NBA JAM: On Fire Edition

You must earn 10 total Arena Medals (Cumulative) to earn "Arena Vet" (25G).

When you enter the Online Arena, you will notice a countdown for time remaining in the session... The session restarts every week. During a session you must win five times to earn a medal. (5 wins = 1 medal. 10 wins = 2 medals. 15 wins = 3 medals. 20 wins = 4 medals. 25 wins = 5 medals.) The medals are awarded in the standard bronze, silver, gold, etc. order, but color doesn't matter... only the number of times you earn a medal.

If the session time ends before you earn the next medal you are working toward, your win total toward the medals will reset, but you keep your medals earned.

Arena Challege medals do not count toward this achievement. You will notice you can win "medals" based on feats accomplished in the Online Arena by you, your friends, and co-op partners... these do not count toward the medals needed for this achievement.

The quickest way to earn this achievement it to rack up 25 wins in two consecutive weekly sessions.

***Update. This game is likely old enough now that it can be easily boosted at any time***
This achievement can be boosted easily. The online lobbies are usually "dead" late in the night and early morning in the USA. People in other countries may have better success trying to be online during the early morning hours of the USA. You can see how many players are online, and I had a lot of success matching up with my friend when there were less than 250 people playing. In my experience when less than 100 people were online, getting matched up was almost automatic... with around 250 online, it seemed to be a 75% chance to be matched up. If you get matched up with the wrong person, just quit out. (I recommend making your boosting partner a prefered player, and doing the opposite for anyone else that continues to pop up again and again as someone you are being matched up with. To be polite, you can say their player skill is "Too Good" as the reason to avoid them.)

Once you get matched up with your boosting partner. Have the player who is going to lose the match quit after 30 seconds in the game. You will gain a win if your opponent quits after 20 seconds have been played. I had better success making the match count as a win/loss if we waited over 30 seconds instead of the 20 it says is needed to count as a game played.

You will also recieve while working toward this achievement.

*If this solution helped you in some way, please vote positively. If you think it needs improvement, please let me know how in a private message or by leaving a comment.*

Winning five games online within the timeframe (a week) set out in the NBA Jam OFE arena gives you your first arena medal and unlocks the Arena Noob achievement.

The maximum number of medals you can gain each week is five - bronze (5 wins), silver (10), gold (15), platinum (20) and diamond (25).

Therefore from having 0 medals, the quickest way to gain 10 is to win 25 online games in two consecutive weeks.