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Promotion ~ V Premier League (Winners stage)
Semi-finals
Final
2014/15 Main
| Pl | W | L | PCT | |||
| 1 | JT Thunders | 21 | 15 | 6 | 54:25 | 0.000 |
| 2 | Suntory Sunbirds | 21 | 16 | 5 | 52:26 | 0.000 |
| 3 | Gosei Trefuerza | 21 | 13 | 8 | 48:40 | 0.000 |
| 4 | Panasonic Panthers | 21 | 13 | 8 | 46:37 | 0.000 |
| 5 | Osaka Sakai | 21 | 8 | 13 | 37:47 | 0.000 |
| 6 | JTEKT | 21 | 9 | 12 | 33:44 | 0.000 |
| 7 | Toray Arrows | 21 | 8 | 13 | 36:47 | 0.000 |
| 8 | Tokyo Great Bears | 21 | 2 | 19 | 18:58 | 0.000 |
Promotion ~ V Premier League (Winners stage)
2014/15 Play Offs
Semi-finals
| 1 | JT Thunders (1) | Bye | |
| 2 | Suntory Sunbirds (2) | Gosei Trefuerza (3) | 3 : 1 |
Final
| 1 | JT Thunders (1) | Suntory Sunbirds (2) | 3 : 0 |
2014/15 Winners stage
| Pl | W | L | PCT | |||
| 1 | JT Thunders | 5 | 4 | 1 | 13:6 | 0.800 |
| 2 | JTEKT | 5 | 3 | 2 | 12:11 | 0.600 |
| 3 | Gosei Trefuerza | 5 | 3 | 2 | 11:10 | 0.600 |
| 4 | Suntory Sunbirds | 5 | 3 | 2 | 9:8 | 0.600 |
| 5 | Osaka Sakai | 5 | 2 | 3 | 9:10 | 0.400 |
| 6 | Panasonic Panthers | 5 | 0 | 5 | 6:15 | 0.000 |
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