2018 Monster Energy AMA Supercross Championship
Las Vegas - 250SX Showdown LCQ Results
Sam Boyd Stadium
Las Vegas, NV US 
May 5, 2018
250SX Showdown LCQ Results
| Rider | Time | Interval | Best Lap | Hometown | Bike | |
|---|---|---|---|---|---|---|
| 1 |  Martin Castelo | 1:04.860 | 6 Laps |  | Yamaha YZ250F | |
| 2 |  Josh Osby | 1:04.420 | +00.358 | Valparaiso, IN  | KTM 250 SX-F | |
| 3 |  Brandon Hartranft | 1:04.659 | +03.007 | Brick, NJ | Yamaha YZ250F | |
| 4 |  Justin Starling | 1:05.021 | +06.506 | Deland, FL | Husqvarna FC 250 | |
| 5 |  Josh Mosiman | 1:05.830 | +10.023 | Sebastopol, CA | Husqvarna FC 250 | |
| 6 |  Chris Howell | 1:05.923 | +11.043 | Spokane, WA | Husqvarna FC 250 | |
| 7 |  John Short | 1:05.778 | +12.024 | Pilot Point, TX | Yamaha YZ250F | |
| 8 |  Dylan Merriam | 1:05.717 | +12.494 | Corona, CA | Yamaha YZ250F | |
| 9 |  Lorenzo Locurcio | 1:05.806 | +13.701 |  | Honda CRF250R | |
| 10 |  Michael Leib | 1:05.397 | +14.425 | Menifee, CA | Yamaha YZ250F | |
| 11 |  Vann Martin | 1:06.522 | +19.991 | Houston, TX | Honda CRF250R | |
| 12 |  Chase Marquier | 1:06.759 | +21.798 | Newcastle, OK | Husqvarna FC 250 | |
| 13 |  Robbie Wageman | 1:07.405 | +24.269 | Newhall, CA | Yamaha YZ250F | |
| 14 |  Phil Nicoletti | 1:05.076 | +26.478 | Cochecton, NY | Suzuki RM-Z250 | |
| 15 |  Nick Gaines | 1:06.226 | +26.842 | Ringgold, GA | Yamaha YZ250F | |
| 16 |  Dakota Alix | 1:05.461 | +27.591 | Jay, VT | KTM 250 SX-F | |
| 17 |  Joshua Cartwright | 1:08.457 | +29.062 | Tallahassee, FL | Yamaha YZ250F | |
| 18 |  Travis Delnicki | 1:11.221 | +44.340 | Woodstock Valley, CT | Yamaha YZ250F | |
| 19 |  Zack Williams | 1:10.934 | +51.587 | Elko, MN | KTM 250 SX-F | |
| 20 |  Johnny Jelderda | 1:09.209 | +53.302 | Murrieta, CA | Yamaha YZ250F | |
| 21 |  RJ Wageman | DNF | Newhall, CA | Yamaha YZ250F | ||
| 22 |  Thomas Ramette | DNS | Guilherand  | Yamaha YZ250F |
