The big final rule for the comma is one that you won't find in any books by grammarians. It is quite easy to remember, however. The rule is: don't use commas like a stupid person. I mean it. More than any other mark, the comma requires the writer to use intelligent discretion and to be simply alert to potential ambiguity.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 1845 | 2020-12-26 01:53:29 | 87.78 | 99% |
| 1013 | 2020-10-09 16:36:35 | 75.61 | 97% |