| UK Tennis Series | 08/09 14:30 | 1 | Willis, Marcus v 호드킨, 신 | 6-4,6-4 | |
| UK Tennis Series | 08/08 14:30 | - | Willis, Marcus v 마르틴, 토비 | 6-7,7-5,10-5 | |
| UK Tennis Series | 08/07 09:00 | 1 | 파리스, 조수아 v Willis, Marcus | 7-6,5-7,10-6 | |
| UK Tennis Series | 08/06 10:15 | 1 | 하리스, 빌리 v Willis, Marcus | 6-4,6-7,10-8 | |
| UK Tennis Series | 08/05 16:00 | 1 | Willis, Marcus v 호드킨, 신 | 6-4,6-4 | |
| UK Tennis Series | 08/04 09:00 | 1 | 파텐, 헨리 v Willis, Marcus | 6-4,7-6 | |
| UK Tennis Series | 08/03 14:15 | 1 | 페니스톤, 리안 v Willis, Marcus | 6-3,7-5 | |
| UK Tennis Series | 07/12 15:30 | 1 | 캔터, 알렉시스 v Willis, Marcus | 6-3,7-6 | |
| UK Tennis Series | 07/11 14:20 | - | Willis, Marcus v 준, 알렉산더 | 6-7,6-3,10-2 | |
| UK Tennis Series | 07/10 14:15 | 1 | 핸즈, 톰 v Willis, Marcus | Retired | |
| UK Tennis Series | 07/09 09:00 | - | 글라스풀, 로이드 v Willis, Marcus | 6-4,6-2 | |
| UK Tennis Series | 07/08 14:15 | - | 하리스, 빌리 v Willis, Marcus | 6-1,7-6 | |
| UK Tennis Series | 07/07 11:30 | - | 마르틴, 토비 v Willis, Marcus | 3-6,3-6 | |
| UK Tennis Series | 07/06 16:30 | - | 존슨, 루크 v Willis, Marcus | 6-4,7-6 | |
| Boodles Challenge | 06/30 11:30 | 1 | [238] Willis, Marcus v 브로아디, 리암 [175] | 6-4,3-6,8-10 | |
| Boodles Challenge | 06/29 11:30 | 1 | [37] 라모스 비놀라스, 알베르트 v Willis, Marcus [238] | 4-6,6-3,11-9 | |
| Boodles Challenge | 06/27 16:00 | 1 | [238] Willis, Marcus v 자지리, 말레크 [61] | 4-6,7-6,6-10 | |
| Challenger Nottingham Qual | 06/09 15:55 | 45 | [217] Willis, Marcus v 클레인, 브리단 [464] | 1-6,3-6 | |
| Challenger Leon Qual | 04/22 19:20 | 46 | [209] Willis, Marcus v 에스코발, 곤잘로 [371] | 4-6,3-6 | |
| Challenger Leon Qual | 04/21 23:00 | 45 | de Alba, Rafael v Willis, Marcus | 4-6,3-6 | |
| ITF Great Britain F3 | 02/14 12:55 | 26 | 핀델-하우킨스, 젝 v Willis, Marcus | 6-7,7-6,6-1 | |
| ITF Great Britain F3 | 02/13 13:05 | 25 | 보셀, 아드리엔 v Willis, Marcus | 7-5,5-7,2-6 | |
| ITF Great Britain F2 | 02/07 13:55 | 25 | Willis, Marcus v Haim, Matthias | 4-6,4-6 | |
| ITF Great Britain F1 | 02/02 10:00 | 27 | Willis, Marcus v 비올라, 마테오 | 6-7,3-6 | |
| ITF Great Britain F1 | 02/01 12:00 | 26 | 데세인, 니엘스 v Willis, Marcus | 3-6,5-7 | |
| ITF Great Britain F1 | 01/31 16:35 | 25 | 드레이퍼, 잭 v Willis, Marcus | 3-6,6-7 | |
| Czech Republic F11, Singles | 11/21 09:00 | 25 | 라오렌트, 야나이스 v Willis, Marcus | 7-5,7-6 | |
| Knoxville, USA, Qualifying | 11/06 18:00 | 46 | [358] Corrie, Edward v Willis, Marcus [224] | 7-6,7-5 | |
| Knoxville, USA, Qualifying | 11/05 21:25 | 45 | Willis, Marcus v 토울리아토스, 프레스톤 | 6-1,7-5 | |
| Challenger Las Vegas Qual | 10/14 20:00 | 45 | Samuelsson, Eric v Willis, Marcus | Retired |