Their 'Player Performance' market is very much like their Team Performance market, only it is based on how an individual player performs in any given match.
The scoring system is: Goal scored = 25 points (note the goal scorer as awarded by the TV coverage), goal assist = 10 (note this is the final touch before a goal is scored - if it hits an opposition player or woodwork first, no assist is given), shot on target = 5, forcing a corner = 3, free kick won = 3 (note includes penalties), passing to own player in opposition half = 2, free kick conceded = -3, yellow card = -10, red card = -25.
SportingIndex normally offer Player Performances on three or four players from each team.
Their Player Performance quote for Robbie Keane before kick-off of a particular game might be 40-45 points. If you believed he is an over-rated player likely to be outplayed by his marker, you might place your spread bet low at 40 for £2. A drab performance from Keane might result in a Player Performance make-up of just 17 points. Had you gone low on Keane's performance at 40 you would have won 23 times your stake: (40 - 17) x your stake = 23 x £2 = £46. If, however, his attacking style had led you to bet high on his performance at 45, you would have lost 28 times your stake: (17 - 45) x your stake = -28 x £2 = -£56.