| Columbus II, USA | 11/22 22:40 | 25 | Pollanen, Herkko v 맥날리, 존 | 1-6,3-6 | |
| Challenger Champaign Qual | 11/13 16:00 | 46 | Pollanen, Herkko v Cox, Daniel | 3-6,4-6 | |
| Challenger Champaign Qual | 11/12 19:00 | 45 | 부딕, 부크 v Pollanen, Herkko | 2-6,6-4,1-6 | |
| 콜럼버스, USA, 예선 | 09/18 14:00 | 46 | Pollanen, Herkko v 힐트지크, 자레드 | 4-6,4-6 | |
| 콜럼버스, USA, 예선 | 09/17 14:00 | 45 | 우스펜스키, 데니스 v Pollanen, Herkko | 4-6,1-6 | |
| ITF Finland F3 | 08/16 22:00 | 26 | Pollanen, Herkko v 본 마소우, 게오르지 | 3-6,6-1,6-7 | |
| ITF Finland F3 | 08/15 22:00 | 25 | 골크, 델프 v Pollanen, Herkko | 4-6,3-6 | |
| ITF Finland F3 Qual | 08/13 22:00 | 54 | 골크, 델프 v Pollanen, Herkko | 3-6,1-6 | |
| ITF Finland F3 Qual | 08/12 22:00 | 54 | 사텔라, 리비 v Pollanen, Herkko | 3-6,1-6 | |
| ITF Finland F2 Qual | 08/06 10:00 | 54 | Pollanen, Herkko v Wennakoski, Max | 4-6,7-5,2-6 | |
| ITF Finland F1 | 08/03 10:50 | 26 | 키아트코우스키, 다이손 v Pollanen, Herkko | 6-3,6-2 | |
| ITF Finland F1 | 08/02 09:40 | 25 | 바를ㄹ로스, 마누엘 v Pollanen, Herkko | 2-6,1-6 | |
| ITF Estonia F1 | 07/26 22:00 | 26 | 아레체, 니콜라스 알베르토 v Pollanen, Herkko | 1-6,6-1,6-1 | |
| ITF Estonia F1 | 07/24 22:00 | 25 | Pollanen, Herkko v 사바닌, 얀 | 6-2,7-5 | |
| ITF Estonia F1 | 07/23 22:00 | 44 | Pollanen, Herkko v 브루나, 니콜라스 | 6-2,6-3 | |
| Challenger Tampere Qual | 07/17 09:50 | 54 | Pollanen, Herkko v 후르카즈, 후베르트 | 1-6,3-6 | |
| Challenger Tampere Qual | 07/16 13:00 | 46 | 소델룬드, 칼 v Pollanen, Herkko | 5-7,4-6 | |
| Challenger Tampere Qual | 07/16 09:00 | 45 | Pollanen, Herkko v 탐, 크리스티안 | 3-6,6-3,6-4 | |
| 콜럼버스, USA, 예선 | 09/20 16:10 | 44 | O'Brien, Dean v Pollanen, Herkko | 6-3,6-4 | |
| ITF Finland F3 | 08/18 09:30 | 25 | Pollanen, Herkko v Lama, Gonzalo | 0-6,1-6 | |
| ITF Finland F2 Qual | 08/08 13:00 | 54 | Pollanen, Herkko v 루드, 카스퍼 | 1-6,2-6 | |
| ITF Finland F1 | 08/04 11:50 | 25 | Pollanen, Herkko v 헬리오바라, 하리 | 1-6,6-2,5-7 | |
| ITF Estonia F1 | 07/28 11:40 | 25 | Libietis, Mikelis v Pollanen, Herkko | 6-4,6-0 | |
| ITF Estonia F1 | 07/26 12:00 | - | Pollanen, Herkko v 만슨, 마르쿠스 | 6-3,6-3 | |
| ITF Estonia F1 | 07/26 07:00 | - | Pollanen, Herkko v Kosonen, Mika | 6-2,6-4 | |
| ITF USA F20 | 06/30 16:15 | - | Pollanen, Herkko v 카미닌, 드미트로 | 6-7,1-6 | |
| ITF USA F18 | 06/23 22:00 | - | 고메즈, 에밀리오 v Pollanen, Herkko | 6-4,6-3 | |
| ITF USA F17 | 06/16 17:00 | - | 파사, 나단 v Pollanen, Herkko | 6-1,6-3 | |
| ITF USA F1 | 01/08 16:00 | - | Pollanen, Herkko v 에리크슨, 마르쿠스 | 3-6,4-6 | |
| ITF USA F1 Qual | 01/05 16:30 | - | 나카가와, 나오키 v Pollanen, Herkko | 6-3,5-7,4-6 |