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Perform the Skill **very well, at speed, under fatigue and under pressure consistently in competition conditions.** This is what it is all about. The real factor in what makes a champion athlete is their capacity to perform consistently in competition conditions.
The 7 Sports Skills Steps You Must Master in Every Sport Wayne Goldsmith
Gregory Rubendall
**TrueSkill Through Time** ([Dangauthier (2008)](https://www.microsoft.com/en-us/research/publication/trueskill-through-time-revisiting-the-history-of-chess/)): An interesting limitation of vanilla TrueSkill is that skill estimates depend only on past matches. However, suppose a player defeated someone who later became the champion. In retrospect, the estimate of the player who beat the champion should be revised upward. This is the difference between vanilla TrueSkill, performing *filtering,* and TrueSkill Through Time, performing *smoothing*. Smoothing is the better option for retroactively determining the GOAT.
Another element is that vanilla TrueSkill assumptions skills only change with matches. TrueSkill Through Time assumes skills evolve over time. This is more realistic, since it is likely that matches occur outside of the data or skills change due other time related factors, like age.
TrueSkill Part 1: The Algorithm
DJ Rich
Whilst you should pursue excellence in technique and strive to continuously improve an athletes skills, it is ridiculous to try to coach every athlete you coach to achieve the myth of technical perfection.
“Textbook” perfect is just that – perfect for still images in textbooks.
The 7 Sports Skills Steps You Must Master in Every Sport Wayne Goldsmith
Gregory Rubendall
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