An independent drug test on Jeremy Mayfield was negative for methamphetamines, contradicting the results of a NASCAR test taken 40 minutes earlier, the driver claimed in court documents filed on Tuesday.
In response to NASCAR’s claim that Mayfield again tested positive for methamphetamines on July 6, Mayfield submitted an affidavit to the US District Court that said he traveled to Frye Regional Medical Center in Hickory, North Carolina, right after NASCAR collected a sample at his Catawba County home.
Mayfield said he received confirmation from Laboratory Corporation of America in Raleigh that his sample was negative on July 10 — the same day NASCAR informed his counsel that its sample was positive.
“It is impossible for methamphetamine to be in my body as I have never consumed that substance,” he said.
The filing also denied accusations made last week by his estranged former stepmother, who said in her own affidavit she witnessed Mayfield use methamphetamines at least 30 times and that the driver cooked it himself until the ingredients became too hard to obtain.
She also said she witnessed him use the drug at Darlington Raceway in 1999.
“Lisa Mayfield’s assertion that I used methamphetamine just prior to the 1999 Darlington race is a lie,” Mayfield wrote. “I finished second in the 1999 Darlington race.”
Mayfield was suspended on May 9 for failing a random drug test taken eight days earlier for what NASCAR has said was a positive test for methamphetamines. The driver sued, and a federal judge issued an injunction on July 1 that lifted Mayfield’s suspension based on the argument that NASCAR’s testing system is flawed.
NASCAR asked US District Court Judge Graham Mullen last week to reverse the injunction based on new evidence — the failed July 6 test and Lisa Mayfield’s sworn testimony.