最初の２０戦は５戦ごとにレース条件が変わることを考慮し、
５戦ごとに各馬に1or2、3or4、5or6、7or8、9or10が来るような以下の枠順パターンを用います。
出走馬にはこのA〜Jの枠パターンのいずれかが割り当てられます。
・枠パターン１（大逃げ馬２頭以上or大逃げなしの場合）
| 枠パターン | A | B | C | D | E | F | G | H | I | J |
| 1R | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2R | 7 | 6 | 5 | 10 | 9 | 1 | 4 | 2 | 3 | 8 |
| 3R | 4 | 10 | 8 | 1 | 2 | 9 | 5 | 6 | 7 | 3 |
| 4R | 10 | 3 | 9 | 5 | 8 | 7 | 1 | 4 | 6 | 2 |
| 5R | 5 | 8 | 2 | 7 | 3 | 4 | 10 | 9 | 1 | 6 |
| 6R | 3 | 9 | 7 | 8 | 4 | 2 | 6 | 5 | 10 | 1 |
| 7R | 8 | 1 | 4 | 6 | 10 | 3 | 9 | 7 | 2 | 5 |
| 8R | 9 | 4 | 10 | 2 | 6 | 8 | 3 | 1 | 5 | 7 |
| 9R | 6 | 5 | 1 | 9 | 7 | 10 | 2 | 3 | 8 | 4 |
| 10R | 2 | 7 | 6 | 3 | 1 | 5 | 8 | 10 | 4 | 9 |
| 11R | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| 12R | 8 | 3 | 2 | 4 | 1 | 9 | 10 | 5 | 6 | 7 |
| 13R | 3 | 7 | 6 | 5 | 9 | 2 | 1 | 8 | 10 | 4 |
| 14R | 2 | 6 | 4 | 1 | 7 | 8 | 5 | 9 | 3 | 10 |
| 15R | 6 | 1 | 9 | 10 | 4 | 3 | 7 | 2 | 8 | 5 |
| 16R | 1 | 10 | 5 | 6 | 2 | 4 | 8 | 7 | 9 | 3 |
| 17R | 5 | 2 | 7 | 9 | 3 | 10 | 6 | 4 | 1 | 8 |
| 18R | 7 | 5 | 1 | 3 | 8 | 6 | 2 | 10 | 4 | 9 |
| 19R | 4 | 8 | 3 | 2 | 10 | 7 | 9 | 1 | 5 | 6 |
| 20R | 9 | 4 | 10 | 8 | 5 | 1 | 3 | 6 | 7 | 2 |
| 21R | 7 | 6 | 5 | 4 | 3 | 12 | 11 | 10 | 9 | 8 |
| 22R | 11 | 12 | 7 | 8 | 9 | 10 | 5 | 4 | 6 | 3 |
| 23R | 4 | 3 | 10 | 12 | 6 | 5 | 9 | 8 | 7 | 11 |
| 24R | 10 | 7 | 11 | 5 | 12 | 4 | 8 | 6 | 3 | 9 |
| 25R | 5 | 9 | 4 | 10 | 7 | 8 | 3 | 11 | 12 | 6 |
| 26R | 6 | 10 | 9 | 11 | 5 | 3 | 12 | 7 | 8 | 4 |
| 27R | 12 | 8 | 6 | 3 | 10 | 7 | 4 | 9 | 11 | 5 |
| 28R | 8 | 4 | 12 | 6 | 11 | 9 | 7 | 3 | 5 | 10 |
| 29R | 9 | 11 | 3 | 7 | 8 | 6 | 10 | 5 | 4 | 12 |
| 30R | 3 | 5 | 8 | 9 | 4 | 11 | 6 | 12 | 10 | 7 |
・枠パターン２（大逃げ１頭のみの場合：枠パターン１に21R以降＋１されるだけ）
| 枠パターン | A | B | C | D | E | F | G | H | I | J |
| 1R | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2R | 7 | 6 | 5 | 10 | 9 | 1 | 4 | 2 | 3 | 8 |
| 3R | 4 | 10 | 8 | 1 | 2 | 9 | 5 | 6 | 7 | 3 |
| 4R | 10 | 3 | 9 | 5 | 8 | 7 | 1 | 4 | 6 | 2 |
| 5R | 5 | 8 | 2 | 7 | 3 | 4 | 10 | 9 | 1 | 6 |
| 6R | 3 | 9 | 7 | 8 | 4 | 2 | 6 | 5 | 10 | 1 |
| 7R | 8 | 1 | 4 | 6 | 10 | 3 | 9 | 7 | 2 | 5 |
| 8R | 9 | 4 | 10 | 2 | 6 | 8 | 3 | 1 | 5 | 7 |
| 9R | 6 | 5 | 1 | 9 | 7 | 10 | 2 | 3 | 8 | 4 |
| 10R | 2 | 7 | 6 | 3 | 1 | 5 | 8 | 10 | 4 | 9 |
| 11R | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| 12R | 8 | 3 | 2 | 4 | 1 | 9 | 10 | 5 | 6 | 7 |
| 13R | 3 | 7 | 6 | 5 | 9 | 2 | 1 | 8 | 10 | 4 |
| 14R | 2 | 6 | 4 | 1 | 7 | 8 | 5 | 9 | 3 | 10 |
| 15R | 6 | 1 | 9 | 10 | 4 | 3 | 7 | 2 | 8 | 5 |
| 16R | 1 | 10 | 5 | 6 | 2 | 4 | 8 | 7 | 9 | 3 |
| 17R | 5 | 2 | 7 | 9 | 3 | 10 | 6 | 4 | 1 | 8 |
| 18R | 7 | 5 | 1 | 3 | 8 | 6 | 2 | 10 | 4 | 9 |
| 19R | 4 | 8 | 3 | 2 | 10 | 7 | 9 | 1 | 5 | 6 |
| 20R | 9 | 4 | 10 | 8 | 5 | 1 | 3 | 6 | 7 | 2 |
| 21R | 8 | 7 | 6 | 5 | 4 | 13 | 12 | 11 | 10 | 9 |
| 22R | 12 | 13 | 8 | 9 | 10 | 11 | 6 | 5 | 7 | 4 |
| 23R | 5 | 4 | 11 | 13 | 7 | 6 | 10 | 9 | 8 | 12 |
| 24R | 11 | 8 | 12 | 6 | 13 | 5 | 9 | 7 | 4 | 10 |
| 25R | 6 | 10 | 5 | 11 | 8 | 9 | 4 | 12 | 13 | 7 |
| 26R | 7 | 11 | 10 | 12 | 6 | 4 | 13 | 8 | 9 | 5 |
| 27R | 13 | 9 | 7 | 4 | 11 | 8 | 5 | 10 | 12 | 6 |
| 28R | 9 | 5 | 13 | 7 | 12 | 10 | 8 | 4 | 6 | 11 |
| 29R | 10 | 12 | 4 | 8 | 9 | 7 | 11 | 6 | 5 | 13 |
| 30R | 4 | 6 | 9 | 10 | 5 | 12 | 7 | 13 | 11 | 8 |