Sydney University have put up their best defensive display of the season under the lights at Uni Oval No.1 to hold out Manly 20-17, and make it eight wins in a row in the process.

West Harbour pulled off the shock of Round Nineteen, putting in their best performance of the season to down Randwick 43-18 at a stunned Coogee Oval.

Last Saturday saw one of the biggest upsets in many a Shute Shield season, as eleventh placed Penrith saw off the might of second placed Southern Districts 45-41 at Nepean Rugby Park. In what is fast becoming a watershed year for the boys at the foot of the mountains, they added the scalp of the Rebels to those of Warringah and West Harbour to notch up their fourth victory of 2010, and keep them hot on the heels of Gordon, now only 4pts ahead.