Save percentage (SV%) calculator

The classic SV% trap: only shots ON GOAL count, never missed shots or shots blocked by a defenseman. A shot that hits the post without going in counts as a missed shot, not a save, a distinction that plenty of people tracking stats get wrong without realizing it. The calculator itself cannot catch this upstream error: it trusts the numbers entered, so the rigor happens at the moment of logging the game, not at the moment of calculating. A game where missed and on-goal shots get mixed up skews SV% in either direction depending on the mistake made.

SV% reads very differently by level. In the NHL, a good save percentage sits around .910 and an excellent one tops .920. In youth and junior hockey, benchmarks drop and vary far more: between .850 and .900 is generally considered solid, because defenses are less structured and quality chances more frequent. The same goalie can post .930 in a weak league and .870 in a strong one without their real ability changing one bit: league context matters as much as the number itself, and comparing two goalies from different leagues on SV% alone almost always misleads. The only honest comparison stays between goalies in the same league, same age group and a similar shot volume.

Over a single game, SV% swings wildly: one goal on 8 shots already gives 87.5%, and a shutout on 10 shots does not mean much either, variance dominates over such a small sample. It becomes meaningful after about ten games measured with the same rigor. RinkLog computes SV%, GAA and HDSV% automatically with every shot logged from the stands, and shows the trend across the whole season instead of one isolated number that can lie from game to game, with the full history kept game after game.