fastest way to get array block based on value contained within the block

functions.php

<?php

// results generator
function node_modify_riders_array($rider_id)
	{
		$fields = get_field("rider_series_data", $rider_id);
	
		foreach($fields as $field_key => $field_val)
			{
				$new_fields[$field_val["series"]] = $field_val;
			}
			
		return $new_fields;
		
	}
function results_table_generator( $post_id, $event_id ) {
	
	$series		 	= wp_get_post_terms($event_id, 'series');
	$results_tables 	= get_field('results_table', $event_id); 
	
	if($results_tables)
	{
		foreach($results_tables as $results_table)
		{
		
			$type = $results_table['type'];
			$data = $results_table['data'];
			
			echo '<div class="table-responsive">';
			echo '<table class="table table-condensed table-striped table-data" style="width:100%">';
			echo '<tbody>';
			
			if($data)
			{
				foreach($data as $row)
				{
				
					$rider_id = $row['rider'];
																				
					if (!empty($rider_id)) {
					
						$rider_series_data 	= node_modify_riders_array($rider_id);	
						$series_id		= $series[0]->term_id;
											
						$name 			= get_the_title( $rider_id );
						$nationality 		= get_field('rider_nationality', $rider_id);
						$time			= $row['time'];
						
						$team 			= $rider_series_data[$series_id]["team"];
						$contstructor	 	= $rider_series_data[$series_id]["constructor"];	
						$machine 		= $rider_series_data[$series_id]["machine"];
						$race_number 		= $rider_series_data[$series_id]["race_number"];
					
					    echo '<tr>';
					    echo '<td class="table-label">'.$name.' | '.$rider_id.'</td>';
					    echo '<td class="table-label">'.$race_number.'</td>'; // not returning anything
					    echo '<td class="table-label">'.$nationality.'</td>';
					    echo '<td class="table-label">'.$team)'</td>'; // not returning anything
					    echo '<td class="table-label">'.$contstructor.'</td>'; // not returning anything
					    echo '<td class="table-label">'.$machine.'</td>'; // not returning anything
					    echo '<td class="table-value">'.$time.'</td>';
					    echo '<td class="table-value">'.$series_id.'</td>';
					    echo '</tr>';
					    
					}					
				}
			}
			
			echo '</tbody>';
			echo '</table>';
			echo '</div>';
			
			echo '<hr/>';
			
		}
		
		echo '</ul>';
	}

}