Rain washed out almost the entire day's action at the Samsung Open in Lugano, Switzerland.
Marketa Vondrousova and Yulia Putintseva were locked at one set apiece, with the scores 4-6 7-6 (7/2) when the heavens opened.
That has meant the majority of Monday's matches have been shifted into a reshuffled Tuesday line-up.
At the Claro Open in Bogota, top seed Tatjana Maria beat Georgina Garcia-Perez 6-3 6-2, Sweden's Johanna Larsson is through to the next round after beating Ysaline Bonaventure 7-6 (7/4) 6-1 and Anna Blinkova beat wild card Maria Camila Osorio Serrano 6-2 6-4.
Nicole Gibbs, world number 118, lost to qualifier Daniela Seguel 6-2 6-2, while Anna Karolina Schmiedlova took two hours and 24 minutes to see off Irina Falconi 7-5 0-6 6-1.
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