The next generation of goaltending development…
Mike Buckley
GDS President/Head Instructor
Two-time Stanley Cup Champion
Mike is the president and head instructor for GDS, which he founded in 2005 following playing 5 professional seasons. An alumnus of UMass-Amherst, Mike was the goaltending coach for his alma mater for 5 years. Following UMass, coach Buckley joined UNH where the Wildcats reached a #1 National Ranking.
In 2013, Coach Buckley was hired by the Pittsburgh Penguins to develop and mentor goalies in the organization. In four years, the AHL affiliate Wilkes-Barre Penguins had a record setting four consecutive AHL ALL-Star goaltenders (Zatkoff, Murray, Jarry and Desmith) under Buckley's coaching. Three of those seasons obtaining the leagues lowest GAA. In both 2016 and 2017 Buckley became a two-time Stanley Cup Champion, the first among US born goalie coaches. In 2019 Tristan Jarry was selected as an NHL All-Star, the fourth NHL All-Star to work with coach Buckley.
Throughout his time as GDS head instructor, over 40 long time GDS goalies have become NCAA Division-one goaltenders with over 90% of long-time students playing at the collegiate level. Many of which have gone on to play professionally. Coach Buckley believes in instilling a strong work ethic, confidence and a balanced approach to developing goalies through strong fundamentals, play reading, compete and positioning.
Coach Buckley also consults for leading sports management groups, equipment manufacturers and other goalie coaches in North America and Europe.
GDS President/Head Instructor
Two-time Stanley Cup Champion
Mike is the president and head instructor for GDS, which he founded in 2005 following playing 5 professional seasons. An alumnus of UMass-Amherst, Mike was the goaltending coach for his alma mater for 5 years. Following UMass, coach Buckley joined UNH where the Wildcats reached a #1 National Ranking.
In 2013, Coach Buckley was hired by the Pittsburgh Penguins to develop and mentor goalies in the organization. In four years, the AHL affiliate Wilkes-Barre Penguins had a record setting four consecutive AHL ALL-Star goaltenders (Zatkoff, Murray, Jarry and Desmith) under Buckley's coaching. Three of those seasons obtaining the leagues lowest GAA. In both 2016 and 2017 Buckley became a two-time Stanley Cup Champion, the first among US born goalie coaches. In 2019 Tristan Jarry was selected as an NHL All-Star, the fourth NHL All-Star to work with coach Buckley.
Throughout his time as GDS head instructor, over 40 long time GDS goalies have become NCAA Division-one goaltenders with over 90% of long-time students playing at the collegiate level. Many of which have gone on to play professionally. Coach Buckley believes in instilling a strong work ethic, confidence and a balanced approach to developing goalies through strong fundamentals, play reading, compete and positioning.
Coach Buckley also consults for leading sports management groups, equipment manufacturers and other goalie coaches in North America and Europe.
Steve Mastalerz
GDS Vice President/Instructor/Former Student
Goaltending Coach for The Northeast Generals, NAHL
steve@gdsgoalies.com
Steve, a long time student of Mike Buckley, played youth hockey for Top Gun before heading off to Kimball Union Academy where he was one of prep school hockey's best goaltenders. Following KUA, Steve received a scholarship at UMass-Amherst where he made an immediate impact as a freshman and a leader. Steve serverd as the goaltending coach in the LA Kings organization for the Manchester Monarchs in the ECHL for the 2016/2017 and 2017/2018 seasons. During his tenure the Monarchs reached the conference finals, and second round of the playoffs.
In four years at UMass, Mastalerz appeared in 77 and logged a 3.12 goals-against average and a .894 save percentage. The North Andover, Mass., native posted 20 wins and four shutouts, which ranks fourth in program history, while his career saves total (1,953) is fifth all-time in the UMass record book.Mastalerz, a five-time Hockey East Defensive Player of the Week in his career, set UMass' Division I single game saves record, sixth-most in NCAA history, with 75 stops in the Minutemen's five overtime victory at Notre Dame this past March 6, in the Hockey East Tournament. Following UMass, Steve joined the LA Kings organization and joined the Manchester Monarchs of the AHL, being part of their Calder Cup run and capturing the teams first Calder Cup.
