Freshmen placed into the second or third quarter of the first year calculus sequence at the University of Washington were studied. Two major findings were: freshmen eligible for advanced placement earned mean mathematics Grade Point Averages (GPAs) which were quite high; and advanced placement students earned mean mathematics GPAs substantially higher than the corresponding "average" total group in all mathematics courses. The most superior performance in terms of mean mathematics GPA were those students eligible for advanced placement in the third course in the sequence. Data proved sparse for certain College Entrance Examination Board (CEEB) score subgroups, but information about the Autumn Quarter 1977-79 freshmen calculus students is provided. (MP)