Croatia return to take on France.

In Martic’s only previous encounter with Podoroska, she had emerged a 3-6, 6-1, 6-2 winner in the third round of Rome 2021. Once again, she was able to triumph in three sets, losing the tightest but running away with the other two.

This time, Podoroska roared out of the blocks. The former WTA No.36 dazzled in the opening three games, breaking Martic straight away with a perfect lob and coming up with crowd-pleasing volley and dropshot winners.

But Martic responded with aggression of her own, and Podoroska proved unable to sustain her high level. The Croatian reeled off seven straight games, breaking for 4-2 as Podoroska served consecutive double faults and sealing the set with an exquisitely weighted drop shot of her own.

Both players settled into a groove on serve in the second set: the first eight games saw just one break point between them, quickly snuffed out by Podoroska with a service winner. At 4-4, though, Martic blinked first. A dip in energy and execution saw her quickly lose the last two games of the set with a series of cheap errors, then go down a break at the start of the second set.

Encouraged by captain Iva Majoli and coach Michael Geserer, Martic gathered herself to reprise the arc of the first set. Having backed off her aggressive tactics, she upped the ante on serve and resumed her net-rushing approach in the decider, and was rewarded with another six-game streak to seal victory.

Paula Badosa engineered a remarkable comeback to defeat Harriet Dart 6-7(6), 7-6(5), 6-1 to earn Spain’s first match-win at the United Cup. Playing her first match of the season, Badosa fought off leg cramps to reel in Dart and keep Spain in the tie on Sunday in Sydney.

Great Britain now leads Spain 2-1. The task now falls to Daniel Evans to try and clinch the win and seal a spot at the top of the Group D table. Evans will face Albert Ramos Vinolas in the second men’s singles match.

“I don’t know what happened at the second set, I started a little bit to cramp,” Badosa said. “It was high intensity, first match of the year, I was nervous. But I could adapt myself. I started to play a little bit more aggressive. I’m very happy with the fight tonight because I played and fought until the last moment.”

Badosa went into the match looking for her first win over Dart. The 98th-ranked Brit handed Badosa her last loss of the 2022 season at the Billie Jean King Cup, winning 6-3, 6-4 in November. As luck would have it, Badosa drew Dart again for her first match of the 2023 season. After Great Britain swept Spain on Day 3 to build a 2-0 lead, Badosa was faced with the added pressure of winning a must-win match for Spain.

Dart came through a 77-minute opening set to hold off a furious comeback from the Spaniard, saving two set points along the way. With Badosa struggling with her rhythm on serve, Dart opened up a 5-2 lead before the former World No. 2 dialed in. Badosa ran off four consecutive games and earned two set points on Dart’s serve at 6-5, but a brave cross-court forehand from Dart kept her in the set.

But the grueling first set and humid conditions took its toll on Badosa in the second set. After building a 3-1 lead, she began to cramp in her legs. Dart took advantage, clawing her way back on serve before Badosa began to rebound physically.

With the help of some pickle juice provided by the trainer, Badosa began to recover and her serving woes dissipated. Badosa powered through the second-set tiebreak, building a 5-0 lead and holding off a comeback from Dart to seal set with a roar.

With the momentum firmly on her side, Badosa dominated the final set, saving her best tennis for last. Badosa hit just three unforced errors in the final set, playing at the level that won her the Sydney title on this very court, to race away with the win after 3 hours and four minutes of play.

Elise Mertens kicked off 2023 by giving Belgium a 2-1 lead over Bulgaria at the United Cup in Perth, though her 6-4, 3-6, 6-0 win over substitute Gergana Topalova wasn’t all smooth sailing.

No.323-ranked Topalova was a last-minute replacement for Bulgaria’s top WTA player, Viktoriya Tomova, who sustained a left calf injury in her Day 2 loss to Maria Sakkari. The 22-year-old was making her tour-level debut; indeed, she had never even played a WTA qualifying draw before, nor had she faced an opponent ranked higher than No.130.

However, Topalova had improved her year-end ranking from No.512 to No.308 over the course of 2022, and demonstrated why in an impressive performance against Mertens. She nailed a backhand winner on the second point of the match, and that shot would prove an impressive weapon across the one-hour, 55-minute contest.

