Hax

Hax refers to having lucky spawns in the game, i.e. having spawns which are better than average. Uberhax refers to having spawns which are significantly better than average. Obtaining maxes in any altar requires uberhax. Hax can also refer to a single spawn that is very close to the altar and thus is easily scored, or a cluster of spawns that are all extremely close, much closer than the typical spawns in a given altar.

In the other direction, antihax refers to having unlucky spawns in the game, and uberantihax refers to having extremely unlucky spawns in the game.

A reasonable quantiative standard of calibrating hax is the following, in terms of the number of standard deviations n above a player's average that he is able to score with the given spawns. Assuming a normal distribution of scores (which is pretty accurate), this means that about 68% of rounds will be average; 2.5% of rounds will be uberhax, and 2.5% of rounds will be uberantihax.
 * Less than -2: uberantihax
 * Between -2 and -1: antihax
 * Between -1 and 0: average (slightly bad)
 * Between 0 and 1: average (slightly good)
 * Between 1 and 2: hax
 * Greater than 2: uberhax

Standard deviations
The following are some rough estimates of standard deviations of solo scores in each altar: The standard deviation gives a measure of how widely spread you should expect your scores to be based on influence of spawns. Higher standard deviation in an altar means that there is a wider range of how hax or antihax the spawns can be in that altar.
 * Air altar: 1.9
 * Mind altar: 1.4
 * Water altar: 2.3
 * Earth altar: 1.8
 * Fire altar: 3.1
 * Body altar: 2.4