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 |
|---|---|---|---|
| 8984 | 2019-12-15 09:53:45 | 79.12 | 95% |
| 8742 | 2019-10-15 13:24:49 | 81.22 | 94% |