A base coach in baseball refers to a member of the offense’s coach team. Each team has two base coaches, which are sat in the dedicated coach’s box during the game near first and third base.
There are two base coaches, a first base coach and a third base coach respectively. Their main responsibilities include helping the direction of the baserunner, preventing pickoffs, and helping relay signals sent from the manager to the players around them.
The First Base Coach
The first base coach’s main responsibilities revolve around the batter. Their main duty is to ensure the batter is going to stop at first base or not for a runner already on first.
The Third Base Coach
Whilst the first base coach is responsible for the batter, the third base coach has more in the way of responsibilities. Their job includes sending runners around third and second base, and helps decide whether a runner should run on a hit.