Heads I win, tails you lose humorous
Used to say that no matter what happens, I will win
He was so arrogant that he supposed it was a heads-I-win-tails-you lose case. At last, he had to beg for help from his father.
Flipping a coin is my forte. Heads I win, tails you lose.
The expression is used at the beginning of a competition to say that you hope the most fastest, strongest, or most skilled succeed person
wins.
To win only by a smaill amount; to win narrowly
A game in which all sides have potential to win
Win something easily, or with less or no effort
The phrase "heads I win (and) tails you lose" is first recorded in The Second Essay on the Catholick-religion: Viz. On Its Suppression and the Substitution of Heathenism, or Idolatry (London: Printed for John Worrall, 1728), by Guy Vane—as quoted in the Oxford English Dictionary (online edition, March 2021).