Here’s my estimate of the IQ of the smartest person in various races, based on the average IQ and population size. All IQs are on a scale where British and American whites have a mean of 100 (standard deviation = 15). Because of lack of precise data, I assumed a normal distribution and a standard deviation of 15 for all races, though these assumptions are surely wrong in some cases:

group average iq estimated average genetic iq population size assumed standard deviation highest iq highest genetic iq u.s. ashkenazi jews 110 110 5.5 million 15 186 186 indian americans 110 110 3.1 million 15 185 185 east asians 105 105 1,576 million 15 196 196 israeli ashkenazi jews 103 103 2.8 million 15 177 177 non-hispanic non-jewish whites 99 99 975.7 million 15 189 189 southeast asians 87 96 618 million 15 176 185 pacific islanders 85 94 34 million 15 166 175 arctic people 91 91 0.1 million 15 155 155 non-white caucasoids in their home countries 84 90 2,075 million 15 176 182 native americans 86 89 60 million 15 169 172 african americans 85 85 42 million 15 167 167 congoids in africa 67 80 936 million 15 157 170 australoids 62 73 2.6 million 15 136 147 capoids/pygmies 54 67 0.5 million 15 123 136