Guess the COMBINED grid position of Checo and Nico (e.g. 8+9=17) and reply with your answer, the tag #ChathamPredictor and your shoe size!
— Sahara Force India (@clubforce) November 21, 2014
Competition ends at the start of qualifying! Don't forget to include the hashtag #ChathamPredictor and good luck!
— Sahara Force India (@clubforce) November 21, 2014
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