 The most basic type of meetings are all @-@ comers track meets , which are largely small , local , informal competitions that allow people of all ages and abilities to compete . As meetings become more organized they can gain official sanctioning by the local or national association for the sport . 
 The most basic type of meetings <a href='drop_aux' title='1'><mark>are</mark></a>all @-@ comers track meets , which <a href='drop_aux' title='2'><mark>are</mark></a>largely small , local , informal competitions <a href='null_relcl' title='3'><mark>that</mark></a>allow people of all ages and abilities to compete . As meetings become more organized they can gain official sanctioning by the local or national association for the sport . 
Da most basic type of meetings alll @-@ comers track meets , which largely small , local , informal competitions allow people ofallll ages and abilities to compete . As meetings become more organized they can gain official sanctioning by the local or national association for tdasport .