Carbon Dioxide

The Horseracing Integrity and Welfare Unit (HIWU) has granted a temporary stay of enforcement to connections in six pending total carbon dioxide (TCO2) cases, all of which are out of Pennsylvania. In total, 11 of the 14 pending and resolved TCO2-related cases reported since the advent of the Horseracing Integrity and Safety Act (HISA) have concerned horses that ran in Pennsylvania. Of the three other TCO2-related cases, one ran in California and two were out of Ohio. When asked about the reason behind the temporary stay of enforcement, HIWU spokesperson...

Robertino Diodoro, currently fifth for wins in this year's North American trainer standings, has been suspended 30 days and fined $1,000 after a colt under his care, Aristocracy (Tapit), tested positive for elevated total carbon dioxide (TCO2) in the blood after finishing sixth in the Apr. 22 $200,000 Bath House Row S. at Oaklawn Park. According to two rulings issued by the Arkansas Racing Commission on Monday, May 15, Aristocracy is disqualified from purse winnings, and Diodoro will have 15 days of his suspension stayed "on the condition that no...