It has taken them 26 years to reach that milestone and there have been some memorable matches along the way.
Here we pick out 17 significant fixtures from ther 699 played by Leeds in the regular round so far.
How many do you remember and which games would be on your list?
13. Huddersfield 16 Rhinos 20 (September 25, 2015)
The greatest moment. Ryan Hall's try after the hooter secured the league leaders' shield and kept Rhinos on track for the treble. Photo: SWpix.com
14. Castleford 66 Rhinos 10 (March 2, 2017)
Rhinos were humiliated by Luke Gale-inspired Tigers and coach Brian McDermott was mocked afterwards for predicting they would go on to win the Grand Final. Photo: Steve Riding
15. Rhinos 27 Huddersfield 26 (August 2, 2020)
In their first game after lockdown, Rhinos trailed 26-6 with 17 minutes left, but an amazing fightback ended with Luke Gale kicking a golden-point drop goal. Photo: Martin Rickett/PA
16. Rhinos 26 Warrington 4 (September 13, 2019)
Jamie Jones-Buchanan kicked the only goal of his career in his 373rd and last game for Rhinos. Photo: Bruce Rollinson
17. Wigan 0 Rhinos 14 (August 25, 2021)
Luke Briscoe is pictured on the attack as Leeds became the first team to kkep Wigan scoreless at DW Stadium. Photo: Paul Currie/SWpix.com