Sixth and final stage was mostly flat, finishing off along the Muscat corniche
Columbian Miguel Moreno clinched victory on stage five of the Tour of Oman on Saturday, as fellow Astana rider, Kazakh Alexey Lutsenko took the lead in the overall standings.
Moreno traversed the rugged 152 kilometre (95 mile) stage in under three hours and 45 minutes, with teammate Lutsenko clocking in at the same time atop Oman's Green Mountain.
Spaniard Jesus Lopez (Cofidis) was third, 12 seconds back.
Sunday's sixth and final stage is a mostly flat 135.5km (84 mile) route, but with two climbs, finishing off along the Muscat corniche.
Stage five results: 1. Miguel Moreno (COL/Astana) 3hrs, 43min, 58sec, 2. Alexey Lutsenko (KAZ/Astana) same time, 3. Jesus Lopez (ESP/Cofidis) at 12sec, 4. Gorka Insausti (ESP/Bahrain-Merida) 15, 5. Nathan Haas (AUS/Katusha) 22, 6. Peter Stetina (USA/Trek-Segafredo) 25, 7. Daniel Pearson (GBR/Aqua Blue) 33, 8. Dries Devenyns (BEL/Quick-Step) 43, 9. Nicolas Roche (IRL/BMC) 47, 10. Rui Costa (POR/Emirates) 49.
Overall standings: 1. Alexey Lutsenko (KAZ/Astana) 19hrs, 38min, 21sec, 2. Miguel Moreno (COL/Astana) at 11sec, 3. Gorka Insausti (ESP/Bahrain-Merida) 28, 4. Jesus Lopez (ESP/Cofidis) 30, 5. Nathan Haas (AUS/Katusha) 32, 6. Dries Devenyns (BEL/Quick-Step) 1:05, 7. Daniel Garcia (ESP/Cofidis) 1:14, 8. Odd Eiking (NOR/Wanty) 1:24, 9. Merhawi Ghebremedhin (ERI/Dimension Data) 1:29, 10. Rui Costa (POR/Emirates) 1:37.