A four-state stamina card in hand-rolled SVG — several match metrics stacked as small multiples over one shared elapsed-minute axis, each read against its own opening-window baseline, with a reader-chosen cut (end of set 1, 2, …) quantifying the drop-off in the metric's own unit and as a share of that baseline, a stated 1.5% noise floor before anything is called decay, and a minutes ledger apportioned by largest remainder.