If one of your picks results in a tie, push, or void, your entry may still be valid, but the payout can be downgraded based on the remaining valid picks.
How do I know if my entry is Perfect Score?
When submitting your entry, you may not see a separate game mode option.
Instead, look at the checkbox on the entry screen:
If the checkbox is highlighted, you have opted into a Perfect Score entry.
If the checkbox is not highlighted, you have opted into a Top Score entry.
Example
In this example, the checkbox is highlighted, which means the entry is submitted as a Perfect Score entry.
Perfect Score vs. Top Score
With Top Score, you can win as long as your score is higher than everyone else in the contest.
With Perfect Score, your payout is guaranteed only when all picks are correct, subject to downgrade rules for ties, pushes, or voided picks.