A method and apparatus for pairing load values and position values is disclosed. An exemplary method includes determining a first position value of a polishing rod of a pump unit via a rod pump controller, assigning a first time value to the determined first position value, and polishing. Receiving the first load value of the rod, assigning a second time value to each one of the first load values, and, based on the wireless communication delay value, each of the second time values. Adjusting each of the third time values and, at the first time value, based on the first load value and the third time value, the second load value associated with the first position value is Determining.
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