Verbal report data during task performance provide information concerning an individual's activation of critical input and concepts from long-term memory that form an initial representation of the problem (Ericsson & Simon, 1993). This initial problem representation serves to guide interpretation of input and retrieval of relevant information accessed into and out of working memory as solutions are generated or task performance progresses.Sport specific knowledge bases are unique in that both tactical and motor executions have aspects of declarative and procedural knowledge. I will present continua that depict levels of analysis in sport expertise research to address various sport specific knowledge bases;, a model of protocol structure designed to systematically analyze heeded information during simulated and actual sport performance; and a model illustrating expert-novice differences in levels of processing during tennis competition.This model depicts two specialized memory adaptations termed action plan and current event profiles (McPherson, 1999a; 1999b; 2000). Action plan profiles consist of rule-governed prototypes stored in long term memory used to match certain current conditions with appropriate visual and/or motor actions. These conditions are typically explicit environmental cues (e.g., ball location and player locations) or general game strategies (e.g., players are taught to move to the net on a short shot or use topspin on a second serve in tennis) that drive the shot selection. These profiles may reflect players' current skill level, style of play, and/or desires. Typically, practice drills develop action plan profiles since response selections are based exclusively on the current environmental context such as player positions and ball location. Current event profiles consist of tactical scripts which guide constant building and modifying of pertinent concepts (past, current, and/or future) to monitor during the competitive event. These profiles are stored as situation prototypes in long-term memory and ready for activation or updating when the need arises. Thus, experts will continuously build and modify their current event profile during competition. These profiles may be used to compensate and make adjustments during time constrained moments (e.g., to anticipate an opponent's series of shots during a rally). Elite performers are predicted to use both current event and action plan profiles to make accurate response selections and regulate response executions during competition. Recent research in tennis is presented to illustrate the development of these memory adaptations (McPherson, French, & Kernodle, 2002) and instructional implications regarding current event profiles are noted.