https://liquipedia.net/rocketleague/MARz

(Ranks for the RL seasons)
Season 2(Xbox): Propect 2
Season 3(Xbox): Challenger 3-- Shooting Star (PC)
Season 4: Diamond 1
Season 5: Diamond 3 (div 4)
Season 6: Champ 2 (div 1)
Season 7: Champ 3 (div 1)
Season 8: GC 1600 in 2s --- 3s
Season 9: GC 1770 in 2s --- 1811 in 3s --- GC in 1s
Season 10: GC 1690 in 2s --- 1785 in 3s ---c3 in 1s
Season 11: GC 1821 in 2s --- 1839 in 3s - c3 in 1s
Season 12: GC 1807 in 2s --- 1765 in 3s ---1277 in 1s
Season 13: GC 1931 in 2s --- 2090 in 3s rank 38 --- 1350 in 1s
Season 14: GC 2104 in 2s ---- 2206 in 3s rank 19 --- 1430 in 1s
Season 1 F2P: SL 1877 in 2s ---- 1944 in 3s rank 38 --- 1357 in 1s rank 73
Season 2 F2P: SL 1987 in 2s ---- 2045 in 3s rank 27 --- 1457 in 1s
--------Retired Gamer-------------
Season 3 F2P: 1780 in 2s ---- 1795 in 3s --- 1445
Season 3 F2P: 1854in 2s ---- 1990 in 3s --- 1352 in 1s