Mortal Kombat X

THIS CAN BE DONE IN EITHER RANKED 1V1 MATCHES OR 3V3 TEAM BATTLES.
Check out the alternative solution below @GUTSY NINJA MJP created which requires 6 people.

For the 1v1 Ranked match solution:
1. Load game up
2. Online
3. Versus
4. Ranked Match

The win streak doesn't break when you either quit the game off the Xbox Home screen (that is guide button > start > quit) or pressing the off button.
(Make sure you do it quick enough to be safe). Managed to do it on 'Finish Him' a couple times.

Update: 26th April 2015
@Dogsoup mentioned this achievement unlocking for him doing team ranked battles, so it was able to verify them. Haven't tried this myself, maybe this helps out on the solution a bit?

Update: 18th May 2015
Personally I would recommend the off button method since some have reported the quitting method hasn't worked every time..(Maybe they're not doing it quick enough).

Apologise for supporting this solution in the way it can be achieved, but I'm just supporting @uhKillswitch 's point on this solution. Some people may prefer to do this legit whereas some will do whatever it takes. If you wanna save time....then yeah ^.
Please let me know if there's anything I can add.

If your struggling to get wins and would like to earn this without the anxiety that ranked battles give, you can also boost this in team battle 3v3. the method for doing this is as follows.

REQUIREMENTS FOR BOOSTING

6 players. (make a xbl party)
2 of the players searching while the rest of the party wait on the menu's.
once the 2 that are searching get put in the same lobby you want to go to the party and invite the players who are waiting on the menu. this is quicker than them searching so it reduces the chances of the slot being filled by a random player.

if you have all 6 players in the same lobby you and have decided which team will get 10 first you will have one player on the losing team quit the game (dashboard quit) during the 3rd match which in doing so will reset the wins on the lobby allowing 3 more matches to be played before it ends. so when the quitting player gets invited back in you can do the same thing again until the winning team all have 10.

as long as 1 player on the losing team quits during the 3rd match every time you will obtain this achievement in 1 lobby. however one player on the winning team will need extra wins so on his final match one of the other players on the losing team will quit to reset the lobby then its just rinse repeat for the other team.

P.S if this solution is bad please leave me a comment as to why you think so. I respect all feedback.

As we all know these "10 wins in a row" achievements are pretty awful. Unless you plan on becoming the best online in will not happen naturally. The other solutions work perfectly fine but I just got done boosting this with a friend so I wanted to give what we did so you know what to look for.

Solution: Boosting ranked matches with a friend.

What you will be doing is playing at some ridiculous hour so the fewest people (mainly Brazilians) will be playing. I did this at about 230am PST.

First you get both of you at the Versus > Player vs Player > ranked matches screen.

Then you both search at the same time.

What happens is generally (not all the time) if you search at the same time and there are not many people on it will match you and your friend up.

This is where it gets tricky. You have to communicate when the game says "opponent found" with your friend. If the game tells you "opponent found" but not your friend you are not matched up. Also your friend will get "opponent found" but you wont, thus you are not matched up. If that happens you will want to quickly hit the "b" button to back out of that search and search again. You will know you are matched up when you both say "opponent found" at the same time.

Now while doing this we sometimes had it both tell us opponent found at the same time and we waited and we were matched with different people. At that point play the match and see if you can win. If you can win fantastic one more done, if not quit to dashboard on the "finish him" screen and you will not receive a loss. I ended up having to do 3 legitimate matches and lost all 3, but I did the quit technique and kept my streak alive. When we did it for my friend we did 10 in a row without anyone interrupting us.

There is one other important note. The game tells you "you can not rematch in ranked matches." We found the best luck to get rematched is to exit all the way out of the game (quit to dashboard, press menu button, close application) after every match.
Some times we ended up resetting our MAC address if it took too long to match us up. I am not sure if any of that matters or helps, but we did it and we got the achievements.

I think this may be pretty easy to get now. I just jumped online and ran off 10 wins picking random characters. Seems that at this point there aren't many good players on.

Here was my basic strategy...

1. I was mostly just jumping & uppercutting or combo jumping & hitting in mid air and then upper cutting because I don't know any of the real moves.

2. I made it a point to get that first hit in using the strategy above. The first hit gives you a nice boost towards the X-Ray move.

3. If I was able to pull off getting enough for the Xray move in first round I would try and pull it off. I never used it in the second unless I was sure I could get it in and it would finish the round. I was mostly saving the 2nd xray move until the 3rd round and trying to pull it off early to give a solid advantage.

Good luck.