Coach Steve’s work ethic and attention to detail has proved to be one of the top young goalie coaches in New England. Having played youth, prep and collegiate hockey in New England, Steve is a great resource for aspiring goaltenders in helping direct them in the right direction.
GDS Vice President/Instructor/Former Student
Goaltending Coach for The Northeast Generals, NAHL
steve@gdsgoalies.com
Steve, a long time student of Mike Buckley, played youth hockey for Top Gun before heading off to Kimball Union Academy where he was one of prep school hockey's best goaltenders. Following KUA, Steve received a scholarship at UMass-Amherst where he made an immediate impact as a freshman and a leader. Steve serverd as the goaltending coach in the LA Kings organization for the Manchester Monarchs in the ECHL for the 2016/2017 and 2017/2018 seasons. During his tenure the Monarchs reached the conference finals, and second round of the playoffs.
In four years at UMass, Mastalerz appeared in 77 and logged a 3.12 goals-against average and a .894 save percentage. The North Andover, Mass., native posted 20 wins and four shutouts, which ranks fourth in program history, while his career saves total (1,953) is fifth all-time in the UMass record book.Mastalerz, a five-time Hockey East Defensive Player of the Week in his career, set UMass' Division I single game saves record, sixth-most in NCAA history, with 75 stops in the Minutemen's five overtime victory at Notre Dame this past March 6, in the Hockey East Tournament. Following UMass, Steve joined the LA Kings organization and joined the Manchester Monarchs of the AHL, being part of their Calder Cup run and capturing the teams first Calder Cup.
Coach Steve’s work ethic and attention to detail has proved to be one of the top young goalie coaches in New England. Having played youth, prep and collegiate hockey in New England, Steve is a great resource for aspiring goaltenders in helping direct them in the right direction.
Ian Milosz
GDS Instructor
imilosz@gdsgoalies.com
Ian Milosz is a native of North Grafton, Massachusetts, where he grew up playing youth hockey. After playing for his local high school in Grafton for 3 seasons and in order to pursue his goal of playing Division 1 Hockey in college, he moved on to Junior hockey. He played Junior hockey for 3 ½ years in USPHL with
teams which included the Springfield Pics, Connecticut Jr. Rangers and Boston Junior Bruins, where he lead the Bruins team to a National Championship, posting an 8-0 record with a 0.77 GAA and a .973 SV% in the playoff run.
Ian left the Boston Junior Bruins halfway through his final season, after leading the league in wins, GAA and SV% having a 15-2 record along side a 2.20 GAA and .924 SV%. This is when he was recruited to play hockey at Boston College. Ian played alongside NHL goalies Thatcher Demko and Joseph Woll during his time with the Eagles and learned a great deal from them. After graduating from Boston College, Ian then went on to play a season professionally, in the ECHL with the Worcester Railers of the New York Islanders organization.
Ian is excited to share his knowledge and experience with GDS.
GDS Instructor
imilosz@gdsgoalies.com
Ian Milosz is a native of North Grafton, Massachusetts, where he grew up playing youth hockey. After playing for his local high school in Grafton for 3 seasons and in order to pursue his goal of playing Division 1 Hockey in college, he moved on to Junior hockey. He played Junior hockey for 3 ½ years in USPHL with
teams which included the Springfield Pics, Connecticut Jr. Rangers and Boston Junior Bruins, where he lead the Bruins team to a National Championship, posting an 8-0 record with a 0.77 GAA and a .973 SV% in the playoff run.
Ian left the Boston Junior Bruins halfway through his final season, after leading the league in wins, GAA and SV% having a 15-2 record along side a 2.20 GAA and .924 SV%. This is when he was recruited to play hockey at Boston College. Ian played alongside NHL goalies Thatcher Demko and Joseph Woll during his time with the Eagles and learned a great deal from them. After graduating from Boston College, Ian then went on to play a season professionally, in the ECHL with the Worcester Railers of the New York Islanders organization.
Ian is excited to share his knowledge and experience with GDS.
