It’s scientific. The toss of a coin isn’t necessarily fair.

While the entire research into the mechanics of a toss are here – what you need to carry back is this:

1. There’s a higher change of the side facing up to come up on top on landing
2. If a coin is spun there’s a very high chance the heavier side will face down on dropping over
3. A coin will also land on it’s edge – only once in 6000 throws

More strategy on how to win in toss-ups