Sports Authority is facing a likely bankruptcy filing in March after missing payments to its creditors over the past few months. The Colorado-based chain, with 450 stores across the country, is a leader in its category along with Dick’s, Academy Sports and Bass Pro Shops. But sporting goods retailers have been losing market share to specialty apparel stores like Lululemon, discounters like Walmart, and of course the ubiquitous Amazon.com. The bankruptcy filing will likely be accompanied by the closing of nearly 150 Sports Authority stores; no word yet on the fate of those in our area.