Southern 100
... that in 1983 Brian Reid was the first rider to average over 100 miles per hour (160 km/h) during the Southern 100 motorcycle races on the Isle of Man?
... that in 1983 <a class="mw-redirect" href="./Brian_Reid_(motorcycle_racer)" id="mwBVU" rel="mw:WikiLink" title="Brian Reid (motorcycle racer)">Brian Reid</a> was the first rider to average over <span about="#mwt27" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"100"},"2":{"wt":"mph"}},"i":0}}]}' id="mwBVY" typeof="mw:Transclusion">100 miles per hour (160</span><span about="#mwt27" typeof="mw:Entity"> </span><span about="#mwt27">km/h)</span> during the <b id="mwBVc"><a href="./Southern_100" id="mwBVg" rel="mw:WikiLink" title="Southern 100">Southern 100</a></b> <a href="./Motorcycle_racing" id="mwBVk" rel="mw:WikiLink" title="Motorcycle racing">motorcycle races</a> on the <a href="./Isle_of_Man" id="mwBVo" rel="mw:WikiLink" title="Isle of Man">Isle of Man</a>?