Berikut hasil lengkap dan update klasemen Piala Thomas 2018 sampai dengan hari kedua penyelenggaraan, Senin (21/5/2018):
Grup A Piala Thomas 2018
| Pos | Negara | Menang | Kalah | Skor | Gim | Poin |
| 1 | China | 2 | 0 | 10-0 | 20-0 | 420-239 |
| 2 | Prancis | 1 | 1 | 4-6 | 8-14 | 356-421 |
| 3 | India | 1 | 1 | 6-4 | 14-9 | 441-371 |
| 4 | Australia | 0 | 2 | 0-10 | 0-20 | 254-440 |
China 5-0 Prancis
India 5-0 Australia
Grup B Piala Thomas 2018
| Pos | Negara | Menang | Kalah | Skor | Gim | Poin |
| 1 | Korea Selatan | 2 | 0 | 7-3 | 15-9 | 458-390 |
| 2 | Indonesia | 1 | 0 | 5-0 | 0-10 | 210-116 |
| 3 | Thailand | 0 | 1 | 2-3 | 7-6 | 246-251 |
| 4 | Kanada | 0 | 2 | 1-9 | 2-19 | 260-417 |
Korea Selatan 4-1 Kanada
Grup C Piala Thomas 2018
| Pos | Negara | Menang | Kalah | Skor | Gim | Poin |
| 1 | China Taipei | 1 | 0 | 5-0 | 10-0 | 212-166 |
| 2 | Jepang | 1 | 0 | 4-1 | 8-3 | 211-178 |
| 3 | Hong Kong | 0 | 1 | 1-4 | 3-8 | 178-211 |
| 4 | Jerman | 0 | 1 | 0-5 | 0-10 | 166-212 |
Grup C tidak menggelar laga pada hari kedua.
Grup D Piala Thomas 2018
| Pos | Negara | Menang | Kalah | Skor | Gim | Poin |
| 1 | Denmark | 1 | 0 | 5-0 | 10-0 | 210-68 |
| 2 | Malaysia | 1 | 0 | 5-0 | 10-0 | 210-127 |
| 3 | Rusia | 0 | 1 | 0-5 | 0-10 | 127-210 |
| 4 | Aljazair | 0 | 1 | 0-5 | 0-10 | 68-210 |
Malaysia 5-0 Rusia
Denmark 5-0 Aljazair
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