UK Open Pool 2026 Dark Horses: Six Names Outside the Top Seeds Who Could Spoil a Filler Three-Peat in Brentwood

The 2026 UK Open Pool Championship arrives at The Brentwood Centre from May 26 through May 31, and on paper, the favorites are the names that have dominated the World Nineball Tour all season. Joshua Filler is back to defend his crown, Aloysius Yapp arrives off a 2026 Yalin WPA 8-Ball World Championship win, and Fedor Gorst returns to a stage that has chewed up world number ones before. But the UK Open is also famous for one thing the headline draw can never capture, which is the way an outsider walks in on the right side of a fortunate match-up sheet and rides confidence all the way to a Sunday final at Sky Sports.

This year, the 256-player bracket is even more dangerous than usual. With $225,000 on the line and the entire World Nineball Tour ranking system in play through the new Mosconi Cup qualification window, every match in Brentwood matters. So who beyond the top eight could actually find themselves under the Sky Sports lights on finals weekend? Below are six dark horse names whose 2026 form, equipment, and head-to-head record suggest the favorites should not relax for a single rack.

1. Mickey Krause: The Dane With a 1080 Predator Chalk and Zero Tournament Nerves

Mickey Krause has been the most quietly consistent player in Europe for the last 18 months. He plays the same brand of slow, methodical pool as Niels Feijen but he breaks harder and pots out faster, and at the UK Open last year he ran through a section that included two former winners before losing a hill-hill match in the round of 16. The kid is a pattern grinder. He sees the rack in groups of three and four balls, not one and two, which is the single biggest separator at the top of the men’s tour right now. If Krause draws a comfortable opening match in Brentwood, he is the European most likely to make the second weekend without anyone seeing him coming.

Krause plays a Predator-style low-deflection build with a carbon fiber shaft, and the cues that most closely mirror what he uses on tour are stocked in the Predator Cues lineup at Quarter King. The Predator 9K-3 Pool Cue is the closest production analog to what European pros are running in 2026, with a 12.4mm REVO shaft and a tight phenolic joint that lets you feather the cue ball at half-speed without losing the line.

2. Sanjin Pehlivanovic: The Bosnian Who Reads Banks Like Earl Strickland

If you watched the 2026 European Open in March, you saw Sanjin Pehlivanovic make Eklent Kaci sweat in the first round before bowing out. The story sold by the broadcast was that Kaci escaped, but the larger story was that Pehlivanovic does something most European players still cannot do. He plays banks and kicks like an American one-pocket grinder, and on a TV table at Brentwood that defends nicely, his style is precisely the wrong assignment for the speed-and-pattern crowd at the top of the bracket.

Pehlivanovic is also a heavy user of standard maple shafts, which is unusual at the top of the European tour and which makes his kicking game even sharper. Quarter King keeps a deep bench of traditional builds in the Pool Cues category, including the workhorse Joss and Schon lines that Northeast U.S. road players have leaned on for decades.

3. Pia Filler: The Other Filler, and the One Nobody Wants in Their Half

Pia and Joshua Filler swept the 2026 Predator Luxembourg Open earlier this month, taking both the men’s and women’s titles in front of a home crowd. The headline ran with Joshua, as it usually does, but Pia’s road to the women’s title included two of the toughest first-round wins of any player on either side of the bracket. She is now ranked inside the world top five women, and at the UK Open she is in a 256-player open field where she will play men.

That matters. Pia’s game is built around speed and a tight stop ball, and on a 9-foot Diamond table she does not give up much against a man unless he can simply outrun her on the break. She also plays equipment that Quarter King carries directly, including the Predator Throne3-5 Pool Cue, which is the same line her husband has used to win majors. Drawing Pia in the round of 64 is the single least desirable opening assignment of the entire UK Open draw.

4. Robbie Capito: The Hong Kong Talent Who Beat the Top Seed in Vegas

Robbie Capito is not really a dark horse anymore, but he is still treated like one at every major outside Asia. He took out world number one Fedor Gorst at a 2026 European Open round earlier this spring and has been climbing the Pro Billiard Series rankings ever since. At 23 years old he plays without the European tactical caution that occasionally slows down players like Kaci and He, and at a venue like Brentwood where the pace of play is fast and the breaks come in waves, that aggression is an edge.

