Stadium: Clay Court 8 Round: 25 Ground: Clay
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/25 07:30 | 하리슨, 캐서린 v Ball, Julie | 6-3,6-0 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/22 13:55 | 포토크니크, 니나 v 하리슨, 캐서린 | 7-5,7-5 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/21 09:30 | 이, 은혜 v 하리슨, 캐서린 | 1-6,6-2,6-7 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/19 08:00 | 하리슨, 캐서린 v Ilowska, Caroline | 6-3,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/18 10:00 | 하리슨, 캐서린 v 나이토, 유키 | 6-4,2-6,6-4 |
| Wesley Chapel, Singles Qualifying W-WITF-USA-03A | 2018/01/22 14:30 | 오수이그위, 와이트니 v 하리슨, 캐서린 | 6-2,6-4 |
| Wesley Chapel, Singles Qualifying W-WITF-USA-03A | 2018/01/21 16:30 | 하리슨, 캐서린 v 수, 칭 원 | 3-6,6-1,6-2 |
| ITF Women Orlando Qual | 2018/01/15 15:00 | 하리슨, 캐서린 v 페르난데즈, 레이라 안니 | 4-6,6-7 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/26 06:00 | 나가타, 안리 v Stubbe, Kim | 6-2,4-6,1-6 |