Flucs or Fluctuations – are designed to represent changes in price to a runner based on the market. When a runner is backed, its price will shorten (that is, decrease). If it doesn't attract support, its price will often drift out (increase).

Whilst significant betting activity can occur immediately after prices are put up, the majority of bets will mostly be placed much closer to the starting time of a race.  Flucs are aimed to show what sort of support each runner has had and are a good representation of their popularity among punters.

Each fluctuation will be represented by a colour to display whether the price has drifted, remained the same or shortened. Below is a breakdown of how fluctuations are shown on site, as represented by different colours.

• Grey = The price has not changed since opening.
• Green = The runner has not been backed by punters and the price has drifted since the market opened. 
• Red = The runner has been backed by punters and the price is now shorter than the price at which it opened.  This is also known as a 'market mover'.