Monday marks the second day of 2018 MotoGP testing at Sepang in Malaysia.

All 23 confirmed race riders are present, plus some test riders, while Yonny Hernandez has been called-up by Tech 3 as they continue the search to replace Jonas Folger.

Rookie Thomas Luthi is making his Marc VDS Honda debut after missing the end of the 2017 season due to injuries at October's Malaysian Moto2 race weekend.

Kohta Nozane and Katsuyuki Nakasuga are the Yamaha Test Riders listed as present, but appear to be alternating between three different bikes.

Testing began at 10am, but a damp track kept all riders in the pits until 11am. The action concludes at 6pm.

1. ^1 Andrea Dovizioso ITA Ducati Team (GP18) 1m 59.732s [Lap 20/21]
2. ˅1 Valentino Rossi ITA Movistar Yamaha (YZR-M1) 1m 59.766s +0.034s [12/22]
3. ^13 Marc Marquez ESP Repsol Honda (RC213V) 1m 59.988s +0.256s [24/34]
4. ^6 Alex Rins ESP Suzuki Ecstar (GSX-RR)* 2m 0.042s +0.310s [25/31]
5. ˅2 Cal Crutchlow GBR LCR Honda (RC213V) 2m 0.158s +0.426s [11/31]
6. ^3 Dani Pedrosa ESP Repsol Honda (RC213V) 2m 0.208s +0.476s [24/32]
7. ˅3 Pol Espargaro ESP Red Bull KTM Factory (RC16) 2m 0.262s +0.530s [7/21]
8. ˅3 Jack Miller AUS Pramac Ducati (GP17) 2m 0.275s +0.543s [4/21]
9. ˅3 Tito Rabat ESP Reale Avintia (GP17) 2m 0.506s +0.774s [11/28]
10. ˅3 Maverick Viñales ESP Movistar Yamaha (YZR-M1) 2m 0.513s +0.781s [23/38]
11. ˅3 Danilo Petrucci ITA Pramac Ducati (GP18) 2m 0.541s +0.809s [10/26]
12. ^3 Andrea Iannone ITA Suzuki Ecstar (GSX-RR) 2m 0.552s +0.820s [22/25]
13. ˅2 Jorge Lorenzo ESP Ducati Team (GP18) 2m 0.732s +1.000s [10/19]
14. ˅2 Johann Zarco FRA Monster Yamaha Tech3 (YZR-M1) 2m 0.763s +1.031s [11/26]
15. ˅2 Aleix Espargaro ESP Factory Aprilia Gresini (RS-GP) 2m 0.902s +1.170s [16/21]
16. ^2 Mika Kallio FIN Red Bull KTM Factory (RC16) 2m 0.938s +1.206s [23/28]
17. ˅3 Takaaki Nakagami GBR LCR Honda (RC213V) 2m 0.952s +1.220s [19/31]
18. ˅1 Sylvain Guintoli FRA Suzuki Ecstar (GSX-RR) 2m 1.392s +1.660s [5/25]
19. = Alvaro Bautista ESP Angel Nieto Team (GP17) 2m 1.657s +1.925s [11/21]
20. = Scott Redding GBR Factory Aprilia Gresini (RS-GP) 2m 1.667s +1.935s [16/22]
21. = Franco Morbidelli ESP EG 0,0 Marc VDS (RC213V)* 2m 1.682s +1.950s [12/19]
22. = Bradley Smith GBR Red Bull KTM Factory (RC16) 2m 1.725s +1.993s [18/18]
23. = Yamaha Test 3 JPN Yamaha Test Rider (YZR-M1) 2m 2.079s +2.347s [15/22]
24. = Tom Luthi SWI EG 0,0 Marc VDS (RC213V)* 2m 2.085s +2.353s [17/20]
25. = Karel Abraham CZE Angel Nieto Team (GP16) 2m 2.101s +2.369s [8/24]
26. = Yonny Hernandez COL Monster Yamaha Tech3 (YZR-M1) 2m 2.102s +2.370s [13/20]
27. = Xavier Simeon ESP Reale Avintia (GP16)* 2m 2.139s +2.407s [20/23]
28. = Yamaha Test 2 JPN Yamaha Test Rider (YZR-M1) 2m 3.062s +3.330s [14/20]
* Rookie

Key:
˄X Rider has X higher positions than end of previous hour.
= Rider has same position as end of previous hour.
˅X Rider has X lower positions than end of previous hour.

Blue = Factory Team.
Red = Satellite Team.

Fastest Day 1 time:
<Dani Pedrosa SPA Honda 1m 59.427s

Official Sepang MotoGP records:
Best lap:
Jorge Lorenzo SPA Yamaha 2m 0.606s (2015)
Fastest race lap:
Dani Pedrosa SPA Honda 1m 59.053s (2015)

Unofficial Sepang MotoGP record:
Marc Marquez SPA Honda 1m 58.867s (2015 testing)
 

By Peter McLaren