25A0; below par
their performances have been below par : SUBSTANDARD, inferior, not up to scratch, under par, below average, second-rate, mediocre, poor, undistinguished; informal not up to snuff; N. Amer. informal bush-league.
I'm feeling below par : SLIGHTLY UNWELL, not (very) well, not oneself, out of sorts; ill, unwell, poorly, washed out, run down, peaky; Brit. off (colour); informal under the weather, not up to snuff, lousy, rough; Brit. informal ropy, grotty; Austral./NZ informal crook; dated queer.
25A0; on a par with AS GOOD AS, comparable with, in the same class/league as, equivalent to, equal to, on a level with, of the same standard as.
25A0; par for the course NORMAL, typical, standard, usual, what one would expect.
25A0; up to par GOOD ENOUGH, up to the mark, satisfactory, acceptable, adequate, up to scratch; informal up to snuff.