https://matteocampagna.com/en/registry/technique/clicker-to-release-time Changes to this claim in Matteo Campagna's evidence registry: its status, its year-by-year history, revisions of the page. en-gb https://matteocampagna.com/en/registry/technique/clicker-to-release-timeThis is a measurement rather than an opinion, and it is one of the few points in the registry where independent research groups report close figures. Since 1987 six groups, with different instruments and at distances from 8 to 90 m, have found an interval of the same order between the click and the release: the measurements from 1987 to 1993 sit around 180 milliseconds, those since 2010 between 140 and 165, and the full range of values measured runs from 120 to 240. The interval narrows in the more skilled archers, and in the largest sample, thirty-nine elite archers, it varies from one person to the next by only 10.4 per cent. For a trained archer the interval therefore sits between one and a half and two tenths of a second: closer to two tenths in the measurements of the 1980s and 1990s, closer to one and a half in today's. What the figure does not tell us is what fills that time: the same duration fits both a reaction to the sound and the tail end of a movement already under way, and these data do not choose between the two readings.claim:tempo-clicker-rilascio:revision:2026-08-24:3Mon, 24 Aug 2026 08:00:00 GMT https://matteocampagna.com/en/registry/technique/clicker-to-release-time#storiaA single case, a skilled archer trying three ways of drawing, finds 161 milliseconds with the usual technique and 163 with a low draw, while with a technique the archer does not use the time rises to 304. It adds no sample, but it hints that the usual figure belongs to the trained movement: change the movement and the interval grows longer and less regular.claim:tempo-clicker-rilascio:history_entry:2026-07-15:2020Wed, 15 Jul 2026 08:00:00 GMT https://matteocampagna.com/en/registry/technique/clicker-to-release-time#storiaThe largest sample in the bibliography, thirty-nine elite archers from four countries tested before a World Cup event, gives a mean of 0.163 seconds, with a spread between archers of only 10.4 per cent. The figure confirms the measurement and places it, as in 2011, towards the lower end of the historical range: a good one and a half tenths rather than a full two.claim:tempo-clicker-rilascio:history_entry:2026-07-15:2017Wed, 15 Jul 2026 08:00:00 GMT https://matteocampagna.com/en/registry/technique/clicker-to-release-time#storiaEighteen years after the French measurement a purpose-built chronometer appears: in four elite archers at 18 m the release follows the clicker by about 143 milliseconds, the same value on arrows scoring 8, 9 and 10. It is a fourth independent group, and the figure sits a little below the 180 of the 1990s while staying inside the range already measured. The status holds.claim:tempo-clicker-rilascio:history_entry:2026-07-15:2011Wed, 15 Jul 2026 08:00:00 GMT https://matteocampagna.com/en/registry/technique/clicker-to-release-timeclaim:tempo-clicker-rilascio:new_claim:2026-04-13:corroboratoMon, 13 Apr 2026 08:00:00 GMT