The Dynamic Cue-o of Joshua and Pia Filler will once again look to prove a match made in felt at pool’s US Open this week.The married German professionals, known as the ‘Killer Fillers’, have a relationship with no scratches, so to speak.Dynamic German husband and wife duo of Joshua and Pia Filler have taken pool by stormInstagram / @killerfillersJoshua Filler, who is widely regarded as one of the world’s best cueists, will look to add another major title to their combined collection at the US Open.The 28-year-old was crowned the WPA World Nine-ball Champion in 2018, and won his second world championship with the Eight-ball title two years ago.Filler has also claimed several Mixed Doubles titles on the pro circuit with his wife Pia, who is a fearsome competitor in her own right.How did Joshua and Pia Filler start dating?The couple met at the German national championships when they were 11, but it wasn’t until they each won their respective straight pool divisions in 2011 that they started to find love on the break.Having become part of the same German youth national team soon thereafter, they frequently trained and travelled together.It was then, during one of their weekend practice sessions together, that Joshua Filler took his shot.“He didn’t need words. He just kissed me,” Pia recalled to Billiards Digest magazine.“As I said, I’m shy,” said Filler, laughing. “I don’t need to talk.”The future pool-playing powerhouses dated for a year and were married shortly after Joshua’s MVP performance at the Mosconi Cup. View this post on Instagram The couple now runs a joint account, KillerFillers, on social media to promote both their careers with over 61,000 followers.The pair revealed earlier this year that they now have a prime practice facility on site after moving into a new home.Joshua told the European Pocket Billiard Federation: “We always made sure to have good practice and preparation opportunities, so it hasn’t changed a lot, but having the tables just down the stairs definitely leads to spending even more time at the table as we did anyways.”‘The Killer’ has enjoyed a very successful start to 2026, having triumphed in the Predator Las Vegas Open as well as claiming the Derby City 9-Ball title.Meanwhile, his wife Pia, who is ranked at number two by the World Pool Association and No.4 on the Predator Women’s Euro Tour.She added: “It’s definitely good to see that I’m very stable and successful over the past couple [of] years.The two met at the German national championships when they were 11Instagram / @killerfillers“However, I’m not looking at how proud I am; for me it’s more about constantly working on becoming even better as I’m always hungry for more.”Have Joshua and Pia Filler played each other?As well as being a fearsome double act, the Fillers made history when they faced each other at the 2022 European Open Championship during the winners’ qualification stage.“We just do business as usual,” Pia said ahead of the clash.“It’s no secret he’s the love of my life, but tomorrow he will be my biggest rival for 90 minutes.”Joshua won the match 7–1, but thankfully, there was no cushion needed for this romance, as the pair embraced post-match.