function posts_for_current_author($query) {
    global $pagenow;
    $tempuser = wp_get_current_user();
    if( 'edit.php' != $pagenow || !$query->is_admin )
        return $query;

    if( in_array( 'client-event', (array) $tempuser->roles ) ) {
        add_action( 'views_edit-post', 'child_remove_some_post_views' );
        global $user_ID;
        $query->set('author', $user_ID );
    }
    return $query;
}
function child_remove_some_post_views( $views ) {
    unset($views['all']);
    unset($views['publish']);
    unset($views['trash']);
    unset($views['draft']);
    unset($views['pending']);
    return $views;
}
add_filter('pre_get_posts', 'posts_for_current_author');