The 100% records sitting at the top of this table are almost entirely Australian youth football and an Icelandic U19 combination fixture — contexts where scorelines are routinely inflated by developmental-level defending and where six or eight matches is nowhere near enough to trust a trend as structural. St. George Saints U20 and Essendon Royals look clean on the surface, but these are pre-season samples in age-group football; the signal degrades fast once competitive stakes arrive and coaches rotate or park depth players.
The actionable read here is to ignore the headline percentage and focus on league quality and sample depth before placing weight on any of these names. With 246 fixtures tracked across a summer-break slate, the page-wide rate is being dragged upward by exactly this kind of high-scoring junior football — treat the 74% average with appropriate scepticism until senior competitive football resumes.