A promo code, BROAD, is being offered by Chalkboard, which includes a $100 bonus and a free pick for various sporting events. The specific events eligible for the promo code appear to vary, with some outlets reporting it can be used for World Cup matches, such as USA vs Belgium, while others mention MLB games, the NBA Finals, or UFC 329. The details of the promo code's application seem to differ across reports, with different events and matchups being mentioned.