We know that each person gets three battles per day. And based on the screenshot above, I was lucky enough in my second battle to draw opponents ranked at my current arena rank (Rank: D) as well as two ranks above that (Rank C and Rank B). And you'll notice the base "Victory Points" earned for beating those opponents is vastly different.

At rank D - I can get the following:

200 Victory Points for beating another Rank D

280 Victory Points for beating a Rank C

400 Victory Points for beating a Rank B

You also get a bonus multiplier for beating opponents in certain ways. It's really unclear at the moment how to improve that bonus multiplier but we have some theories based on what we've been told (from other users) that we'll get into below. But for starters, let's stick with rank.

Let's assume the above is constant -- that every time you face the same rank, you get base 200 points, one rank above is 280 and two ranks above is 400. If this is the case, someone who luckily drew 5 matchups where they faced off against someone 2 ranks above and 1 matchup where they drew someone one rank above, would theoretically be hitting 2280 arena points (plus bonuses to hit just above 2300). So those numbers at the top -- really anything around 2400 should be a logical number.

But how can someone control that? Is it just luck.

Well, not completely.

You see, in the notices when arena was first announced, there was a line that talked about how we would each get 3 battles per day and we could REFRESH our opponents 3 times per day. In the first round of arena, I did not see any option (but I may have missed it) to refresh opponents. But this time, it exists. Take a look at this tiny button at the bottom of the above screenshot - it says "Upd. Enemy (3)"

By hitting that button, you can refresh your list of opponents in hopes of getting a higher-ranked opponent draw.

But you can only do that 3 times total per day in your 3 matchups per day. So if you draw a 400, you may want to take that match. But using opponent refreshes, you might be able to increase your total base arena points (ditching the 200 matches if possible for better base matches) especially on day one and day two when the opponent CP is often pretty low.