I just had a look at your profile. I see the problem - I think the average of the included times is over 10% away from number 1. How the score works is each 1% away from number 1 is 10 points. So a speed score of 90 means you're 1% away, 80 means you're 2% away, etc. So a speed score of 0 is 10% away, and anything more than that will still be 0. So to get it above 0, you'd need to only include times that are <10% away from number 1. You've had some around 7%, for example, so if those were the only ones included, you'd have a score around 30. So yes, the method of keeping bad scores away from the account will improve it, though it will take quite a long time now to eliminate all those high percentages.