There is an only mildly hacky way you can do this.
If you have Excel (or maybe a freebie equivalent), you could enter the info into a spreadsheet, on your computer. Or, of course, let somebody else do the work of entering results each week. Most people who are marginally computer literate can handle entering data into Excel.
Then you EXPORT the Excel data as a "CSV" file (Comma Separated Variables), which is an ordinary text file. Upload that to the site, and then your JS code could, indeed, read that text file and parse it, in order to show results in a web-bish way.
A CSV file will come out looking something like this:
And that *can* be parsed by JS coding.
... etc. ...
But it would be even easier if you are able to specify that the DELIMITERS used are *NOT* commas and that quote marks are NOT put around each value.
Instead, ask that the delimiters be TABs. And then parsing the text file in JS is nearly trivial.