Sam Allardyce admitted West Ham gifted a goal to their former player, but it was just as welcome all the same to the Hull midfielder.
Mohamed Diame was sold on transfer deadline day to Hull, and repaid their £3 million investment with a strike in the 2-2 draw.
Diame's all round game was impressive, completing 94 per cent of his passes, and winning five tackles.
His pass rate was one he topped only on two occasions last season for West Ham when he played more than 60 minutes, while he only bettered five successful tackles in three Premier League matches in 2013/14.
Diame left the Hammers because he wanted to get back to his best, feeling he was poorly utilised at West Ham.
His early performance showed he was motivated to prove a point and he helped do just that. It was to the Hammers' credit that they came back to claim a point when the momentum had tipped in Hull's favour, and they nearly went onto win the game.
Manager Steve Bruce told Hull's website: "I’m disappointed with the second goal we conceded. If we could have hung on to the lead for ten minutes it might have turned out differently, but that goal was an awful mess. It was a horrible way to end up drawing the game.