Objectives: We assessed the effects of a cognitive-behavioral intervention on English field hockey players' appraisals of organizational stressors, emotions, and performance satisfaction. Design: A concurrent, across-participants, multiple-baseline, single-case research design with a three months post-intervention follow-up. Method: Four high-level female field hockey players participated in a four phase intervention that lasted between 24 and 26 weeks: rapport-building and observation (phase I), baseline monitoring (phase II), educating the players and facilitating acquisition of a cognitive restructuring technique (phase III), and encouraging integration of the technique during sport performance (phase IV). Questionnaires and social validation were used to record the participants' appraisals, emotions, and performance satisfaction throughout the intervention. A three months post-intervention follow-up was conducted to assess the participants' retention of the intervention effects. Results: Reduced threat and loss appraisals and elevated challenge appraisals were reported immediately after Phase III had been introduced. Pleasant emotions and performance satisfaction increased while unpleasant emotions decreased throughout the intervention. Social validation immediately post intervention and at the end of the follow-up period indicated sustained adaptive changes in each of the outcome variables. Conclusions: Cognitive restructuring represents a promising technique for optimizing high-level hockey players' appraisals. Challenge appraisals and pleasant emotions appear to be linked with increased performance satisfaction and positive intervention effects can be retained for a period of three months post-intervention. Researchers should examine the effectiveness and efficacy of the cognitive restructuring technique with other populations to develop a robust evidence base for appraisal optimization in sport. (C) 2017 Elsevier Ltd. All rights reserved.