This is actually possible to boost, however it’s a complicated method. First you and your partner must be the same level. Next, search for each other in the same level. Search and trade wins after every other match to make sure the other doesn’t level up, keep doing this until you have your 10 wins. Also keep in mind you need 50 wins for a title.
If you do plan on earning this normally then keep these tips in mind:
Knowing your character – Know the do’s and don’ts with whomever you decide to use for online. Know which moves of yours can be used to punish mashers quickly and etc.
Patience – Don’t rush into battle head first with a Chakra dash, back up and wait for openings to get in, don’t use your jutsus unless it has a high chance of hitting, random jutsus are asking to be punished.
Support – Know your supports and utilize them. For example Hidan, his support is a continuous slash on your opponent, some characters have a lock dash ultimate jutsu which could be perfect to use if his support were to hit.
If you do plan on boosting it, you can find a partner in the Achievement Trading Thread.