Nonetheless, WTA Finals doubles champion Mertens’ experience and all-court prowess kept her in front. The Belgian won 16 out of 22 points at net, and racked up 22 winners in total. However, her service level fluctuated somewhat; Mertens accumulated eight double faults, repeatedly beckoning Topalova back into the match.

But No.29-ranked Mertens was able to withstand her opponent’s comeback attempts each time. She was twice up a break in the first set, but after being pegged back to 4-4 found her best returns and serves to take the last two games. And after Topalova came from 2-0 down in the second set to level the match, Mertens responded with a dominant third set in which she only conceded three points on serve.

Belgium are now one win from victory with two rubbers to go. ATP No.129 Zizou Bergs has the opportunity to seal the tie against Bulgaria’s Dimitar Kuzmanov in the next match on RAC Arena, but the potential for the first mixed doubles deciding rubber remains alive.

Norway began Sunday in a deep hole against Brazil trailing 0-2 in their United Cup tie, but World No. 3 Casper Ruud kept his country’s hopes alive.

In the first men’s singles match of the new year, Ruud defeated Brazilian Thiago Monteiro 6-3, 6-2 to narrow the deficit to 1-2 in the tie. Ulrikke Eikeri will try to level the tie in the No. 2 women’s singles match when she faces Laura Pigossi. Norway must sweep Sunday’s three matches to complete the comeback.

“It was a must-win, so I was maybe feeling the pressure a little bit, but I was able to come out with a good start and starting the new year in tennis down in Australia feels great. It’s always exciting to be here. My first time in Brisbane, so it’s been a great few days so far. I’m really enjoying the city and thanks to everyone who came out first day of the year to watch some tennis.”

Ruud picked up where he left off in a standout 2022 season, during which he climbed as high as No. 2 in the Pepperstone ATP Rankings and advanced to the championship match of the Nitto ATP Finals. Despite a slight hiccup when he fell behind 0-2 in the second set, the Norwegian stormed through the final six games of the match to triumph after 72 minutes.

“I always feel very motivated coming down here playing in Australia. Last year was a bit unfortunate. I was not able to play in the Australian Open. I rolled my ankle the day before my first round, so I’m very eager to hopefully have a good start of the season down here and this is a perfect way for me to start another year on Tour.”

Monteiro’s forehand was his undoing in the early going, as a slew of unforced errors allowed Ruud to find his comfort zone inside Pat Rafter Arena.

Although Ruud pushed a forehand long to fall behind a break in the second set, he never panicked, nor did he appear in trouble. The 24-year-old converted five of his six break point chances to take a 3-0 ATP Head2Head lead against Monteiro. He has not lost a set in any of those matches.

World No. 16 Petra Kvitova came through once again for Team Czech Republic, defeating Laura Siegemund 6-4, 6-2 for her second win at the United Cup on Sunday. The victory gave the Czech Republic an insurmountable 3-0 lead over Team Germany, sealing the tie for the Czechs in Sydney.

Kvitova has come through two physical wins this week in Sydney. Her opening victory over World No. 3 Jessica Pegula, a tight 7-6(6), 6-4 win, was a big confidence boost for the former World No. 2, who saved seven set points in the first set to win in two.

That same resilience was on display against Siegemund. The scoreline betrays how tough the German made Kvitova work for the win. Siegemund generated 11 break points in the match – two more than Kvitova – but the Czech came through in the clutch. Despite 10 double faults on the day, Kvitova saved nine of 11 break points, while breaking Siegemund four times.

Germany’s Oscar Otte then earned his nation its first win at the event when he downed Dalibor Svrcina 7-6(1), 6-2 in the No. 2 men’s singles match of the Group C tie. Svrcina replaced Czech’s No. 2 men’s player, Tomas Machac, who injured his ankle in his opening match against Frances Tiafoe.

Otte, who rallied from a double break down in the first set, is currently No. 76 in the Pepperstone ATP Rankings having reached a career-high No. 36 in June. A mixed doubles match will round off the Group C tie between Czech Republic and Germany in Sydney.

The United Cup is a new mixed-teams event featuring 18 countries across Brisbane, Perth and Sydney. Played over two days, ties will be comprised of two ATP and two WTA singles matches and one mixed-doubles match.