Olympic 800 metres champion David Rudisha treated Hampden to a dominant qualifying run on the third day of athletics action at the Commonwealth Games.
England's World indoor bronze medallist Andrew Osagie, though, saw his hopes ended by a disqualification after tangling with Wales' Joe Thomas just before they crossed the line.
The pair exchanged cross words after finishing, Osagie coming home in third and Thomas, in fourth, but the Welshman was bumped up a place after the officials took exception to his rival's actions and qualified for the semi-finals.
Olympic long jump champion Greg Rutherford needed just one attempt to qualify for the final. The 27-year-old Englishman, who has withdrawn from his last two competitions for fitness reasons after struggling with a knee problem, leapt out to 8.05m to seal automatic qualification.
A "devastated" Andy Turner, the defending 110m hurdles champion, was ready to call time on his career after crashing out in the heats. The England team captain smacked the first hurdle and, unable to recover, his race was over by the third.
England's men have all but claimed gymnastics team gold while Scotland are poised to claim their first ever Commonwealths team medal after Tuesday's opening session at the Hydro.
The five-man team of Sam Oldham, Louis Smith, Kristian Thomas, Max Whitlock and Nile Wilson scored a total of 266.804 to sit in top spot ahead of the evening session, which has no real contenders to derail their medal bid, and did so after losing Oldham to an ankle injury on the first piece of apparatus on day two.
Scotland's five of Frank Baines, Adam Cox, Liam Davie, Dan Keatings and Dan Purvis are in silver medal position with a total of 257.603 with Canada sitting in bronze with 252.078.
In the women's competition, Wales kept their medal hopes on course with a final score of 160.095 to sit top of the standings ahead of hot-favourites England, who will finish off their competition in the evening session with Australia and Canada.
At Tollcross, New Zealand's Lauren Boyle - beaten by Jazz Carlin in the 800m final - was the fastest qualifier for the 400m freestyle final. Little over 12 hours after becoming the first Welsh woman in 40 years to win Commonwealth swimming gold, Carlin finished third in her heat behind Canadian Brittany MacLean and Scotland's Hannah Miley.
Ten-time Commonwealth medallist Chad le Clos could add to his collection after reaching the final of the 200m individual medley, although he was taken down by Scottish hero Daniel Wallace in his heat. Wallace, who took gold in the 400m, overtook the South African during a brilliant breaststroke leg to record the second fastest time of the four heats behind Australia's Daniel Tranter.
Adam Vella and Mark Chapman made it a golden double for Australia on the shooting range in Dundee.
Vella, a three-time Commonwealth winner in pairs events and an Olympic bronze medallist, won shotgun gold in the men's trap ahead of England's Aaron Heading. Compatriot Chapman clinched gold in the 25m rapid fire pistol, with double Delhi gold medallist Harpreet Singh of India having to settle for silver and England's Kristian Callaghan bronze.
England shooter David Luckman claimed his second gold medal of Glasgow 2014 in the full-bore rifle Queen's Prize individual event.
Canada's Catharine Pendrel won mountain bike gold as the focus moved seven miles south from the Sir Chris Hoy Velodrome to Cathkin Braes Country Park and the new, purpose-built mountain bike trails. Her compatriot Emily Batty claimed silver, and Rebecca Henderson of Australia bronze.
England's Nick Matthew made a swift and triumphant return to the squash court following his men's singles success on Monday, teaming up with Adrian Grant to defeat Bradley Hindle and Daniel Lewis-Zammit of Malta 11-5 11-6 in 24 minutes in their Pool A opener at Scotstoun.
New Zealand's netball team crushed St Lucia 88-19 at the SECC on Tuesday but are battling an injury crisis ahead of their crunch match against Jamaica. In other early action at the SECC, England thrashed Trinidad and Tobago 70-24 to remain on course for second place in Pool B and a spot in Saturday's semi-finals.
New Zealand edged England 2-1 in men's hockey, while Trinidad and Tobago won their first ever hockey game at the Commonwealth Games with a 4-1 triumph over Malaysia.