Menu | Explaining level changesElliot Nason v Spike McIntosh (Thu 06 Mar 2025)Match won by Elliot Nason. Result: 11-5,12-10,12-10.Starting level for Elliot Nason: 746, level confidence: 14%. Starting level for Spike McIntosh: 334, level confidence: 69%. Elliot Nason to win as he is currently playing 123% better than Spike McIntosh. Elliot Nason won all of the games and 58% of the points. This games result would be expected if he was better by around 55% or more. This points result would be expected if he was better by around 40% (PAR scoring). These are weighted and combined to calculate that Elliot Nason played 45% better than Spike McIntosh in this match. Due to the difference between the players' levels, allow for the likelihood that Elliot Nason was taking it easy by anything up to 15%. This gives him an allowed level range for this match between 491 and 746 without affecting his level. As Elliot Nason has played below his allowed range at 488, his level reduction is 0.8% before damping. On the assumption that Elliot Nason would normally have been playing at level 631 (based on typical behaviour), Spike McIntosh played better than expected and therefore gains a pre-damping level increase of 14%. Allowing for the difference in level between the players, including some additional protection for the better player, the adjustments have been reduced to 0.4% and 9.3% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Elliot Nason changes to -0.4% and Spike McIntosh changes to +1.8%. After applying standard match damping, the adjustment for Elliot Nason becomes -0.4% and for Spike McIntosh becomes +1.8%. Apply match/event weighting of 50% for 'Fair Oak Boxes' so the adjustment for Elliot Nason is 0% and for Spike McIntosh is +0.9%. Increase level confidence due to one more match played. Elliot Nason: 37%, Spike McIntosh: 83%. Reduce level confidence based on how unexpected the result is. Elliot Nason: 30%, Spike McIntosh: 67%. A final adjustment of -0.1% has been made to both players as part of the automatic calibration that is performed after each match. All players in this pool will have been adjusted equally in order to remain equivalent to other player pools. Final level for Elliot Nason: 743, level confidence: 30%. Final level for Spike McIntosh: 337, level confidence: 67%. Notes
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