Wilson took advantage of some horrible defending by Hammers fullback Aaron Cresswell to score twice in the opening 28 minutes. But when Mark Noble penalty and Cheikhou Kouyate both scored to draw West Ham level early in the second period you expected the Hammers to go on and take all three points.
But substitute Marc Pugh restored Bournemouth’s lead and Wilson completed his hat-trick from the spot after Carl Jenkinson had been sent off, before Modibo Maiga hit back for West Ham.
Manchester United’s winning start to the Premier League season ended on Saturday as they were held to a frustrating 0-0 draw by Newcastle United at Old Trafford. United dominated the early stages and Wayne Rooney saw a goal ruled out for offside (bad call), but Newcastle went close when Aleksandar Mitrovic headed against the bar.
Louis van Gaal’s side laid siege to the Newcastle goal in the second half, Tim Krul saving from substitute Javier Hernandez and Chris Smalling heading against the post, but Newcastle debutant Florian Thauvin was inches away from toeing in a late winner at the other end.
United’s draw allowed Leicester City to move top of the table on goal difference after a 1-1 draw at home to Tottenham.
Delle Ali headed in a cross from Nacer Chadli to give Spurs an 81st-minute lead at the King Power Stadium, but within a minute Riyad Mahrez had cut in from the right and curled home his fourth goal of the season to level.
Elsewhere, debutant Bakary Sako struck in the 87th minute to give Crystal Palace a 2-1 win at home to Villa, who had been in line for a point after a Pape Souare own goal cancelled out Scott Dann’s header.
Bottom club Sunderland stopped the rot after two straight defeats by drawing 1-1 at home to Swansea City, with Jermain Defoe equalising for the hosts after Bafetimbi Gomis had scored his third goal of the campaign.
Record signing Xherdan Shaqiri created an early goal for Mame Biram Diouf on his Stoke City debut, but his side had to settle for a 1-1 draw at Norwich City due to Russell Martin’s 28th-minute equaliser.