Steven Mullaney struck a half-century as honours ended even after the first day of Nottinghamshire and Derbyshire at Trent Bridge.
Having been put into bat, Nottinghamshire managed 229 all out in 67 overs as Tony Palladino claimed figures of four for 44.
In gloomy conditions Derbyshire responded with 52 for two, with captain Billy Godleman unbeaten on 18.
Conor McKerr, a 19-year old paceman on loan at Derby from Surrey, had a dream start to his first class career by snaring a wicket with just his fourth delivery.
The Johannesburg-born bowler induced an edge from Jake Libby in the second over of the day, which flew sharply to Wayne Madsen at first slip.
The second wicket pairing of Mullaney and Cheteshwar Pujara added 56 but they were parted when Palladino had the Indian Test player, who had a brief stint with Derbyshire in 2014, caught behind for 29.
“I think in some ways we are a little bit frustrated because we got ourselves into a pretty good position and then we gave it back to them," said head coach Peter Moores.
“They took the initiative and drove it home and I thought they bowled really well in the second half of the day.
“It was nice for us to get a wicket right at the end of the day, which evened it up a little bit.”
A heavy shower then lopped off the remainder of the morning session and neither McKerr nor Tom Taylor could find their lengths upon their return.
Mullaney and Samit Patel made them pay spectacularly, rattling along with a stand of 72 in only 9.2 overs.
Patel flat-batted McKerr over the ropes at point, for the first six of the match, and stroked five other boundaries in a quickfire 28.
His 24th delivery was his last, as Palladino altered the momentum with one that nipped through the defences and knocked the leg stump back.
Mullaney had reached his 50 from 78 balls and advanced to 76 from 95 when he fell in the same manner, giving Palladino his third wicket of the day and his second within the space of six deliveries.
Luis Reece nipped out Michael Lumb cheaply and the slide continued when debutant McKerr returned to dismiss Chris Read for nought.
Riki Wessels was unbeaten on 38 at tea, an innings that included a pulled maximum from the second delivery sent down by Jeevan Mendis.
He added just one more upon the resumption before edging Taylor behind.
The same bowler then put Brett Hutton out of his misery, yorking him for nine.
Palladino pinned Luke Fletcher lbw and last man Harry Gurney swished unsuccessfully at Mendis and was bowled, leaving Luke Wood undefeated on 21.
With the floodlights burning brightly, Derbyshire made an assured start to their first innings before losing Reece for 17, caught at slip by Wessels, off Wood.
In the final over of the day Shiv Thakor also perished, nudging Hutton into the hands of Patel for 13.