Menu | Explaining level changesSteve Harris v Richard Church (Tue 17 Jun 2025)Match won by Richard Church. Result: 1-3.Starting level for Steve Harris: 813, level confidence: 63%. Starting level for Richard Church: 1,699, level confidence: 54%. Richard Church to win as he is currently playing 109% better than Steve Harris. Richard Church won 75% of the games. There are no points scores. This games result would be expected if he was better by around 25%. This result only has game scores. Less accurate but we can still work with it. Due to the difference between the players' levels, allow for the likelihood that Richard Church was taking it easy by anything up to 14%. This gives him an allowed level range for this match between 1,180 and 1,699 without affecting his level. As Richard Church has played below his allowed range at 1,095, his level reduction is 7.8% before damping. On the assumption that Richard Church would normally have been playing at level 1,469 (based on typical behaviour), Steve Harris played better than expected and therefore gains a pre-damping level increase of 20%. Allowing for the difference in level between the players, including some additional protection for the better player, the adjustments have been reduced to 4.4% and 14% respectively. Without points scores, the adjustment has been reduced to 10.7%. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Richard Church changes to -3.5% and Steve Harris changes to +9.2%. After applying standard match damping, the adjustment for Richard Church becomes -2.7% and for Steve Harris becomes +6%. Apply match/event weighting of 50% for 'Exeter Golf & Country Club Boxes' so the adjustment for Richard Church is -1.3% and for Steve Harris is +3%. Increase level confidence due to one more match played. Richard Church: 73%, Steve Harris: 79%. Reduce level confidence based on how unexpected the result is. Richard Church: 57%, Steve Harris: 61%. A final adjustment of -0.2% 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 Steve Harris: 836, level confidence: 61%. Final level for Richard Church: 1,674, level confidence: 57%. Notes
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