Doug Polk had to work for his money on Wednesday. He also had to withstand a furious rally by Daniel Negreanu. But after all was said and done, he ended one of the longest sessions of the challenge with yet another six-figure win.

Doug Polk battled for five hours to book a six-figure profit. (Image: YouTube)

Negreanu was coming off two straight winning sessions in which he profited over $260,000 total. He was looking to continue his winning ways, but couldn’t shrug off an early massive deficit.

Polk entered Day 21 of the $200/$400 heads-up no-limit hold’em competition on WSOP.com with a $696,000 lead. The long-time feuding poker pros had completed 11,318 hands of a 25,000-hand challenge. On Thursday, they nearly hit the midway point, and Negreanu is now down by a margin that will be difficult, but not impossible, to come back from.