In Place pools, you must pick a horse or greyhound to be placed for each race in the pool. The exact number of positions that are considered 'placed' positions (or 'places') is determined by the number of runners in the race. The number of places available is clearly shown on the coupon for each leg.
At the top of the coupon, we display important race facts for the selected leg:
See also What is a placed horse or greyhound?