Much like traditional plus/minus, scoring chance plus/minus is a simple stat. It credits a player with a minus for a scoring chance against, and a plus for a scoring chance for. An advantage scoring-chance plus/minus has over traditional plus/minus is it only credits a player with a plus or minus when he is directly involved in the play that produces the scoring chance. For obvious reasons, this puts defensemen at a substantial disadvantage, as d-men have more responsibilities in the defensive-zone; as such they will produce more scoring chance minuses than the average forward.
For the purpose of this statistic, only scoring-chances that resulted in a shot-on-not were included. It is important to note that like Fenwick and Corsi, scoring-chance plus/minus is strongly dependant on how players are used; particularly offensive, neutral, and defensive-zone start percentages.
DEFENSEMEN
Among defensemen, Andrei Markov had the lowest even-strength scoring-chance plus/minus rating at minus-46. This is representative of Markov's low offensive-output at even-strength. Alexei Emelin had the second-lowest plus/minus at minus-40, while Josh Gorges was minus-33.
Norris Trophy winner PK Subban was minus-1, as he helped produce 58 even-strength scoring chances, while being directly responsible for 59 against. These are incredible numbers for a defenseman, and are made even more incredible when placed alongside the plus/minus figures of his defensive-teammates.
CENTRES
Among centres, David Desharnais had the highest ES scoring chance plus/minus rating at plus-63. Lars Eller was second at plus-39, while Tomas Plekanec (despite facing a high level of competition) was plus-32. Jeff Halpern was plus-12, and had the highest defensive-zone start percentage among Montreal centres. Ryan White was minus-1; White was hurt by a lack of involvement in scoring chances for, as defensively, only Jeff Halpern was responsible for fewer scoring chances against per-minute of ice-time than number 53.
WINGERS
Offensive-wingers can put up some huge numbers in this stat. As evidenced by Max Pacioretty's team-leading plus-76. Rookie Brendan Gallagher had the second-best scoring-chance plus/minus among wingers at plus-63.
Other wingers with solid scoring-chance plus/minus include Brian Gionta and Alex Galchenyuk. Gionta was simply solid defensively, while Galchenyuk played protected minutes until Eller's injury in the playoffs.
Colby Armstong's number is the result of substantially more defensive-zone starts than other wingers, while Moen's number is reflective of his on-ice impact. Ryder's number is surprisingly-low, and is a product of a two particular games where he was directly responsible for 3 scoring chances against in each game.
Now if only Subban could play well in his own-zone. ;)