In this market SportingIndex predict the overall performance of a team during a match based on a points scoring system.
SportingIndex award points as follows: win = 25 points, draw = 10, try = 15, conversion/penalty/drop goal = 5, missed penalty or drop goal = -5, yellow card/sin bin = -5, red card/sending off = -15.
Here's an illustration. For a Six Nations match between Wales and Italy, SportingIndex might quote the Wales performance as 113-120 points. If you believed the Italians would put up a fight and restrict the Welsh you might bet low on the Wales Performance at 113 for perhaps £5 per point.
The Welsh win 33-23 with their performance make-up resulting in 90 points, calculated as follows: win = 25, 3 tries = 3 x 15 = 45, 4 penalties = 4 x 5 = 20, 3 conversions = 3 x 5 = 15, 2 missed penalties = 2 x -5 = -10, 1 sin bin = -5. Total = 90.
By betting low you would have won 23 times your stake: (113 - 90) x your stake = 23 x £5 = £115. However, if you had gone high at 120 for the same stake, you would have lost 30 times your stake: (90 - 120) x your stake = -30 x £5 = -£150.