To answer your question about “the last NASCAR race of 20,” I'll assume you mean the last Cup Series race of the 2020 season. Answer

• The final race of the 2020 NASCAR Cup Series season was the Season Finale 500 at Phoenix Raceway, held on November 8, 2020. Chase Elliott won the championship that day.

Context and quick notes

• The 2020 Cup Series season concluded with the championship race at Phoenix, marking the season finale as the last Cup race of that year. Elliott’s title was secured at that event.

If you were asking about a different NASCAR series or a different year (for example 2020’s other series like Xfinity or Truck, or the exact last race of the calendar year 2020 vs. the last points race), let me know which series and year you have in mind and I’ll confirm precisely.