New, Better Formula For Calculating The GDF
The formula for calculating the Goaltending Dominance Factor has been amended to better reflect actual goaltending performance. The original formula was based on save percentage over a number of games played (a minimum full-value mark of 13 games played over ten sessions), which has become an outdated concept in an age when some goalie are facing 60-plus shots in one game while others face 60 shots in an entire session. To make the formula more accurate, the minimum full value has been changed to save percentage with at least 100 shots faced over the last ten sessions. As all major goalie records are based on shots faced rather than games played, this change to the GDF brings it in-line with the way other goalie records are calculated. This also follows 2005's recalibration of the Scoring Dominance Factor (SDF) to reflect sessions played and quality of competition faced rather than purely points-per-game.
Why did I change it? Simply put, having a ranking where a mediocre goaltender who faces half the shots shots can be ranked ahead of the person having the greatest goaltending season ever is silly. Here's an example of the change; I think you'll agree that it's much better:
Old Formula (games played-saves-shots-rating)
Bron Mach 18-250-310 0.8065
Joern Hornhardt 13-196-251 0.7809
Chris Jackins 41-497-662 0.7508
Josh Wilson 16-116-175 0.6629
K.J. O'Connor 7-245-271 0.5704
Seamus O'Connor 9-117-142 0.4868
Carlos Ruzza 8-88-120 0.4513
Lorne Bilinski 7-128-156 0.4418
Laird Bilinski 7-75-96 0.4207
Brodie Yano 6-103-127 0.3743
Nathan Robson 6-52-66 0.3636
Justin Gordon 4-88-98 0.2763
New Formula (games played-saves-shots-rating)
K.J. O’Connor 7-245-271 .9041
Justin Gordon 4-88-98 .8800
Seamus O’Connor 9-117-142 .8239
Lorne Bilinski 7-128-156 .8205
Brodie Yano 6-103-127 .8110
Bron Mach 18-250-310 .8065
Joern Hornhardt 13-196-251 .7809
Chris Jackins 41-497-662 .7508
Laird Bilinski 7-75-96 .7500
Carlos Ruzza 8-88-120 .7333
Josh Wilson 16-116-175 .6629
Nathan Robson 6-52-66 .5200