Sean Maguire
GDS Instructor/ Former Student
smaguire@gdsgoalies.com
Sean was a prospect for the Pittsburgh Penguins when he joined Mike Buckley and the GDS family in 2013. Buckley was just hired by the Penguins as the “Goaltending Development Coach” and it was his job to help Sean stay on top of his game before he graduated to Pro Hockey. After training with GDS for a year, Sean started to understand the concepts and quickly noticed how effective they were. Coming from a small coastal town on the west coast of Canada, Sean never had refined goalie coaching from a young age. He was 17 when he met Jeff Battah, his very first goalie coach. Jeff taught him all he knew up to this point often times when training an already-established goaltender it can be difficult to engrain new concepts or techniques into their game, but the GDS concepts are simple and forgiving, giving all likes of style a means to improvement.
Sean payed two full seasons with the Powell River Kings, playing 46 regular season games. In his second season with the Kings, Sean was selected to play for Canada in the IIHF World Junior A Challenge. His team won gold and Sean was named a first team All-Star and awarded goaltender of the tournament posting a GAA. of 1.49 and a .942 SA%. Later on that season Sean was offered a scholarship to Boston University for the start of 2012-2013, and was drafted by the Pittsburgh Penguins in the Forth Round.
Sean started off at BU with high expectations and, at the end of the day, exceeded a lot of them. Throughout his three seasons, he was named Hockey East top performer eleven times. Additionally, Sean was also named 2016 Beanpot MVP and Eberly award winner after stopping 41 shots in a 1-0 overtime loss to Boston College. Sean left Boston University with second highest all-time in Career SA% of .922. Later that year, Sean signed with the Pittsburgh Penguins. There, he was fortunate enough to be a black ace for the 2017 Pittsburgh Penguins' Stanley Cup victory. Sean finished playing professional hockey in the Arizona Coyotes system in 2018.
GDS Instructor/ Former Student
smaguire@gdsgoalies.com
Sean was a prospect for the Pittsburgh Penguins when he joined Mike Buckley and the GDS family in 2013. Buckley was just hired by the Penguins as the “Goaltending Development Coach” and it was his job to help Sean stay on top of his game before he graduated to Pro Hockey. After training with GDS for a year, Sean started to understand the concepts and quickly noticed how effective they were. Coming from a small coastal town on the west coast of Canada, Sean never had refined goalie coaching from a young age. He was 17 when he met Jeff Battah, his very first goalie coach. Jeff taught him all he knew up to this point often times when training an already-established goaltender it can be difficult to engrain new concepts or techniques into their game, but the GDS concepts are simple and forgiving, giving all likes of style a means to improvement.
Sean payed two full seasons with the Powell River Kings, playing 46 regular season games. In his second season with the Kings, Sean was selected to play for Canada in the IIHF World Junior A Challenge. His team won gold and Sean was named a first team All-Star and awarded goaltender of the tournament posting a GAA. of 1.49 and a .942 SA%. Later on that season Sean was offered a scholarship to Boston University for the start of 2012-2013, and was drafted by the Pittsburgh Penguins in the Forth Round.
Sean started off at BU with high expectations and, at the end of the day, exceeded a lot of them. Throughout his three seasons, he was named Hockey East top performer eleven times. Additionally, Sean was also named 2016 Beanpot MVP and Eberly award winner after stopping 41 shots in a 1-0 overtime loss to Boston College. Sean left Boston University with second highest all-time in Career SA% of .922. Later that year, Sean signed with the Pittsburgh Penguins. There, he was fortunate enough to be a black ace for the 2017 Pittsburgh Penguins' Stanley Cup victory. Sean finished playing professional hockey in the Arizona Coyotes system in 2018.
Alec Marshall
GDS Instructor/ Former Student
amarshall@gdsgoalies.com
Alec, a long time student of Coach Buckley's, started training with GDS Goaltending at the age of eight. A native of Nashua, NH, he has worked as an instructor for GDS between lessons and summer camps since 2016. After spending the entirety of his youth career in Nashua, he then played his midget hockey with the Northern Cyclones where he was a league all-star. From there, Alec split his junior hockey career between the Eastern Hockey League's Seacoast Spartans and East Coast Wizards. In his final season with the Wizards, Alec set the EHL record for assists by a goaltender, while also earning an NCAA roster spot at Southern New Hampshire University for the fall of 2018. Primarily filling a backup role for his first two seasons, Alec registered a 1.64 GAA to go along with a .946 SV%, both marks that would rank 1st all-time in program history. Additionally, he earned honors such as NE10 Goaltender of the Week, SNHU Athlete of the Week, and NE10 Academic Honor Roll.
