The  Boston Red Sox will pay a visit to The Bronx on Friday night, and readers of The Post can claim a  Polymarket  welcome offer and grab a $50 bonus when they create an account on the prediction platform using the   Polymarket promo code NYPMAX . The Red Sox have been in a rut for much of the first half, but there is still plenty of time for them to turn things around. The Pinstripes will look to bury their eternal rivals deeper with a strong showing in this three-game set. How the Polymarket