FIGHT TWENTY ROUNDSTom Couhig Victor In Briak Battle With Martin Duffy.TORONTO, Ont. May 25—Tom Cotl-hig, of Dunkirk, N. Y., was given the decision over Martin Duffy, of Chicago at the end of the twentiethround before the Crescent Athletic club here last night. Couhig had a well earned decision for, while he was the more battered of the two, Duffy hardly hearing a mark of the encounter, Couhig’s work was aggressive throughout while Duffy fought entirely on the defensive leading but seldom.