it depends....Just because you have to count into this equation the probability of win related each odd.
win rate should be every time adapted to the odds you're playing.
it's really different If you are able to guess 50% of odds at @3.00 or odds at @1.50
in the first case probability of win is 33%. In the second one... 66%!
so in the first case you're good tipster (60%vs 50%) in the second one no (60% vs 66%)
you can check this site to have some easy math about that: http://1x2stats.com/en-us/odd-probability-converter/