 Beyond the short distances of sprinting events , factors such as an athlete 's reactions and top speed becomes less important , while qualities such as pace , race tactics and endurance become more so . 
 Beyond the short distances of sprinting events , factors such as an athlete <a href='null_genetive' title='1'><mark>'s</mark></a>reactions and top speed <a href='uninflect' title='2'><mark>becomes</mark></a> less important , while qualities such as pace , race tactics and endurance become more so . 
Beyond da short distances of sprinting events , factors such as an athlete  reactions and top speed become less important , while qualities such as pace , race tactics and endurance become more so .