Which event involves wrangling a calf from horseback?

The event that involves wrangling a calf from horseback is calf roping. In calf roping, also known as tie-down roping, a rodeo contestant rides their horse to chase after a calf and attempts to lasso it quickly. After successfully catching the calf with a loop of rope, the contestant dismounts and ties three of the calf's legs together to secure it. This event tests both the rider’s roping skills and their ability to control the horse, making it a key part of rodeo competitions that emphasizes speed and technique.

Other options may involve elements of roping or riding, but they focus on different aspects or types of animals. For instance, bareback riding is an event focused on riding a bucking horse without a saddle, and breakaway roping also involves roping but is typically done with a calf for practice rather than competition. Team roping involves two riders working together to catch a steer rather than a calf. Thus, calf roping is specifically designed around the wrangling of calves, making it the correct choice.