David Richerby writes:

To nitpick, it's `Elo', not `ELO'. The system is named after it's
inventer, Arpad Elo. It's not an acronym.

Point taken, although I could pretend I'm used to write surnames
with capital letters as in "ELO, Arpad".

I used 1200 as the initial value for my fantasy league, but since
there is no RD value, rating changes will not slow down over time.

--
Anders Carlsson