| 馬名 | 父 | 母 | 生年 |
|---|---|---|---|
| Rotknee | Runhappy | In Spite of Mama | 2019 |
| Happy Soul | Runhappy | Cowgirl Lucky | 2019 |
| Luvahappyending | Runhappy | Frosted Snow | 2019 |
| Solicitation | Runhappy | Wilshewed | 2020 |
| Gamerun | Runhappy | Kelwynne | 2020 |
| シゲルソロソロ | Runhappy | Distinguishable | 2020 |
| Happy Am I | Runhappy | Cat Dance | 2020 |
| Happy Time | Runhappy | Deadline | 2020 |
| Neutralize | Runhappy | Spank | 2020 |
| Somebody's Problem | Runhappy | Firsthand Report | 2020 |
| Runaholic | Runhappy | Workaholic | 2020 |
| Jay | Runhappy | I'm Always Hopeful | 2020 |
| ハカイシン | Runhappy | Elarose | 2020 |
| Happy Is a Choice | Runhappy | Fast Alexia | 2020 |
| Wellareyouhappynow | Runhappy | フロイライン | 2021 |
| Fast Motion | Runhappy | Cookie Girl | 2021 |
| Nutella Fella | Runhappy | Krissy's Candy | 2021 |
| Tanya Showers | Runhappy | Miss Mary Pat | 2021 |
| Hard to Forget | Runhappy | Final Adventure | 2021 |
| Guanare | Runhappy | キャストインシルバー | 2021 |