These pictures were all taken in public settings that may not be considered "street photography" in the literal sense, they still are of the candid nature of that genre.
Part of the allure of shooting sports and the athletes that play them are the moments when facial expressions communicate the feelings involved in the present task. Those moments could be anticipated or already completed efforts of the athletes' actions, whether it be excitement, disappointment, concentration, pain, or just plain enjoyment.
These are just regular people of various ages who enjoy the sport they play. These photos show participants from the anticipation of a baseball pitch, planning a basketball move, or the wait for a basketball rebound, to the successful completion of surfing a large wave.