19holeA question or two for you;
How many rounds before this happens? Range before the rounds?
Can you post a picture of the glove?
If your glove is properly fitted, you should get 5 rounds out of it. If you hit an average bucket of range balls that also would count as a round.
Take a full practice swing ( or two) before each shot on the course, that is another round.
As you can see it all adds up quickly! I have never had a glove split at the seems, but I have worn them out on the thumbs. A lot of excess wear on a glove is a result of: grip pressure being very high, the glove fits too loose, or a less than perfect grip by the player.
A few nice words to FootJoy customer service might get you a replacement, but there are no gaurantees on that!
Rick has said 99% , you need to get fitted correctly, and have a pro look at your grip, if your hand is in the wrong position, your thumb could be moving and making excess wear.