Since Tim Duncan made his NBA debut in 1997, the San Antonio Spurs have won a lot of games. They’ve only fallen below 50 once in his 17-year career — and that was the lockout-shortened 1999 season, when the franchise won its first championship.

Just how incredible is this? Well, only four teams in NBA history have had more 50-win seasons than Duncan has, and one of those teams is the Spurs, who have had 16 of their 26 50-win seasons with Duncan.

To put it in even more perspective:

Two teams (the Charlotte Bobcats and Toronto Raptors) have never had so much as one 50-win season.

Duncan’s 16 equals the combined total of the Los Angeles Clippers (2), Memphis Grizzlies (2), Brooklyn Nets (4), Golden State Warriors (4) and Minnesota Timberwolves (4).

Only half of the 30 teams have won 50 games at least 10 times.

Duncan has experienced as many 50-win seasons as the Philadelphia 76ers franchise.

Following the Spurs’ 111-90 Wednesday victory over the Golden State Warriors, the Spurs’ winning streak stands at a franchise-record 19. They’ve won 59 games on the season, standing on the cusp of the third 60-win season of Duncan’s career. And they wouldn’t have won that many games (or their four titles) without him.

Oh, and the only year they didn’t win 50 games with Duncan? That was the lockout-shortened 1998-99 season, in which only 50 games were played total. The Spurs went 37-13 (a 61-win pace). Then they won the first championship in franchise history.

That speaks as loudly as any of Duncan’s accolades. This is one of the all-time greats, and he’s not done yet.