samflamont:

When you are young you are taught to listen and look for your coaches.  This is very true especially if you hit a ball to right field that will surely be a double and possibly a triple.  The rule when running bases is any ball in front of you means you have to decide if you can make it to third or if you should pull up for a double.  You know your speed you can see the ball and you should be able to judge if you will be safe or not.

Now on a ball behind you it is your responsibility to pick up your coach.  If you hit a ball over the right fielders head and you know for sure you have a double about half way to second you need to pick up your third base coach to find out if he wants you to push it or hold at second.  Why so early?  you do this early so you can make the adjustment with your eyes back to the bag if he wants you to come over to third.  You don’t want to get your feet crossed up and trip over the bag.  Also, if you are going to push it you want to take a small arch like you do at first on hit, just on a smaller scale.  So picking your coach up early will allow you to do this.  Also, if he wants you to hold up you can make sure you have time to pull up in order to not over run the bag.  Also, this will keep you from pulling a muscle with an abrupt stop.

Remember do not make the first or third out at third so on the ball in front of you, you must be 100% sure you will be safe.  I count this as mental error for players not a physical error.  I can deal with physical mistakes or errors but mental mistakes and errors drive me crazy.  Play hard and play smart, now go have some fun.