The Kenyan emphatically capped the two-day meeting with a victory in the 800 metres which provided reassurance that the world record holder is once again approaching his unbeatable best.
His knee injury seemingly cured, the Olympic champion finally escaped the shackles of self-doubt to rediscover the omnipotence which saw him reign over London 2012, his winning time of 1:43.34 moving him to the top of the global rankings.
"I expected to run a season's best time despite the conditions not being the best for a perfect time," he said. "I'm happy to have done what I came for."
Ominously for those who would hope to deny him Commonwealth gold when he returns to Hampden in three weeks' time, the swagger is back. "I will be looking for another good race there," he said. "The track is fast and with good weather and perfect everything, it could be another good run."
Chris O'Hare and Jake Wightman can as yet only dream of having such an aura in the middle-distance arena. Yet in the 1500m the two young Scots added a little to their reputations with personal bests that will fortify their preparations for Glasgow 2014.
For O'Hare, it provided a note of reassurance after a month in which a hamstring issue pained body and mind. With 150m to go, the Edinburgh man was stapled to the shoulder of industrious Kenyan Silas Kiplagat, a regular foe through the junior ranks.
Short of race fitness, the world championship finalist appeared destined to fade as the sprint began. That he regressed to fifth was no disgrace. His ambition had already paid its dividend with a time of 3:35.06 that he could scarcely have anticipated.
"When I start to move up I'm fighting with myself to go past people," he said "I kept going for it, with 300 to go I found myself on the shoulder of the leaders. You could hear the crowd go and maybe I should have sat back a little bit. They helped me get carried away which was fine."
His readiness proven, O'Hare should be a formality to receive the discretionary third place in the event for next month's European Championships when the selectors convene tomorrow in Birmingham.
His medal odds in Zurich, he knows, are significantly shorter than in Glasgow. "At the start of the season that was the plan. Run the Commonwealths, do my best there, then go and try to win a medal at the Europeans."
Wightman, who turned 20 on Friday, gave himself a belated gift with a lifetime best of 3:35.49, just one spot behind his Scottish rival. Only Steve Cram has now gone quicker among Britons at the same age than the reigning European junior champion.
If O'Hare was in pain afterwards, his compatriot felt only elation. This was six seconds quicker than he had run the distance before, an extraordinary progression which atoned for his self-denial of 24 hours before.
"I needed something like that because yesterday was a bit of an ordinary day," Wightman said. "This is a bit special. The cake and champagne will have to wait until the end of the season, though.
"I said it would be nice to get under the European standard of 4:37.50 so to get under that is something I'm pleased about. I don't know if I'm going to beat that during the rest of the season."
Maybes aye, maybes no. For O'Hare and Wightman this was a vital staging point. Both have greater ambitions ahead. The elder, with Rio on his mind, will look at Rudisha's elevation as a goal, not an impossibility.
"If I think I'm ready then I'll give it my all," O'Hare said. "That's pretty much the only way I know how to run."