[NY Times] The ITIA spokesperson said that this (ITIA's person arriving outside of the testing window Vondrousova had given) is because the organization wants the testing program to be unpredictable. In addition to their whereabouts submissions, players can also be randomly tested at any time

An ITIA spokesperson defended random testing procedures after an outside-arrival issue involving Marketa Vondrousova's testing window. The explanation was that the anti-doping program is meant to stay unpredictable, with players also subject to random tests at any time. The comment addresses how whereabouts-based checks are handled in tennis.