Sports training devices for use in [ tennis, ] baseball, softball, football, soccer * and * [, speedmitten, lacrosse, ] golf [, and hockey, namely, tennis training devices comprised of a tennis ball positioned on a cord that is attached to a stationary object on either end; ] *, namely, * baseball training devices comprised of a baseball positioned on a cord that is attached to a stationary object on either end; baseball training devices comprised a softball positioned on a stationary tee; softball training devices comprised of a softball positioned on a cord that is attached to a stationary object on either end; softball training devices comprised a softball positioned on a stationary tee; [ football training devices comprised of a tethered football; ] soccer training devices comprised of a tethered soccer ball; [ speedmitten training devices comprised of a tethered speedmitten birdie; lacrosse training devices comprised of a tethered ball; ] golf training devices comprised of a tethered golf ball [ ; and hockey training devices comprised of a tethered hockey puck ]