单曲 APT:

$$\operatorname{PF}(D,A)= \begin{cases} 0, & D<1 \\ D\cdot \left(\frac{A}{100}\right)^{1.50}\cdot B_D(D)\cdot B_A(A), & D\ge 1 \end{cases}$$ $$B_D(D)= \begin{cases} 1, & D<8 \\ 1+0.05(D-8), & 8\le D<10 \\ 1.10+0.08(D-10), & D\ge 10 \end{cases}$$ $$B_A(A)= \begin{cases} 1, & A<98 \\ 1+0.03(A-98), & 98\le A\le 100 \end{cases}$$ $$B20=\frac{1}{N}\sum_{i=1}^{N}PF_i^\downarrow,\quad N=\min(20,\text{bestCount})$$ $$R10=\frac{\sum_{k=1}^{M}w_k\cdot PF_k}{\sum_{k=1}^{M}w_k},\quad w_k=M-k+1,\quad M=\min(10,\text{recentCount})$$ $$\text{FinalRating}=0.85\cdot B20 + 0.15\cdot R10$$