While I admit this match up may be fairly 50/50, considering Beerus's 2M which, if unexpected, could lead to hefty damage combos, I would like to suggest that a well read Beerus can be easily beaten by Goku Black, so a 6/4 Goku Black win rate is more appropriate (in my opinion). With Beerus being a heavily offensive character, a well read 2M or superdash can be easily countered into a hefty combo by Black. Forgive me if this seems very under evidenced, i'm open to discussion.
While I admit this match up may be fairly 50/50, considering Beerus's 2M which, if unexpected, could lead to hefty damage combos, I would like to suggest that a well read Beerus can be easily beaten by Goku Black, so a 6/4 Goku Black win rate is more appropriate (in my opinion). With Beerus being a heavily offensive character, a well read 2M or superdash can be easily countered into a hefty combo by Black. Forgive me if this seems very under evidenced, i'm open to discussion.