Capito favors a stiff carbon shaft and a low-deflection feel, which puts him squarely in the same equipment bracket as the Predator BLAK and Mezz ZZ-series. Both are stocked at Quarter King, including the flagship Predator PREBLK54 BLAK Series Cue and the new Mezz ZZAS33 Pool Cue, which is the closest production cue to the high-rake butt build Capito uses for Saudi 10-Ball.

5. Wojciech Szewczyk: The Polish Veteran Whose Safety Game Travels Anywhere

Wojciech Szewczyk plays a brand of nine-ball that does not really exist in the United States anymore. He looks for safeties the way most modern players look for runouts, and when he plays a long match he wins almost every push-out exchange because his stick handling on the slow stroke is some of the best in Europe. Szewczyk’s 2026 results have been quiet but consistent, with deep runs at the Roobet European Open and the Premier League Pool earlier this year, and at the UK Open he is exactly the kind of opponent a top seed prays to avoid in a one-set match.

Szewczyk runs an old-school maple shaft with a layered tip, which is rare on a modern WNT table. His preferred build is closer to the Joss and Schon traditions than to anything Predator-shaped, and Quarter King keeps several models from that lineage stocked, including the entire classic American Pool Cues category where the Mezz, Schon, and Joss lines live.

6. Sofia Mast: The Newest Name on the WNT Roster

Sofia Mast forced her way onto the World Nineball Tour main bracket through a qualifier in 2026, beating two former pro tour players to get there. She is 19, plays out of Germany, and like Pia Filler she is entering an open field with men on a 9-foot table where her speed control is right there with the top women in the world. Mast is the long shot of long shots in Brentwood, but the same was said about Margarita Fefilova Styer two years ago, and Margarita is now a 2026 WPBA Island US Open champion.

Mast favors a Mezz build with a Sigma shaft. Her exact cue is not yet imported in volume to U.S. retailers, but the closest production analog stocked at Quarter King is the Mezz ZZAS31 Pool Cue at the entry of the ZZ-series tier. It uses the same Sigma shaft technology that Sofia is comfortable with and is the best place for a developing player to step into the brand without paying flagship money.

How These Six Reshape the UK Open Bracket Math

The traditional analysis of a UK Open draw is to look at the top eight, divide them across the four sections, and ask which favorite has the toughest path. That math has been wrong for three straight years. Joshua Filler did not have an easy path last year either, and the year before that the eventual winner was barely on most viewers’ radar before the round of 32.

The reason dark horses convert at the UK Open specifically, rather than at the U.S. Open Pool Championship or the World Pool Masters, is the bracket size. With 256 players in a single-elimination knockout, the cumulative effect of a single mismatch in the round of 128 or 64 is enough to put any top seed into a section where they meet a Krause, a Pehlivanovic, or a Capito before they have hit their stride. That is also why the UK Open has produced more first-time major champions than any other event on the World Nineball Tour.

What to Watch If You Care About Pool, Not Just Pool Stars

The pure pool fan tends to focus on the matches the broadcast already wants to show, which means Filler vs Gorst on a Saturday afternoon and Kaci vs Yapp under the lights. If you want to see the actual development of the modern game in 2026, you watch round of 64 matches involving any of the six players above. Their breaks, their safety exchanges, and their pattern selection are where the next generation of pro pool is being built in real time.

If you want to play the same equipment the next generation of pros is using, the catalog at Quarter King carries both the established names and the new-build cues those players actually choose. The Predator Cues category is the deepest at the high end, with the BLAK, Throne 3, and P3 series all in stock. The Mezz Pool Cues category covers everything from the ZZ-series with Sigma shaft down to the ACE218 entry tier, and the broader Pool Cues category rounds out the traditional builds from Joss, Schon, McDermott, and Pechauer.

Watch Brentwood with an open mind, because pool in 2026 is no longer a game decided entirely by the top eight names on the draw sheet. It is a game decided by who arrives in the round of 16 with their break working, their shaft delivering, and their head right. The six players above all have that capacity. The UK Open will tell us which one of them takes the next step.