Well according to the posters here these fights dont count since they weren't at the limit, dang leonard and hearns...all that for nothing
its called a weight limit not a criteria. Its better to weigh a pound or 2 under the limit than 5 pounds over
At the time of the first fight, catchweight meant the two combatants could weigh whatever they wanted -- i.e. no weight limit for either. That's how Lamotta and Robinson had catchweight bouts like one where Lamotta came at 160 3/4 and Robinson at 145: techinically at the time, a light heavyweight vs. a welterweight. Somehow, in recent times catchweight has come to mean the EXACT OPPOSITE of what the term originally meant: now people use it to describe a situation where two fighters agree to meet a certain weight limit between the divisional weight limits. It's a strange thing when a word comes to mean opposite of what it originally meant.
Fight 2 was with SRL at 160 and Tommy at 162 as it was already said. Never heard of a catchweight for the unification bout in 1981.