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This is a clarification on Section 7.4 of the Organized Play Guide (Version 4.1).

The current section detailing the calculation of Differential at the end of a round has been reviewed by the OP team. We have expanded the section to make it more readible, and clarified some details to better explain what happens in the different scenarios that can occur. The term "non-score means" has been removed, expanding on the victory scenarios** outside of normal victory conditions** by differentiating between the following:

1. Concession, or other external means such as Code of Conduct disqualification.

2. Gameplay-based effects, or when both players deck out.

This interim ruling applies until this is integrated into the next revision of the OPG, coming later this year. It is subject to change in the final version, and any rewordings will be documented in the announcement article for the updated OPG.

A player's Differential for the round is calculated by subtracting the opponent's final score from the player's final score.

*For Example: If Paul beats George by 100-35; Paul receives a Differential of +65 (100-35=65), and George receives a Differential of -65 (35-100=-65).*

The following rules apply:

- •
**Points in excess of 100 or below 0,**do not count towards Differential*.

*For example: a player ending a game on 120 points is recorded as having 100 points. A player ending a game on -5 points in First Edition is recorded as having 0 points.*

• In the case of a**True Tie**or a normal**Bye**, affected players receive a Differential of 0.

• Players with an**Earned Bye**receive a Differential of +100.

• If the**winning player's score is equal or lower than that of the opponent**, the winning player receives a Differential of +1 and the losing player receives a Differential of -1.

•**Normal victory conditions**are typically those listed in that game's rulebook (or an associated rules document for a format) as the primary means of determining a winner. Typically, this is based on a number of points, and may also include the completion of certain missions. Victory can also be achieved**outside of normal victory conditions**, by means such as concession, gameplay-based effects, or both players decking. Differential for these situations are calculated as follows:- • If due to
**concession**or an**external means**(such as a*Code of Conduct*ruling by the Tournament Director), the winning player ends the game on 100 points and the opponent ends the game on 0 points (i.e. winner receives a Differential of +100 and opponent receives a Differential of -100).

• If due to**gameplay-based effects**(1) or**when both players no longer have cards in their draw decks**(2), the winning player ends the game on 100 points regardless of what the player's current score is at the time. Differential is then calculated as per normal against the opponent’s score at the time.

*For Example (1): Matt and Rob are playing Second Edition. Matt has zero points and faces Up the Ante, chooses not to prevent and overcome the dilemma and subsequently completes the mission on that attempt. Matt completes the mission, and wins the game by the text on Up the Ante. When calculating Differential, Matt scores 100, while his opponent, Rob, ends the game with a score of 35. Therefore, Matt's Differential is +65, and Rob's Differential is -65.*

*For Example (2): Danny no longer has any cards in his draw deck and Troy draws the last card in his draw deck. Danny is ahead on victory conditions, so Danny ends the game on 100 points. Troy ends the game with a score of 30 points, as such the Differential will be +70 for Danny and -70 for Troy.*

• Gameplay that**modifies**normal victory conditions**do not**affect gameplay-based effects that end the game**outside of the normal victory conditions**.

*For Example: Ben and Greg are playing Second Edition. Ben plays the Phoenix and moves it to a non-headquarters mission to trigger its ability. Greg subsequently meets the conditions on Terrasphere 8 and wins the game. Ben was on 70 points. Greg is considered to have scored 100 points for the purposes of Differential calculations.* - • If due to

*If rules specify a **change of the required point**s from those in the game's normal victory conditions specified in the rulebook, Differential is instead capped at that number.

*For Example: In a Second Edition Slipstream tournament, where you only need 50 points to win; points in excess of 50 do not count towards Differential, players with an Earned Bye receive a Differential of +50, and if a game ends due to concession or external means, the winning player receives a Differential of +50 and his or her opponent receives a Differential of -50, and if the game ends due to gameplay or deck-out, the winning player (based on points scored and missions completed), receives a score of 50 points.*

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