[16] San Marcos De Arica 1-0 Union San Felipe [4] 2018-08-12 19:00
Stadium: Estadio Carlos Dittborn Round: 19
Head to Head
| Chile Primera B | 2018/04/07 19:00 | Union San Felipe v San Marcos De Arica | D | 0-0 |
| Chile Primera B | 2017/09/24 20:00 | San Marcos De Arica v Union San Felipe | D | 0-0 |
| Chile Primera B | 2017/04/15 20:00 | Union San Felipe v San Marcos De Arica | L | 2-0 |
| Chile Primera B | 2016/09/11 20:00 | San Marcos De Arica v Union San Felipe | W | 1-0 |
Home History
| Chile Primera B | 2018/08/05 16:00 | Cobreloa v San Marcos De Arica | L | 4-0 |
| Chile Primera B | 2018/07/29 20:00 | San Marcos De Arica v Magallanes | D | 1-1 |
| Chile Primera B | 2018/07/22 20:00 | Melipilla v San Marcos De Arica | D | 2-2 |
| Chile Cup | 2018/07/01 20:00 | San Marcos De Arica v Cobreloa | L | 0-1 |
| Chile Cup | 2018/06/23 20:30 | Cobreloa v San Marcos De Arica | L | 6-0 |
| Chile Cup | 2018/06/17 16:00 | Deportes Iquique v San Marcos De Arica | L | 3-1 |
| Chile Cup | 2018/06/10 20:00 | San Marcos De Arica v Deportes Iquique | W | 4-1 |
| Chile Primera B | 2018/06/03 20:00 | San Marcos De Arica v Coquimbo Unido | L | 0-2 |
Away History
| Chile Primera B | 2018/08/04 19:30 | Union San Felipe v La Serena | W | 1-0 |
| Chile Primera B | 2018/07/29 19:30 | Deportes Valdivia v Union San Felipe | W | 0-2 |
| Chile Primera B | 2018/07/21 19:30 | Union San Felipe v Puerto Montt | W | 2-0 |
| Chile Primera B | 2018/06/02 19:30 | Union San Felipe v Rangers de Talca | W | 2-0 |
| Chile Primera B | 2018/05/26 22:00 | Puerto Montt v Union San Felipe | W | 1-3 |
| Chile Primera B | 2018/05/19 19:30 | Union San Felipe v Deportes Copiapo | D | 0-0 |
| Chile Primera B | 2018/05/12 22:00 | Coquimbo Unido v Union San Felipe | L | 1-0 |
| Chile Cup | 2018/05/05 18:30 | Union San Felipe v Colchagua CD | L | 1-2 |