Watch 3-5 Players
Find 3-5 players that you particularly want to watch and add 10-15 of them to your watch list. After all the auctions have finished come back and look at the average price that they have sold for. This will give you the market price at that particular time, and so when selling place your BIN slightly above this price, which was almost always guarantee you a sale. This will also make you an expert in the pricing of this player, meaning you will always be able to spot a good deal on the UT marketplace. To buy, search for the lowest BIN price of these players, and then place them with a start price lower than the average market price, and a BIN now just above the average. Repeatedly do this, and there is a profit potential of 20-30k in 1 night. Be careful though because due to market fluctuations price can go up and down, and so check the average market price every 2-3 days to make sure that you can continually make profit.
Example
We have 12000 coins, and buy 3 Clichy's LB at 3800 BIN, 4000 and 4100 BIDs. The average market price at the time was around 5k coins, and so we put our cards up 4500 start 4900 BIN, leading to sales of 14700 and a 2.3k profit after tax. Because we knew the market price at the time, we were able to buy the cards cheaply, and sell them on for a good relative profit.
Find 3-5 players that you particularly want to watch and add 10-15 of them to your watch list. After all the auctions have finished come back and look at the average price that they have sold for. This will give you the market price at that particular time, and so when selling place your BIN slightly above this price, which was almost always guarantee you a sale. This will also make you an expert in the pricing of this player, meaning you will always be able to spot a good deal on the UT marketplace. To buy, search for the lowest BIN price of these players, and then place them with a start price lower than the average market price, and a BIN now just above the average. Repeatedly do this, and there is a profit potential of 20-30k in 1 night. Be careful though because due to market fluctuations price can go up and down, and so check the average market price every 2-3 days to make sure that you can continually make profit.
Example
We have 12000 coins, and buy 3 Clichy's LB at 3800 BIN, 4000 and 4100 BIDs. The average market price at the time was around 5k coins, and so we put our cards up 4500 start 4900 BIN, leading to sales of 14700 and a 2.3k profit after tax. Because we knew the market price at the time, we were able to buy the cards cheaply, and sell them on for a good relative profit.

By having 9 Mascherano's in our Watch List ^^ we can work out the average price at the time, and never go above it when buying, meaning we will always make a nice relative profit when selling.