| Date | Time | Competition | Home |
| Away | Venue | TV / Att |
|
|---|
| August 2012 |
| 10/8/12 | 18:00 | F | Narbonne | 17 - 8 | Scarlets | Stade du Mas |
| More |
| 18/8/12 | 15:00 | F | Worcester Warriors | 22 - 7 | Scarlets | Sixways |
| More |
| 18/8/12 | 15:00 | F | Worcester Warriors | v | Scarlets | Sixways |
| More |
| 25/8/12 | 14:30 | F | Scarlets | 23 - 17 | London Welsh | Parc y Scarlets | 4,124 | More |
| 25/8/12 | 14:30 | F | Scarlets | v | London Welsh | Parc y Scarlets |
| Report |
| September 2012 |
| 1/9/12 | 18:30 | RDP12 | Scarlets | 45 - 20 | Leinster Rugby | Parc y Scarlets | 6,559 | Report |
| 7/9/12 | 19:35 | RDP12 | Glasgow Warriors | 13 - 18 | Scarlets | Scotstoun Stadium | 4,348 | Report |
| 15/9/12 | 15:00 | RDP12 | Connacht Rugby | 11 - 24 | Scarlets | The Sportsground | 4,074 | Report |
| 21/9/12 | 19:05 | RDP12 | Scarlets | 16 - 23 | Ospreys | Parc y Scarlets | 14,111 | Report |
| 29/9/12 | 19:05 | RDP12 | Benetton Treviso | 22 - 20 | Scarlets | Stadio Comunale di Monigo | 3,500 | Report |
| October 2012 |
| 5/10/12 | 19:05 | RDP12 | Scarlets | 24 - 13 | Newport Gwent Dragons | Parc y Scarlets | 7,863 | Report |
| 13/10/12 | 16:40 | HC-P5 | ASM Clermont Auvergne | 49 - 16 | Scarlets | Stade Marcel Michelin | 17,520 | Report |
| 20/10/12 | 13:35 | HC-P5 | Scarlets | 13 - 20 | Leinster Rugby | Parc y Scarlets | 9,555 | Report |
| 26/10/12 | 19:35 | RDP12 | Edinburgh Rugby | 28 - 29 | Scarlets | Murrayfield | 3,754 | Report |
| November 2012 |
| 3/11/12 | 18:30 | RDP12 | Scarlets | 22 - 13 | Zebre | Parc y Scarlets | 5,757 | Report |
| 10/11/12 | 15:00 | LVC-P2,P3 | Worcester Warriors | 34 - 18 | Scarlets | Sixways |
| Report |
| 17/11/12 | 18:30 | LVC-P2,P3 | Scarlets | 22 - 16 | Cardiff Blues | Parc y Scarlets | 6,469 | Report |
| 25/11/12 | 17:15 | RDP12 | Munster Rugby | 6 - 13 | Scarlets | Musgrave Park |
| Report |
| December 2012 |
| 2/12/12 | 16:00 | RDP12 | Scarlets | 12 - 19 | Ulster Rugby | Parc y Scarlets | 7,089 | Report |
| 8/12/12 | 13:35 | HC-P5 | Scarlets | 16 - 22 | Exeter Chiefs | Parc y Scarlets | 7,512 | Report |
| 15/12/12 | 15:40 | HC-P5 | Exeter Chiefs | 30 - 20 | Scarlets | Sandy Park Stadium | 9,258 | Report |
| 21/12/12 | 19:05 | RDP12 | Cardiff Blues | 6 - 9 | Scarlets | Cardiff Arms Park | 9,872 | Report |
| 26/12/12 | 17:30 | RDP12 | Ospreys | 32 - 3 | Scarlets | The Liberty Stadium | 19,443 | Report |
| January 2013 |
| 4/1/13 | 19:05 | RDP12 | Ulster Rugby | 47 - 17 | Scarlets | Ravenhill |
| Report |
| 12/1/13 | 18:00 | HC-P5 | Leinster Rugby | 33 - 14 | Scarlets | Royal Dublin Society | 18,200 | Report |
| 19/1/13 | 18:00 | HC-P5 | Scarlets | 0 - 29 | ASM Clermont Auvergne | Parc y Scarlets | 7,167 | Report |
| 26/1/13 | 15:00 | LVC-P2,P3 | Sale Sharks | 36 - 17 | Scarlets | Salford City Stadium | 3,108 | Report |
| February 2013 |
| 3/2/13 | 13:00 | LVC-P2,P3 | Scarlets | 40 - 19 | Leicester Tigers | Parc y Scarlets | 6,496 | Report |
| 8/2/13 | 19:30 | RDP12 | Scarlets | 25 - 15 | Connacht Rugby | Parc y Scarlets |
| Report |
| 16/2/13 | 18:30 | RDP12 | Scarlets | 18 - 10 | Munster Rugby | Parc y Scarlets | 7,124 | More |
| 23/2/13 | 19:45 | RDP12 | Leinster Rugby | 32 - 5 | Scarlets | Royal Dublin Society | 15,000 | Report |
| March 2013 |
| 1/3/13 | 19:05 | RDP12 | Scarlets | 14 - 13 | Edinburgh Rugby | Parc y Scarlets | 6,314 | Report |
| 22/3/13 | 19:00 | RDP12 | Zebre | 10 - 24 | Scarlets | Stadio XXV Aprile | 1,100 | Report |
| 30/3/13 | 14:30 | RDP12 | Newport Gwent Dragons | 20 - 28 | Scarlets | Millennium Stadium | 36,174 | Report |
| April 2013 |
| 12/4/13 | 19:05 | RDP12 | Scarlets | 29 - 6 | Glasgow Warriors | Parc y Scarlets | 6,901 | Report |
| 20/4/13 | 18:30 | RDP12 | Scarlets | 24 - 6 | Cardiff Blues | Parc y Scarlets | 10,426 | Report |
| May 2013 |
| 3/5/13 | 19:45 | RDP12 | Scarlets | 17 - 41 | Benetton Treviso | Parc y Scarlets | 9,129 | Report |
| 10/5/13 | 19:45 | RDP12 | Ulster Rugby | 28 - 17 | Scarlets | Ravenhill |
| Report |
|
