Cape Town - Mikko Korhonen produced a big finish to sign for a bogie-free round of 67 and take a one-shot lead after round two of the Shot Clock Masters.

The Finn is seeking his first European Tour win at Diamond Country Club near Vienna, Austria, in the ground breaking 72 hole strokeplay event in which every player in the field is on the clock for every shot, and he got to nine under par after birdieing three of his last four holes.

Korhonen and his playing partners Austin Connelly and Ashun Wu made their way around the course in four hours and 8 minutes on Friday afternoon - 40 minutes faster than the 2018 European Tour average for 18 holes played in three balls.

However the fastest round of the week so far came in the morning session, with Nico Geyger, Henric Sturehed and Kristian Krogh Johannessen recording the lowest time for the second day in succession, this time clocking up 18 holes in just three hours and 47 minutes - more than an hour faster than the season average.

England's Steve Webster and South African Justin Walters are one shot off the lead at eight-under par, while local hero Matthias Schwab, 2016 champion Wu, veteran Spaniard Miguel Ángel Jiménez and Dane Jeppe Pape Huldahl are a shot further back at seven under par.

Former Ryder Cup player Nicolas Colsaerts of Belgium, who expressed how much he has enjoyed the Shot Clock Masters concept, is then one of five players at six-under par.

The European Tour's official timing policy is implemented on every hole this week, with players given a 50 second allowance for a first to play approach shot (including a par three tee-shot), chip or putt and a 40 second allowance for a tee-shot on a par four or par five, or second or third to play approach shot, chip or putt.

Failure to make your shot in the allotted time leads to a one-shot penalty on the hole in question but players are allowed two 40 second time-extensions in any one round.

So far no penalties have been administered.

Round two scores:

135 M Korhonen (Fin) 68 67,

136 J Walters (RSA) 68 68, S Webster (Eng) 69 67,

137 J Huldahl (Den) 68 69, A Wu (Chn) 69 68, M Schwab (Aut) 69 68, M Jiménez (Esp) 67 70,

139 J Winther (Den) 69 70, N Colsaerts (Bel) 70 69, O Lengden (Swe) 66 73, C Ford (Eng) 72 67, R McGowan (Eng) 69 70,

140 J Hansen (Den) 72 68, E Johansen (Nor) 71 69, R Jacquelin (Fra) 71 69, P Hanson (Swe) 67 73, S Surry (Eng) 75 65, D Im (USA) 70 70, T Lewis (Eng) 69 71, J Arnoy (Nor) 72 68, L Gagli (Ita) 71 69, C Syme (Sco) 68 72, A Connelly (Can) 69 71, A Pavan (Ita) 70 70, N Cullen (Aus) 70 70, K Samooja (Fin) 70 70,

141 G Forrest (Sco) 71 70, O Farr (Wal) 69 72, O Stark (Swe) 69 72, D Papadatos (Aus) 76 65, D Huizing (Ned) 71 70, W Ormsby (Aus) 72 69, D Horsey (Eng) 70 71,

142 B Ritthammer (Ger) 70 72, S Kjeldsen (Den) 69 73, J Choi (Kor) 70 72, M Nixon (Eng) 73 69,

143 A Bland (Aus) 70 73, A Chesters (Eng) 71 72, J Thomson (Eng) 70 73, T Pulkkanen (Fin) 67 76,

144 L Nemecz (Aut) 73 71, F Aguilar (Chi) 71 73, P Khongwatmai (Tha) 71 73, H Sturehed (Swe) 73 71, M Foster (Eng) 69 75, L Slattery (Eng) 72 72, D Stewart (Sco) 72 72, S Khan (Eng) 72 72, C Bezuidenhout (RSA) 72 72, S Straka (Aut) 69 75, L Canter (Eng) 71 73, V Riu (Fra) 72 72,

145 K Johannessen (Nor) 71 74, S Heisele (Ger) 70 75, B Dredge (Wal) 74 71, J Lima (Por) 73 72, J Carlsson (Swe) 72 73, B Stow (Eng) 74 71, M Millar (Aus) 71 74, M Fraser (Aus) 73 72,

146 A Hansen (Den) 68 78, R Evans (Eng) 71 75, S Fernandez (Esp) 73 73, R McGee (Irl) 73 73, M Brier (Aut) 75 71, J Munro (Aus) 72 74, M Tullo (Chi) 72 74, C Prader (Aut) 74 72, J Norris (Aus) 71 75,

147 A Sandhu (Ind) 77 70, B Evans (Eng) 73 74, R Green (Aus) 75 72, M Lundberg (Swe) 69 78, B Neil (Sco) 68 79, J Geary (Nzl) 74 73, S Garcia Rodriguez (Esp) 74 73, P Oriol (Esp) 78 69, M Steinlechner (am) (Aut) 75 72,

148 G Bourdy (Fra) 76 72, C Blomstrand (Swe) 70 78, T Fisher Jnr (RSA) 75 73, Z Lombard (RSA) 72 76, M Kim (Kor) 70 78, K Reitan (am) (Nor) 70 78,

149 R McEvoy (Eng) 73 76, P Widegren (Swe) 73 76, R Cho (Kor) 73 76, T McKibbin (am) (Nir) 71 78,

150 G Moynihan (Irl) 71 79, E Goya (Arg) 73 77, M Baldwin (Eng) 75 75, M Schneider (Ger) 74 76, F Fritsch (Ger) 70 80,

151 G Stal (Fra) 72 79, C Pigem (Esp) 74 77, L Astl (Aut) 77 74, D Brooks (Eng) 74 77, N Geyger (Chi) 74 77, M Ford (Eng) 75 76, C Koepka (USA) 73 78,

152 C Mivis (Bel) 77 75, F Laporta (Ita) 75 77, L Johnston (Sco) 77 75, M Armitage (Eng) 75 77,

153 C Hanson (Eng) 72 81, K Koivu (Fin) 75 78,

154 B Reiter (Aut) 80 74, B Neumayer (Aut) 76 78,

155 J Edfors (Swe) 79 76, Ó Serna (Mex) 76 79,

157 P Gal (Cze) 78 79,

158 J Steiner (Aut) 78 80, P Shields (Sco) 79 79,

162 R Gruber (Aut) 81 81, P Dedek (Cze) 75 87,

164 J Singh (Ind) 82 82, 

** P Angles (Esp) 74 RT, S Kapur (Ind) 79 RT, N Bertasio (Ita) 76 WD