What is the National Grading Scheme? In case you aren't sure about it or how it works, a brief explanation is provided below.

All experienced players will be familiar with the Master Points System, where you accumulate points over time. A significant problem with the Master Points system is that it reflects not so much current playing standard, but more the duration of a person's bridge playing career, and their frequency of playing. The National Grading Scheme, which commenced in 2010, is intended to overcome that limitation, by reflecting a person's current playing standard. Here is a brief summary of how it works: Brief intro to NGS.pdf. It is completely separate from, and independent of, the Master Points system, which continues to run in parallel. 

All members of an EBU affiliated club, such as Warrington Bridge Club, automatically have an individual EBU number allocated to them, and are part of the National Grading Scheme. Each time you play in an EBU-affiliated event, such as a duplicate pairs evening at Warrington Bridge Club, your personal NGS rating is adjusted up or down, dependent on how you scored in the event, and on the standard of the opposition (as determined by their NGS ratings). In fact, if you look at the results for a duplicate pairs session on the website, you will see at the bottom something like 

and if you click on that, you can see the name and NGS ranking of each player in that event who has an NGS ranking, and a list of any players who are unranked (ie they have not played in sufficient events yet to have a ranking, or perhaps do not yet have an EBU number, eg a guest or visitor).

Your precise rating is a percentage number to 2 decimal places, eg 51.32%.   However, ratings are also defined in 13 "playing card" bands, ranging from ‘Ace’ at the top to ‘Two’ at the beginners’ end. Each band covers a 2% range of grade values, with ‘Eight’, in the middle, having a range of 49 to 51%. Therefore, if you are an "above average" player, in terms of the entire EBU-affiliated national bridge population, your NGS band will be a 9 or above. You can now check everyone's current NGS band, by looking in the Member Area, updated at the start of each month.  

Everyone can check their own grading and progress, by logging on to https://www.ebu.co.uk/ngs. Click on the My EBU tab and log in. You will need your EBU number and password. If you've never used this before, you will need to set up a password, which requires an email address for the EBU to send to you login details. The instructions on the EBU screen are fairly easy to follow. Alternatively, if all you want to see is your own (or anyone else's) present NGS rating, you can simply go the website and enter a surname in the search box.