Matt Walters won the Prostock rounds at Sydney Motorsport Park. Image: Andrew Gosling/TBG Sport.

An action-packed support category line-up is complete following rounds four and five of the Australian Superbike Championship at Sydney Motorsport Park this weekend.

Matt Walters made it two round wins from two in the Australian Prostock Championship for the weekend aboard his Kawasaki Connection ZX-10R.

On Saturday he won ahead of Dustin Goldsmith and Sean Condon, while Sunday saw Condon and Ben Burke complete the all-Kawasaki podium.

Round four of the combined Moto3/125cc GP ranks saw Lawson Walters race to the win, from Lachlan Kavney and Tayla Relph. The fifth round was again Walters from Max Croker and Relph.

In the 250 Production ranks it was defending champion Luke Burgess who swept the weekend. On Saturday he won ahead of Tom Bramich and Brendon Demmery, before final race winner Demmery stepped up to second on Sunday. Jack Baker was third.

Both Women’s rounds were topped by local favourite Sophie Lovett from Jessica Derrin. Round four featured Di Jones in third, before Miriam White claimed a podium slot in round five.

The MRRDA Juniors made their return to NSW in Sydney alongside the ASBK, with Nic Liminton winning the 150ccs from Lachlan Epis and Danielle Foot, while Jacob Whitehouse led the 80ccs over Lawson Walters and Jacob Street.

2013 Australian Superbike Championship
Round five – Sydney Motorsport Park, NSW

Prostock championship standings:
1. Matt WALTERS 274
2. Ben NICOLSON 170
3. Dustin GOLDSMITH 167
4. Ben BURKE 153
5. Mathew HARDING 145
6. Sean CONDON 135
7. Angus REEKIE 128
8. Phil LOVETT 123
9. Adam CHRISTIE 123
10. Nathan HOUTERMAN 113

Moto3/125GP championship standings:
1. Lawson WALTERS 198
2. Lachlan KAVNEY 143
3. Tayla RELPH 139
4. Max CROKER 91
5. Callum BARKER 63
6. Benjamin LEONARD 48
7. Nathan SMITH 45
8. Matt BARTON 37

250 Production championship standings:
1. Brandon DEMMERY 196
2. Luke BURGESS 194
3. Tom BRAMICH 162
4. Daniel MUTTON 144
5. Jack BAKER 137
6. Sophie LOVETT 136
7. Mitch KAVNEY 128
8. Duncan GORDON 115
9. Brian BEZZINA 115
10. Miriam WHITE 98

250 Production Women’s championship standings:
1. Sophie LOVETT 220
2. Miriam WHITE 169
3. Jessica DERRIN 122
4. Genevieve STUMPF 86
5. Di JONES 73

MRRDA Junior 150cc championship standings:
1. Nic LIMINTON 515
2. Lachlan EPIS 352
3. Danielle FOOT 268
4. Tom DODDS 156
5. Drew SELLS 155
6. Luke DAVIES 149
7. Daniel WARNER 110
8. Josh MERCIECA 105
9. Mitch SIMPSON 86
10. Iilish ROSS 75

MRRDA Junior 80cc championship standings:
1. Jacob WHITEHOUSE 462
2. Lawson WALTERS 428
3. Jock MANSER 394
4. Jacob STREET 320
5. Tayla STREET 304
6. Shelby WALTERS 253
7. Ted COLLINS 183
8. Callum ALDERSON 161
9. Aaron FULTON 42

Click here for detailed results