The given statement expresses two different sentiments about losing - one about losing after trying hard and another about losing without effort. Let`s analyze each assumption separately:

Assumption I states that losing after trying hard is excusable. This assumption aligns with the statement, as it mentions that losing after competing hard is fine. Therefore, Assumption I is implied in the statement.

Assumption II states that losing without effort is regrettable. This assumption also aligns with the statement, as it states that losing without trying hard is what disappoints the speaker. Therefore, Assumption II is implied in the statement.

By analyzing both assumptions, we can conclude that both I and II are implied in the statement. Therefore, option 3 - "Both I and II are implied in the statement" is the correct answer.