Regan Smith NASCAR Xfinity Series results at Kentucky
| Year | Race # | Start | Finish | Car # | Sponsor | Engine | Owner | Crew Chief | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points | 
| 2003 | 16 | 38 | 32 | 22 | Danny Bost Motorsports | Chevrolet |  |  | provisional | 160 | 0 | 0 | accident | 19460 | 67 | 
| 2004 | 16 | 23 | 32 | 50 | Enzyte | Chevrolet |  |  | 174.803 | 143 | 0 | 0 | handling | 16015 | 67 | 
| 2005 | 16 | 23 | 41 | 58 | Glynn Motorsports | Dodge |  |  | 177.608 | 18 | 0 | 0 | accident | 18105 | 40 | 
| 2006 | 16 | 6 | 16 | 35 | McDonald's | Ford |  |  | 176.401 | 199 | 0 | 0 | running | 25406 | 115 | 
| 2007 | 16 | 1 | 19 | 4 | Waste Management | Chevrolet |  |  | 177.026 | 200 | 2 | 45 | running | 28498 | 111 | 
| 2013 | 15 | 14 | 30 | 7 | Hellmann's Centennial | Chevrolet |  |  | 171.876 | 153 | 0 | 0 | running | 18250 | 14 | 
| 2013 | 27 | 14 | 12 | 7 | TaxSlayer.com | Chevrolet |  |  | 175.661 | 200 | 0 | 0 | running | 19745 | 32 | 
| 2014 | 15 | 14 | 28 | 7 | AmericasPower.org | Chevrolet |  |  | 173.155 | 197 | 1 | 2 | running | 19345 | 17 | 
| 2014 | 27 | 10 | 5 | 7 | TaxSlayer.com | Chevrolet |  |  | 173.600 | 200 | 0 | 0 | running | 27000 | 39 | 
| 2015 | 16 | 13 | 10 | 7 | Great Clips | Chevrolet |  |  |  | 200 | 0 | 0 | running | 26978 | 34 | 
| 2015 | 27 | 3 | 3 | 7 | TaxSlayer Bowl | Chevrolet |  |  | 178.719 | 201 | 0 | 0 | running | 43973 | 41 |