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You don't understand well the principle of the rating, and didn't read any article of David. I just used the image to quickly explain the concept. You don't even know what is the mathematical core of ELO rating. So why should I spend 1h to explain to the hater :)

No. This is the chart I show to explain the concept. I use my own code on my own Distribution curve to calculate the percentage. Read my article. I fit the curve and adjust the parameters, not the curve of RC.

And if you look at the points of Ovtcharov and Fang Bo. Ovtcharov on the new ITTF ranking has 16000 points, Fang Bo has only 9000 points. Ovtcharov has almost 2 times higher points than Fang Bo. So apply on US table tennis rating for example, with the same ratio, for example, give Ovtcharov has...

Here you are. This is the probability of upset function . the difference is about only 250 points. With the difference about 400 points, the Upset chance is almost zero. For Ma Long, has only 13000 points, and Ovtcharov has 16000 points. You can apply on the Distribution curve yourself, and...

For someone who doesn't know the most accurate rating system story of Rating Centrals. fatt skip David Marcus (AUTHOR OF RATING CENTRALS)

Hi Carl, I don't play on the egos, anger, and the fears of the fans! When I first saw the ITTF ranking of Jan 2018, I've said "It's so ridiculous!". And started to find myself the reason! ZoomTT also finds that the new system has the flaws. And I found that the real World Ranking is the...

In many rating system like ATP, FIFA, there are the tournament coefficient. Read more about ELO and Tennis system here: It's called Point Distribution.

The code is rather long. The algorithm is based on the Probability of winning and Logistic Distribution. After reading Central Ratings, and another ELO system, I have the first version. This version will be updated. Here is the code example of the "LUCKY and SCORE factors". Behind this, there...

Yes, thank you! I will update it every month. :) I will change the flag.

The current ITTF rating system is no longer a real ladder which reflects the player's skill. For example, for the 01/2018, Ovtcharov has 16000 points, Ma Long has only 13000 points, and Fang Bo only 9000 points. Based on the Distribution laws, Ma Long has only about 15-20% probability to win...

It's calculated by the 2017 results. If Ma Long just played only one tournaments in 2018, he will be ranked 1 again.

The new ITTF World Ranking has many flaws. If someone wants to consider the real best players, he can consider this more accurate World Table Tennis Ranking.

The new ITTF World Ranking has many flaws. If someone wants to consider the real best players, he can consider this more accurate World Table Tennis Ranking.

ITTF Table Tennis Ratings is no longer the real "World Ranking". It's now considered as a ladder for the most recent active players. It doesn't reflect the true skills level of the top players. And using the current ITTF World Ranking is dangerous. Therefore, I decided to make my own rating...

You are not alone. The only way to deal with it is "find someone to play" :)

When I watched back this video in 2010, I've seen that Ma Long forehand technique has improved a lot. Now, Ma Long has much a quicker gesture.

When I watched back this video in 2010, I've seen that Ma Long forehand technique has improved a lot. Now, Ma Long has much a quicker gesture.

Wow! haha! luckily, you got injury Dan, if not, we don't have such a nice forum :)

Wow! haha! luckily, you got injury Dan, if not, we don't have such a nice forum :)

Incredible, Dan! I'm late to the party. But I can't believe that in just only 5 years, TTD has become the most popular Media Channel in the table tennis community. Hat down to your effort, Dan. For the people who don't do the Media Promotion, it's so difficult to attain the traffic in a highly...