Jakob Ingebrigtsen obliterated the 28-year-old 3,000m world record by more than three seconds before Armand Duplantis broke his own pole vault world record at the Diamond League meeting in Silesia.
Norway's Ingebrigtsen looked in disbelief as he crossed the finish line in seven minutes 17.55 seconds, breaking the previous record of 7:20.67 set by Kenya's Daniel Komen in 1996.
Komen's time had been the longest-standing men's athletics world record in an individual track event.
In the pole vault, Sweden's Duplantis cleared 6.26m, one centimetre higher than his previous best set as he won Olympic gold in Paris earlier this month.
His second-attempt clearance on Sunday was the third time the 24-year-old has broken the world record this season, and his 10th overall.
Duplantis was joined by American Sam Kendricks and Greece's Emmanouil Karalis - who won Olympic silver and bronze respectively - in jumping 6m.
"This year I focused on the Olympics, the record just came naturally because I was in good shape," Duplantis said.
"So I am not surprised with the record today, but I am thankful."
