As the ITF, WTA, and ATP shift from red clay to grass, I posted two polls on twitter.  If you have not already voted, click on the tweets below and vote.

Have you ever played on Red Clay/terre battue?
(A surface quiz for https://t.co/dDS4yEeiWA Readers and tennis players)

— Dan Martin (@DanMartinTennis) June 15, 2017

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Have you ever played on grass?https://t.co/dDS4yEeiWA Surface Poll Part 2

— Dan Martin (@DanMartinTennis) June 15, 2017

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