With the 2020-21 season being cancelled due to the Covid-19 pandemic, Alec took the opportunity to increase his course load and finish his degree a year early. Alec has chosen to hang up the skates and move forward with his coaching career. He recently graduated with a BS in Business Administration with a concentration in Sport Management. Alec looks forward to the next step in his hockey journey with GDS!
GDS Instructor/ Former Student
amarshall@gdsgoalies.com
Alec, a long time student of Coach Buckley's, started training with GDS Goaltending at the age of eight. A native of Nashua, NH, he has worked as an instructor for GDS between lessons and summer camps since 2016. After spending the entirety of his youth career in Nashua, he then played his midget hockey with the Northern Cyclones where he was a league all-star. From there, Alec split his junior hockey career between the Eastern Hockey League's Seacoast Spartans and East Coast Wizards. In his final season with the Wizards, Alec set the EHL record for assists by a goaltender, while also earning an NCAA roster spot at Southern New Hampshire University for the fall of 2018. Primarily filling a backup role for his first two seasons, Alec registered a 1.64 GAA to go along with a .946 SV%, both marks that would rank 1st all-time in program history. Additionally, he earned honors such as NE10 Goaltender of the Week, SNHU Athlete of the Week, and NE10 Academic Honor Roll.
With the 2020-21 season being cancelled due to the Covid-19 pandemic, Alec took the opportunity to increase his course load and finish his degree a year early. Alec has chosen to hang up the skates and move forward with his coaching career. He recently graduated with a BS in Business Administration with a concentration in Sport Management. Alec looks forward to the next step in his hockey journey with GDS!
Mike Regan
GDS Video Coordinator
A native of South Boston, Massachusetts, Mike played goaltender from youth hockey through high school at St. Sebastian’s School. Mike then went on to work for four years as a student manager at Providence College, gaining knowledge of the importance of video analysis to team and individual success.
Over the last 10 years, Mike has worked as a Video Coach, gaining invaluable experience working directly with the coaching staff at the American and National Hockey League levels in the New Jersey Devils organization. From 2011-2017, Mike worked with the Albany Devils of the AHL. He was a member of Rick Kowalsky’s staff when Kowalsky won the 2016 Louis A.R. Pieri Award as the AHL’s outstanding head coach. From 2017-2021, Mike worked with the New Jersey Devils, during which time the team competed in the 2018 Stanley Cup Playoffs.
Throughout his time in pro hockey, Mike has worked with and learned from many NHL level goalie coaches, while also helping with on ice instruction at camps in the offseason. Mike is excited about joining GDS and looks forward to helping goaltenders continue to improve through instruction and video analysis.
GDS Video Coordinator
A native of South Boston, Massachusetts, Mike played goaltender from youth hockey through high school at St. Sebastian’s School. Mike then went on to work for four years as a student manager at Providence College, gaining knowledge of the importance of video analysis to team and individual success.
Over the last 10 years, Mike has worked as a Video Coach, gaining invaluable experience working directly with the coaching staff at the American and National Hockey League levels in the New Jersey Devils organization. From 2011-2017, Mike worked with the Albany Devils of the AHL. He was a member of Rick Kowalsky’s staff when Kowalsky won the 2016 Louis A.R. Pieri Award as the AHL’s outstanding head coach. From 2017-2021, Mike worked with the New Jersey Devils, during which time the team competed in the 2018 Stanley Cup Playoffs.
Throughout his time in pro hockey, Mike has worked with and learned from many NHL level goalie coaches, while also helping with on ice instruction at camps in the offseason. Mike is excited about joining GDS and looks forward to helping goaltenders continue to improve through instruction and video analysis.
GDS Summer Instructors
Casey Desmith - Pittsburgh Penguins, former UNH
Michael Robinson-UNH Goaltender
Kyle Chauvette- Union
John Muse - Carolina Hurricanes, Former BC standout
Jeff Woods - Long time GDS instructor
Michael Robinson-UNH Goaltender
Kyle Chauvette- Union
John Muse - Carolina Hurricanes, Former BC standout
Jeff Woods - Long time GDS instructor