[A levels] CJC results day

Hello, I’m a j3 awaiting results. To CJ alumni , does anyone know if those top scorers will be called in the morning of the results day? If so, usually by what time and what result would qualify a ‘top scorer’ qualify ? Additionally, there is a “library club” in CJ which takes pictures before/after receiving results (maybe go on stage? I’m not so sure) , do people from the “library club” need to go early or something? I kinda need to know the answers to these qns as I plan to eat buffet with my friends before results. Any help would be appreciated !