grade is worth the risks involved . Unless the injustice is truly profound, you might be better off accepting that, just as the candy machine sometimes steals your quarter, then later gives you two Mars Bars for the price of one, you probably have the GPA you deserve, even if you are occasionally docked a point or two on a particular score. Think about the overall context of the grade. If you are challenging two points on an exam that is worth 100 points and the exam is worth 30% of your final grade, is it really worth it to go through this hassle? Before you make a decision about challenging a grade, think about the bigger picture: How much do you really gain in the final analysis? If the answer is potentially a substantial amount, then go for it. If it is literally, hundredths of a point, then you may want to rethink your strategy. If you challenge your grade, you will probably not be remembered fondly if you ask that professor for a recommendation . Professors are people--some are humble , but many take pride in their life's work and you should have a strong basis for presenting an argument for someone who has spent their life studying the topic they are teaching. Remember, most professors start and often continue to be researchers in their field. They may not directly trash you on the recommendation letter , but you'll probably never get that glowing praise you were otherwise