Final answer:
Without more context, it's not possible to definitively state whether Lewis has a duty to win the race. The concept of 'duty' is subjective and often depends on specific agreements or expectations. Normally, there isn't an inherent duty to win a race unless further obligations are involved.
Step-by-step explanation:
The question 'Does Lewis already have a duty to win the race?' addresses a concept in ethics, a subfield within Social Studies. There's insufficient context to definitively answer the question of whether Lewis has a duty to win the race, as the concept of 'duty' is subjective and can vary depending on the perspective or the specific situation.
However, generally speaking, unless Lewis has made a promise or is under contract to win the race, he typically would not have an inherent duty to win. In most scenarios, participants are expected to put forth their best effort, but a duty to win suggests a moral or legal obligation that goes beyond this expectation.