| ITF M15日之出町 | 03/10 03:00 | 62 | Ryusuke Horiuchi v 马蒂亚斯·索斯科姆 | 3-6,6-3,5-10 | |
| ITF M15安塔利亚 | 02/27 06:30 | 62 | 费德里科•坎帕纳 v Ryusuke Horiuchi | 6-3,4-6,10-6 | |
| ITF M15安塔利亚 | 02/25 07:00 | 62 | Runze Yang v Ryusuke Horiuchi | 1-6,0-6 | |
| ITF M25安塔利亚 | 02/19 11:45 | 62 | Federico Bove v Ryusuke Horiuchi | 7-6,6-2 | |
| ITF M25安塔利亚 | 02/18 07:00 | 62 | Ryusuke Horiuchi v Gabriel Wien | 6-2,6-1 | |
| ITF M25安塔利亚 | 02/12 08:00 | 62 | Nazar Oliynykov v Ryusuke Horiuchi | 6-2,6-3 | |
| ITF M25安塔利亚 | 02/11 07:00 | 62 | Ryusuke Horiuchi v Radovan Michalik | 7-6,6-7,10-7 | |
| ITF M25安塔利亚 | 02/04 07:00 | 62 | Ryusuke Horiuchi v 艾文•拉姆斯登 | 3-6,6-7 | |
| ITF M25安塔利亚 | 01/29 12:55 | 62 | Anthony Genov v Ryusuke Horiuchi | 6-4,6-4 | |
| ITF M25安塔利亚 | 01/28 07:00 | 62 | Ryusuke Horiuchi v Borys Zgola | 6-2,6-2 | |
| ITF M15安塔利亚 | 01/22 07:00 | 62 | Ryusuke Horiuchi v 伊万·塞格耶夫 | 3-6,4-6 | |
| ITF M15柳川 | 12/25 03:00 | 54 | Taketo Takamisawa v Ryusuke Horiuchi | 6-1,6-1 | |
| ITF M15柳川 | 12/18 03:00 | 54 | Yuichiro Inui v Ryusuke Horiuchi | 7-5,6-3 | |
| ITF M15莫纳斯提尔 | 12/06 10:40 | 25 | Adit Sinha v Ryusuke Horiuchi | 6-0,6-0 | |
| ITF M25莫纳斯提尔 | 11/26 08:30 | 62 | Federico Bove v Ryusuke Horiuchi | 6-2,6-3 | |
| ITF M15莫纳斯提尔 | 11/20 09:30 | 54 | Omar Brigida v Ryusuke Horiuchi | 6-3,6-1 | |
| ITF M25莫纳斯提尔 | 11/13 08:00 | 62 | 菲利普•亨宁 v Ryusuke Horiuchi | 6-3,6-2 | |
| ITF M25莫纳斯提尔 | 11/12 08:00 | 62 | Ryusuke Horiuchi v 莱昂 福美拉 | 6-4,7-6 | |
| ITF M25莫纳斯提尔 | 11/05 10:30 | 62 | Ryusuke Horiuchi v Luca Matteo Sobbe | 1-6,1-6 | |
| ITF M15莫纳斯提尔 | 10/29 09:30 | 62 | Lorenzo Lorusso v Ryusuke Horiuchi | 5-7,6-2,10-6 | |
| ITF M15莫纳斯提尔 | 10/15 09:30 | 62 | Ryusuke Horiuchi v Loan Lestir | 3-6,2-6 | |
| ITF M25高崎 | 09/18 00:55 | 19 | 里奥•维通蒂安 v Ryusuke Horiuchi | 6-2,7-6 | |
| ITF M25高崎 | 09/17 01:00 | 54 | Maximus Kawabata v Ryusuke Horiuchi | 1-6,0-6 | |
| ITF M25札幌 | 09/11 02:30 | 54 | Ryusuke Horiuchi v Yusuke Kusuhara | 3-6,6-3,6-10 | |
| ITF M25札幌 | 09/04 03:35 | 54 | Ryusuke Horiuchi v Seiya Nakanishi | 6-4,2-6,10-12 | |
| ITF M25札幌 | 09/03 03:00 | 54 | Ryusuke Horiuchi v 中村健太 | 6-3,6-1 | |
| ITF M25博尔扎诺 | 07/31 13:00 | 25 | 胡安•包蒂斯塔•奥特吉 v Ryusuke Horiuchi | 5-7,6-2,6-0 | |
| ITF M15佩鲁贾 | 07/23 09:30 | 44 | Ryusuke Horiuchi v 乔治欧•里卡 | 0-6,4-6 | |
| ITF M15古比奥 | 07/16 10:00 | 54 | Ryusuke Horiuchi v 丹尼尔•巴格诺里尼 | 0-6,1-6 | |
| ITF M25帕多瓦 | 07/09 10:55 | 54 | Leonardo Rossi v Ryusuke Horiuchi | 6-2,6-2 |