In this study, we examined the effects of female coaches’ nonverbal pride and shame expressions on female field hockey players’ emotions and performance and considered the role of two potential moderating factors. Across two experiments, a between (emotional expression manipulation) within (pre- and post-manipulation) subjects design was employed. A female hockey coach was scripted to deliver performance feedback randomly displaying pride or shame to skilled players (Experiment 1, n = 38; Experiment 2, n = 44) after they had performed a passing test. Players then performed the passing test for a second time. In both experiments, players reported their emotions, perceptions of the coach, and connection with the coach. In Experiment 2, players also rated their emotion regulation ability. The results showed that displayed pride elicited pride in players while displayed shame elicited shame in players. Further, coaches’ pride and shame expressions had differential effects on players’ performance. Displayed pride consistently improved players’ performance. Displayed shame mainly worsened performance, but players’ ability to regulate their own emotions seemed to buffer these negative effects. There was further evidence that players’ emotions could underpin the performance effects, particularly when players knew the coach. These findings advance the literature by providing further experimental evidence for when and how coaches’ pride and shame expressions influence players’ emotions and performance and have important practical implications for coaches aiming to optimize performance.