Alex de Minaur, the world No. 9, is electrifying the 2025 Mutua Madrid Open, storming into the fourth round with a 6-4, 6-2 demolition of Denis Shapovalov on April 26. At the heart of his relentless performance is fiancée Katie Boulter, the British No. 1, whose unwavering support from the stands has ignited De Minaur’s clay-court surge. Their love story, a blend of fierce devotion and playful chemistry, is stealing the spotlight at the Caja Mágica as the Australian star dominates with Boulter as his biggest cheerleader.
De Minaur showcased his trademark speed and precision against Shapovalov, breaking the Canadian’s serve three times and firing a jaw-dropping backhand winner that left the crowd—and Boulter—roaring in approval. A viral Tennis Channel clip captured Boulter’s beaming grin as she applauded the shot, with the caption, “Katie’s loving Alex’s magic!” The Aussie won 89% of his first-serve points and committed just nine unforced errors, sealing the match in a brisk 88 minutes.
Boulter, who exited the Madrid Open in the second round after a 6-3, 6-4 loss to Jasmine Paolini, has remained in Madrid to rally behind De Minaur. Her presence is a constant for the couple, who got engaged in December 2024 after meeting over coffee in 2020. “Katie’s my rock,” De Minaur said in a post-match interview. “Having her here, cheering me on, it pushes me to play my best.” Their bond was on full display when Boulter playfully crashed De Minaur’s Sky Sports interview earlier in the tournament, shouting, “You’re killing it!” to his delight.
The couple’s dynamic resonates with fans, blending on-court intensity with off-court charm. Boulter, who notched her first WTA clay-court win in Madrid against Katerina Siniakova, credits De Minaur’s Alicante training base for her own clay-court growth. “We push each other to be better,” she told Eurosport. De Minaur, meanwhile, is building on his 2024 breakthroughs—quarterfinals at Monte Carlo, Roland Garros, and Wimbledon—with a potential Madrid quarterfinal against Daniil Medvedev or Arthur Fils looming.
As De Minaur carves his path through the draw, Boulter’s infectious energy is proving to be his secret weapon. “Alex makes me feel unstoppable,” Boulter shared on Instagram, posting a photo of them laughing together courtside. With their wedding on the horizon and Roland Garros approaching, this tennis power couple is showing that love can be the ultimate game-changer.