How to use the CalculatorA swimmer can calculate his or her power point score instantly by using the IMR, IMX & Power Point calculator. A swimmer selects his event and age, enters his time into the calculator and then clicks on the Calculate button. A swimmer also has the option of looking at and printing the chart of all point values from 2 to 1,100 with corresponding times for the selected event. These tables make it possible to look at specific events and research the point value assigned to various times for that event. Note: All 8-under athletes use the 9 yr old scores.