ITF, PTR, USPTA, excluding other reasons, the pass rate of ITF is at least 50%. At the same time, ITF is certified by internet society of china, and can evaluate professional titles in the system. After USPTA was introduced into China, it was greatly discounted and its level was uneven. PTR looks fake. I really think this is about making money. The passing rate is 99%, and you can pass after paying the training fee.

Uspta feels that the harvest is also great, and it is all about dry goods. If your students are at a high level, it is recommended to take part in this.