East London - Argentine youngster Emiliano Grillo produced his lowest score on the European Tour on Saturday, a nine-under-par 62 earning a two-shot lead after the third round of the Africa Open.
The 21-year-old, second at the Dubai Desert Classic a fortnight ago, carried on his good form by reeling off nine birdies to finish on 20-under 193, two ahead of Briton Oliver Fisher (66) at the East London Golf Club.
Richard Bland (64) of Britain, seeking a first tour win at the 319th attempt, was a further two shots back along with South African Thomas Aiken (66) and overnight leader John Hahn of the United States (71).
Birdies at the third, fourth, sixth, seventh and eighth took Grillo to the turn in 31 and he also picked up strokes on the 12th, 13th, 15th and 16th as he recorded the best round of the day.
Fisher, winner of the 2011 Czech Open, stayed in touch after a storming finish that included two birdies and an eagle in his final four holes.
Scores (RSA unless otherwise specified):
193 - Emiliano Grillo (ARG) 68 63 62
195 - Oliver Fisher (ENG) 66 63 66
197 - Richard Bland (ENG) 64 69 64, Thomas Aiken 66 65 66, John Hahn (USA) 65 61 71
199 - Ulrich van den Berg 66 68 65, Fabrizio Zanotti (PAR) 65 66 68
200 - Darren Fichardt 66 67 67, Jens Dantorp (SWE) 69 63 68, Lucas Bjerregaard (DEN) 64 67 69, David Horsey (ENG) 66 64 70
201 - Jaco Van Zyl 69 65 67, Jean Hugo 68 66 67, Ricardo Santos (POR) 62 66 73
202 - Justin Walters 66 69 67, Daniel Im (USA) 69 67 66, Adrian Otaegui (ESP) 69 65 68, Gaganjeet Bhullar (IND) 67 67 68, Jared Harvey 67 69 66,Garth Mulroy 64 68 70, Stuart Manley (WAL) 68 69 65
203 - Lee Slattery (ENG) 67 68 68, Morten Orum Madsen (DEN) 72 63 68, Wade Ormsby(AUS) 70 64 69, Damien McGrane (IRL) 67 69 67, Jose-Filipe Lima (POR) 67 67 69,Ruan de Smidt 68 66 69, Jbe' Kruger 67 69 67, James Kamte 69 64 70, Chris Doak (SCO) 69 67 67, Oliver Bekker 70 67 66,Mark Williams 67 65 71, Keith Horne 68 69 66, Mark Tullo (CHI) 66 71 66
204 - Dawie Van der Walt 68 66 70, Victor Riu (FRA) 66 67 71, Adam Gee (ENG) 66 65 73
205 - Rhys Davies (WAL) 64 71 70, Tjaart van der Walt 67 68 70, Danie van Tonder 70 66 69, Matthew Nixon (ENG) 66 70 69, Roope Kakko (FIN) 69 67 69,Simon Wakefield (ENG) 66 67 72, Robert Dinwiddie (ENG) 69 68 68
206 - Mikko Korhonen (FIN) 72 63 71, David Drysdale (SCO) 65 70 71, Jacques Blaauw 70 65 71, PH McIntyre 69 67 70, Michael Hoey (NIR) 68 68 70,Daniel Brooks (ENG) 70 67 69, JJ Senekal 66 71 69, Gregory Bourdy (FRA) 65 72 69, Jamie McLeary (SCO) 69 68 69, Jaco Ahlers 69 68 69
207 - James Morrison (ENG) 66 69 72, Edouard Dubois (FRA) 69 67 71, Sihwan Kim (KOR) 68 68 71, Neil Schietekat 69 68 70, Patrik Sjoland (SWE) 66 65 76,Sam Walker (ENG) 67 70 70, Charl Coetzee 71 66 70
208 - Brandon Stone 66 71 71, Adilson Da Silva (BRA) 68 69 71
209 - Jason Knutzon (USA) 71 66 72
210 - Jorge Campillo (ESP) 70 65 75
212 - Adrien Saddier (FRA) 70 66 76, Heinrich Bruiners 66 71 75