When you 'bridge the gap' between one thing and another, you aim to reduce the disparity, amount or distance between the two things. You might bridge a gap in knowledge, a relationship or in wealth or other measurable things. This a useful expression when discussing social issues or relating numbers to each other. It is most often used in professional or formal situations.

1. The match between Darren and I wasn't even close. I simply blew him out of the water!
2. The food in the new restaurant is much better than anything else in town. It blows all the other restaurants in the area out of the water.

1. Our new product is going to blow the competition out of the water! It really is unlike anything that has come before.
2. The lawyer presented new evidence to the court that blew the prosecution's case out of the water. The defendant will now almost certainly be acquitted.