By alaskalinuxuser 
The results from our ACF sanctioned Grand Prix are in!
We had 11 players for the tournament last Saturday, May 17th, and it was a fun atmosphere. Lots of good play, a couple of upsets, and even a new unrated player!
Congratulations to Landon Burton Hoard for a clean sweep of the competition!
There was a question at the end about tie breaks and I had a hard time explaining the plus/minus scores. After brushing up on it at home, I hope that we can provide better answers in future tournaments, but the point in question was how does Modified Median work?
If the players who tie have even scores (meaning even number of wins and loses for themselves, not against each other) – in this case that would be 2 wins, 2 losses, being even – then the high and low score of their opponents are discarded.
For example, the fourth place tie of the 5 players. They will take their opponents scores, throw out the top score, and the bottom score, and add the other scores together, in this case two scores, because of only four rounds.
Now, if the players are tied with a plus score, such as the two players tied for 2nd place, being a score higher than 2.0, in this case +1 at 3.0, 3 wins and 1 loss, or two wins and two draws, then only the lowest score of their opponent is thrown out – in this case adding three of their opponents scores together.
But if the player has a minus score, meaning less wins than losses, like players 9 and 10, being less than the even score of 2.0, then instead, only the highest opponent score is removed.
To further add to the tie breaks confusion, if there are 9 or more rounds, then the number of removed scores is doubled. Also, any unplayed games count as 1/2 point for the purpose of calculating someone else’s tie, but for calculating their own tie, and unplayed game gets an adjusted score of 0.
Hopefully that’s not too confusing, and that this explanation is helpful!