The game was settled as a contest, but Hughes remained determined to get her goal; when Hopcroft stole the ball high and Blanchard prodded it over the top, Hughes once again headed it over the goalkeeper. With substitute Abbie Larkin looking to usher it over the line, somehow Lafayette stole in for Watford to hack clear beneath her own bar.
Even then, Palace kept attacking – Lucy Watson in particular provided plenty of impetus off the bench with a number of driving runs from deep, including one which perhaps ought to have resulted in a penalty; Percival had one late half-volley fly over the bar; and Hopcroft’s late corner almost went straight in, but for Howard.
At the other end, a clipped ball forwards gave former Palace forward Bianca Baptiste – on as a late substitute for Watford – the chance to head goalwards, but she directed her effort wide.
And as the action drew to a close at a sun-soaked Palace, with a record crowd roaring them on and three points secured in some style, nothing could put a dampener on a landmark day for Crystal Palace Women.
Four games left, a point off the summit and with a game in hand – it could still turn out to be a landmark season.
Palace: Lambourne (GK), Percival, Everett, Nolan, Gibbons (Reilly, 76), Potter (Arthur, 84), Hopcroft, Blanchard (Filbey, 84), Atkinson (Larkin, 68), Hughes, Sharpe (Watson, 76)
Subs: Negri (GK), Johnson, Guyatt, Dennis
Watford: Howard (GK), León (Fyfe, 62), Meiwald, Lafayette, Bennett (Chandler, 78), Georgiou, Fleming (Rossiter, 45), McLean, Wilson, Harbert (Baptiste, 72), Johns
Subs: Harris (GK), Head, Palisch, Davison