OBJECT OF THE INVENTION The present invention may be included in the technical field of sports training devices, in particular for golf training.

More specifically, the object of the invention refers to a surface simulating the grass of a golf course comprising different holes the use of which can be made available or unavailable so as to customize the training difficulty.

BACKGROUND OF THE INVENTION

Currently, golf training platforms or surfaces may be used as the typical children "mini golfs" or for training professionals of this sport.

However, most of these devices are long and flat surfaces with a single hole which does not allow the user to customize or set the training difficulty. Document US20153601 1 1 (A1 ) discloses a portable golf training device configured for forming an elongated flat surface and a cavity at the end thereof for catching the ball. Document US2016038816 (A1 ) describes a golf training system that allows using multiple golf sticks and establishes different alignments, locations and the striking area depending on the golf stick the user chooses. Lastly, document US2014073445 (A1 ) provides a method including different steps where the user selects the position of the hole, the ball position, the placement area, among others, by means of a computer system, a screen and a central controller.

Therefore, considering the previous documents it is necessary to find alternatives directed to solutions that allow customizing and adapting the golf training to the user needs. DESCRIPTION OF THE INVENTION

The object of the invention refers to a surface simulating the grass of the golf courses comprising different holes the use of which can be made available or unavailable thus allowing customizing the training difficulty.

Therefore, an aspect of the present invention refers to a device for golf sport training comprising:

- a surface simulating the golf courses grass, and

- at least two holes being distributed along the surface simulating the golf courses grass the use of which can be made available or unavailable, thus allowing customizing the training difficulty.

In a preferred embodiment the surface simulating the golf course grass is made of artificial turf.

In another preferred embodiment the use of the holes in the grass simulating surface can be made available or unavailable by means of a fold-out closing system. DESCRIPTION OF THE DRAWINGS

FIG 1 - It shows a general view of the device. PREFERRED EMBODIMENT OF THE INVENTION

The following is the description of a preferred embodiment of the invention based on the attached figure.

FIG 1 - It shows a general view of the golf course simulating surface (1 ) having holes with the fold-out closing system that allows use of said holes to be made available (3) or unavailable (2).