Alan and Victoria invent Multisport

Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!

After Alan distilled to Victoria what was interesting about sport (expertise, athleticism and the element of surprise) they created Multisport. In the game, Victoria tried to score against Alan but could surprise him at the start of each round, whilst Alan was trying to get the ball over a badminton net behind Victoria with a cricket bat. They received 5 points each.

(Written by Taskmaster Wiki contributors)