It takes a special kind of run-good to crush the UK live circuit for twelve straight months. It takes an even more impressive talent to incinerate the rewards in a single evening.
Thomas Clack, the undisputed boss of the 2025 National Poker League (NPL), just gave the industry a masterclass in how to win the war and lose the peace. After a season that included 36 cashes, two High Roller titles, and a Goliath runner-up finish that essentially printed money, Clack has been stripped of his headline £40,000 Grosvenor sponsorship.
The culprit? A GTO solver left open on his desktop.
The Digital Tripwire
For those of us who track game integrity, the details here are painfully binary. Clack was grinding an online flight of the Grosvenor Behemoth while simultaneously running solver software. The iPoker Network, which powers the Grosvenor client, detected the prohibited software and issued an immediate suspension.
Clack's defense is one that many grinders might privately sympathize with, even if they wouldn't dare replicate it. He claims he wasn't using the software for real-time assistance (RTA) on active hands. Instead, he insists he was reviewing spots immediately after playing them to check his lines.
"It was a really stupid way to study," Clack admitted.
He is right. In 2026, running a solver alongside a poker client is the digital equivalent of walking into a bank vault with a stethoscope "just to test the acoustics." You might have innocent intentions, but security is going to tackle you first and ask questions never.
Intent vs. Algorithm
This incident highlights a growing disconnect between live pros and the automated reality of online security. Clack is a live crusher. In the live arena, intent matters. You can explain to a floor manager why you acted out of turn.
Online, however, intent is irrelevant. Networks like iPoker have moved past human judgment calls to rely on process scanning. If the security protocol detects a solver process communicating with the CPU while the poker client is active, you are flagged. The software does not care if you are checking a previous hand or solving the current river decision. It sees the capacity to cheat, and that is sufficient grounds for a ban.
Clack tried to argue that his play was too suboptimal to be computer-assisted, noting he didn't follow the theory lines. But game integrity teams no longer prosecute based solely on the quality of your play. They prosecute based on the contents of your RAM.
The Irony of the "Victory Lap"
The true sting here is that Clack didn't need the help. He had already locked up the NPL title. He was effectively taking a victory lap when the ban came down. He punted a £40,000 sponsorship package—and the career-defining exposure that comes with it—for the sake of instant gratification on a hand review.
Grosvenor's hands were effectively tied. Their terms require sponsored pros to be eligible to play on the site. You cannot slap a patch on a player who is digitally exiled from your own tables. It is a brand consistency nightmare that no amount of live tournament results can fix.
The Takeaway
Clack will survive this. He is still eligible to play live Grosvenor events, and given his 2025 form, he will likely continue to terrorize fields across the UK. But his expensive mistake serves as a bleak warning to the hybrid player.
Treat your online grind station like a sterile cockpit. Close the browsers. Shut down the discord screenshares. And for the love of the game, keep the solvers off until the tournament clock hits zero. The algorithms are watching, and they do not understand "just checking."
