Logan Sargeant was satisfied that he could unlock his potential during qualifying for the Las Vegas Grand Prix.
The Williams driver progressed to Q3 for the second time this season, having previously managed to achieve the feat at Zandvoort earlier in the season.
Having initially qualified in seventh, Sargeant will also gain a spot due to an engine-related penalty for Carlos Sainz meaning he will start from sixth.
"I feel like it's just so nice to see the hard work coming together," he told Sky Sports.
"We've had this potential for a while but haven't really delivered on it.
"We did so in three separate qualifying sessions and we have a quick car."
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Sargeant: We have an annoying race car for the others
Williams has historically shown impressive straight-line speed at high speed circuits.
Sargeant believes Williams will be able to attack the other cars around him, as its sets it sights on extending the lead over AlphaTauri for seventh in the Constructors' Championship, with the Italian team currently seven behind on 21 points.
"We have a good race car, we're going to have an annoying car for the others down the straights," said Sargeant.
"We're gonna try to attack, but we also have a good way to defend."