aaarghhhhhh.
Have you, at any stage, expressly said "Given that I have overperformed since returning, will this be recognised in my review of performance, regardless of the fact that objectives were not set?" I don't see anywhere that this is expressly the case. I know you've assumed it, but that's not the same as having it confirmed.
If this happened in my last org (where the computer is God and no objectives = shite appraisal) and the person in question had enjoyed a stellar period of performance then a retrospectively entered set of 'standard' objectives would be entered, and then performance against them would be marked 'exceeded' so that it would force out the 'right' answer come bonus time. The stuff put inot the system would be whatever was needed to get the right answer out. We had over 100,000 people getting formally appraised every year, so - as you can imagine - this kind of thing happened with more than a handful of people every year (almost always when there was a mangerial change or someone started mid-way through a year)
Have you specifically asked the question?
If you have, and the answer is that you will only get 'satisfactory' gradings despite an exceptional performance then you need to raise it with HR as an administrative problem (and certainly not as discrimination), and ask them how they can ensure that you receive recognition for an exceptional performance given that this is not being recorded by mgmt at the moment. They will probably come back with one of 3 replies:-
- They tell you that you will get marked according to your performance, regardless of timing of entry into the system
- They tell you you will get marked based on previously recorded assessments/performance
- They tell you that you will in this situation get marked as satisfactory regardless of your performance levels during the year
Seems to me you are assuming no 3 will apply, regardless. You need to get told that explicitly by HR or your manager, in writing. Then you may have a good reason to jump up and down saying that this isn't fair. Even then, though the 'blame' for this is partly at your own door.
So. You need to get a full answer to the exam question in writing first. Then you need to pull together all the evidence to support your assertion that you have exceeded what would normally be considered satisfactory for someone at your level. Then you need to present it clearly, concisely and unemotionally as a set of evidence to show that you should be rewarded for an exceptional performance again.
The worst thing you can possibly do is go in all guns blazing and crying discrimination at something which has been created simply by administrative error. If someone came to me presenting all the stuff you have presented here in the way you have repesented it in this thread, saying that you were being treated unfairly and discriminated against then I would firstly check what the manager intended to do performance-wise, would make sure that the actual performance was appropriately graded (regardless of objective setting) and give you an earful for not managing your own objective-setting process. And I would mark you down as unhinged and potentially litigious, which is not a very nice place for you to find yourself.
Come to me instead presenting this as an admin problem to be resolved, along with a set of clear evidence to show that your performance has been exceptional, and I would do all the same things but would not also be filing you in the 'dangerous people' file.