[Plugin: The Events Calendar] Sort by date of event and not date of post

I’m assuming that you’re familiar with editing your own template files?

I use this in my template for ordering it by eventdate.

<?php $wp_query->set('meta_key', '_EventStartDate');
		          $wp_query->set('orderby', 'meta_value');
    			  $wp_query->set('order', 'ASC');
    			  $wp_query->get_posts(); if(have_posts()) : while(have_posts()) : the_post(); ?>

ASC = From old->new

For this code, how do you make sure that if an event has passed, the post no longer shows up in the loop?

Thanks!