For mapping individual sports inside the [sports centre][1] you just have to create individual objects (nodes, areas or ways) and add the corresponding [leisure][2] and [sport][3] tag. For example the stadium should be tagged with [leisure=stadium][4] and maybe [sport=multi][5]. You can see an example [here][6]. [1]: http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dsports_centre [2]: http://wiki.openstreetmap.org/wiki/Key:leisure [3]: http://wiki.openstreetmap.org/wiki/Key:sport [4]: http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dstadium [5]: http://wiki.openstreetmap.org/wiki/Tag:sport%3Dmultihttp://wiki.openstreetmap.org/wiki/Tag:sport%3Dmulti [6]: http://www.openstreetmap.org/?lat=50.6766&lon=11.27468&zoom=17&layers=M

For mapping individual sports inside the [sports centre][1] you just have to create individual objects (nodes, areas or ways) and add the corresponding [leisure][2] and [sport][3] tag. For example the stadium should be tagged with [leisure=stadium][4]. [leisure=stadium][4] and maybe [sport=multi][5]. [1]: http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dsports_centre [2]: http://wiki.openstreetmap.org/wiki/Key:leisure [3]: http://wiki.openstreetmap.org/wiki/Key:sport [4]: http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dstadiumhttp://wiki.openstreetmap.org/wiki/Tag:leisure%3Dstadium [5]: http://wiki.openstreetmap.org/wiki/Tag:sport%3Dmulti

For mapping individual sports inside the [sports centre][1] you just have to create individual objects (nodes, areas or ways) and add the corresponding [leisure][2] and [sport][3] tag. For example the stadium should be tagged with [leisure=stadium][4]. [1]: http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dsports_centre [2]: http://wiki.openstreetmap.org/wiki/Key:leisure [3]: http://wiki.openstreetmap.org/wiki/Key:sport [4]: http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dstadium