This has been the only way I have found out to go up in the win streak levels. Have never made it to tier 15 though. Most ever wins I have had in a row was 38. Here is what you do. Get you a maxxed out bike in AMX and use a 75% engine boost if you have one. Perfect tap boosts are good as well. Any boost that kicks up your bike. You will need these in Motorcross and Step Up. You will not need any trick boosts. Now go to your tricks and put your highest rated trick in the first box. A 95 or higher is good. In 2nd and 3rd box put your very first 2 tricks in those boxes. Those are rated up to 40 and 42. Now look at your trick average. It should read 60 or below and that's what your opponent sees. Speed and Style and Freestyle are not any problem now. You can't be beat. When you get higher in your win streak that's when it gets tough. Game will start matching you with higher tier bikes in Motorcross. The game doesn't want you to reach win streak tier 15. Have tried many times with the Banshee with perfect taps thru everything and still lose with the other player either cheating or with a lower tier bike. Yes this is also a cheat or is it? Perfect taps are the key in all the races. To me you work the game to your advantage but not cheat. And anyone that does hack the game just to cheat is no better than dirt. Those individuals in my opinion need to be placed in front of a firing squad and shot. That may sound harsh but what good are ya if all you know how to do is steal from others who earn it.