<Maybe it would help if you see how an actual USCF elo score is computed. The pre-Glickman technique is very easy to walk through.

Let's look at Nellaf's 7-0 performance against his opposition:

facepan 1957
Scubbabisto 1624
whikki 1677
Thad 1758
juangrande 1805
CMoore 1150
penswift 1975

Under the old Elo system, you get 400 points more
than each player over your first 20 games or so if you win, subtract 400 from them if you lose, and add their rating if the game is a draw, then average the results.

For "obvious results" (like losing to a player > 400 points over your provisional rating, or winning against someone 400 below you) not being factored in to pull you down.

1957 + 400 +
1624 + 400 +
1677 + 400 +
1758 + 400 +
1805 + 400 = 8821 + 2000 = 10821

Over 5 games, this is a 2164.2 rating.

Now the 1150 result is not goverened by
the "+400" rule since is it an obvious result
that a 2164 should beat an 1150.

So, the player is given another game credit at the
provisional rating clip.

So, add 2164 to the running total:


10821 + 2164 + 1975 + 400 = 15360

Divide by the 7 games and you get 2194.

This is no where near 2417, as you can see.

To get a 2417 rating, you need to be undefeated against an average field of 2017. He never even played one person with such a rating.