Check out official UFC Fight Night 145: Blachowicz vs. Santos weigh-in results.
| kg | lb | Fighter 1 | Fighter 2 | lb | kg | |
| 93.0 | 205 | Jan Blachowicz | Vs | Thiago Santos | 204 | 92.5 |
| 119.3 | 263 | Stefan Struve | Vs | Marcos Rogerio de Lima | 255 | 115.7 |
| 93.4 | 206 | Gian Villante | Vs | Michal Oleksiejczuk | 204 | 92.5 |
| 56.7 | 125 | Liz Carmouche | Vs | Lucie Pudilova | 126 | 57.2 |
| 61.7 | 136 | John Dodson | Vs | Petr Yan | 136 | 61.7 |
| 92.5 | 204 | Magomed Ankalaev | Vs | Klidson Abreu* | 209 | 94.8 |
| 77.6 | 171 | Dwight Grant | Vs | Carlo Pedersoli | 171 | 77.6 |
| 66.2 | 146 | Daniel Teymur | Vs | Chris Fishgold | 145 | 65.8 |
| 57.2 | 126 | Veronica Macedo | Vs | Gillian Robertson | 125 | 56.7 |
| 70.3 | 155 | Damir Hadzovic | Vs | Polo Reyes | 155 | 70.3 |
| 77.1 | 170 | Michel Prazeres | Vs | Ismail Naurdiev | 170 | 77.1 |
| 70.8 | 156 | Rustam Khabilov | Vs | Diego Ferreira** | 157 | 71.2 |
| 70.3 | 155 | Damir Ismagulov | Vs | Joel Alvarez | 156 | 70.8 |
*Abreu missed weight and will forfeit 20% of his purse.
**Ferreira missed weight and will forfeit 20% of his purse.
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