Pikes Peak Christian School participates in annual, national standardized testing using the Stanford Achievement Test Series, Tenth edition, published by Harcourt Educational Measurement, a Harcourt Assessment Company. PPCS also administers the Otis-Lennon School Ability Test, also published by Harcourt, in conjunction with the Stanfords.

PPCS's scores compared nationally to other schools for the past several years on the Stanford achievement tests are as follows: