Kieran Craig Todd (20) pleaded guilty in Rockingham Magistrates Court on Tuesday to driving in excess of 45km/h over the speed limit.
The court was told a radar speed detector caught Todd travelling at 146km/h on Parmelia Avenue, which has a speed limit of 50km/h.
Police prosecutor Neville Palmer said it was ‘astounding’ the speed Todd was travelling.
‘He was going so fast in a built-up area,’ he said.
‘He hasn’t been allowed to drive since by his dad.’
Magistrate Denis Temby said it was ‘fortunate’ the extreme speeding did not result in an accident.
‘The speed was 200 per cent over the limit and that is no regard for road users,’ he said.
‘This should be a major lesson because it could have been worse.’
Mr Temby took into account Todd’s clean record and early guilty plea.
Todd was also fined $1200 and ordered to pay $150 in court costs.
Meanwhile, Shaun Richard Smith (20) pleaded guilty to driving in excess of 45km/h over the speed limit.
The court was told a radar speed detector caught the Hillman resident travelling at 87km/h in a 40/kmh school zone about 8.45am on June 6.
He was driving on Sixty Eight Road, near Eighty Road, in Baldivis, which is normally zoned 70km/h.
Magistrate Temby said the ‘potential for harm is great’ when drivers speed through school zones.
‘It is important to be attentive of the speed zones,’ he said.
Smith was disqualified from driving for 12 months, fined $1000 and ordered to pay $150 in court costs.