Won French junior doubles championship at Roland Garros in 2023
Claimed three ITF junior tournament titles in Barcelona, Lyon and Dijon
Reached the semifinals of the French junior championships at Roland Garros in 2024
But, to the best of my knowledge, Lemire did not win the doubles at RG juniors in 2023, nor make the semis at RG singles in 2024
Hmm, the ITF site has him with a JCH 314 and his total junior slam activity being losing in QR1 as a QWC in RG singles 2023. He is showing as winning these 3 junior singles titles - a J100, G5, and G4 respectively.