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Tsz Fung Yip v Abdulla Al-Tamimi (Fri 03 May 2019)

Match won by Tsz Fung Yip. Result: 11-8,11-5,11-3.

Starting level for Tsz Fung Yip: 38,855, level confidence: 75%. Set manually.
Starting level for Abdulla Al-Tamimi: 33,759, level confidence: 60%.
Tsz Fung Yip to win as he is currently playing 15% better than Abdulla Al-Tamimi.

Tsz Fung Yip won all of the games and 67% 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 106% (PAR scoring).
These are weighted and combined to calculate that Tsz Fung Yip played 106% better than Abdulla Al-Tamimi in this match.

Assuming that any level changes are shared between both players, for this result it looks like Tsz Fung Yip actually played at a level of 52,013 and Abdulla Al-Tamimi at a level of 25,219. Without any damping, both players would need to be adjusted by 34% to match this result.


Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Tsz Fung Yip changes to +25% and Abdulla Al-Tamimi changes to -31%.

After applying standard match damping, the adjustment for Tsz Fung Yip becomes +5% and for Abdulla Al-Tamimi becomes -6.2%.

Apply match/event weighting of 100% for 'Senior Asian Championship' so the adjustment is unchanged.

Apply limits to the amount of change for a single match which are based on player level, level confidence and time since last match so that Abdulla Al-Tamimi is limited to -5% level change. In general a player's level won't go up by more than 10% or drop more than 5% if they've played in the last 7 days but those limits are relaxed if their previous match was further back.

Increase level confidence due to one more match played. Tsz Fung Yip: 86%, Abdulla Al-Tamimi: 78%. Reduce level confidence based on how unexpected the result is. Tsz Fung Yip: 65%, Abdulla Al-Tamimi: 58%.

A final adjustment of -0.3% 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 Tsz Fung Yip: 40,533, level confidence: 65%.
Final level for Abdulla Al-Tamimi: 32,163, level confidence: 58%.