How to create a static index

[Jmnardes]

Im having trouble with a index column, i kinda trying to do a ranking table, this table is sorted by a grade. I have a index in my data, but it's random, not sorted, so when i sort, the index goes crazy, i want my index to stay like 1, 2, 3... And sort the players by the grade. Can someone help me?

{ Header: "P", accessor: "id", width: "8%", filterable: false, Cell: (row) => { return <div>{row.index}</div>; } },
i tryed this, but didn't work.

it goes that way.