After the finalist are decided, the next two fastest swimmers are designated as alternates. The faster is named first alternate, while the other is named second alternate. If finalists cannot compete, the alternates are called to take their place, often on a moment's notice. The final swimmer in a relay. Starting blocks, the platforms located behind each lane.
Some pools have blocks at the deeper end of the pool, while some pools have blocks at both ends.
Blocks have a variety of designs, and can be permanent or removable. Bonus Consolation Heat . The bonus heat may refer to consolation finals or to a heat held in addition to consolation finals. Championship Finals . The fastest heat of finals when multiple finals heats are held.