OAKLAND, Calif. — The margin of error is gone.

If the Golden State Warriors want to break Chicago’s single-season wins record of 72, they must win their final four games starting with tonight’s showdown at home against San Antonio.

The bigger priority down the stretch is securing the top seed in the Western Conference, which can be done with a combination of two Warriors wins or Spurs losses, and getting their game back in top form for the start of the playoff.

With two losses in their past three home games, a recent uptick in turnovers and a loss of defensive intensity, the grinding NBA season is finally showing signs of taking its toll on the Warriors (69-9).

“It’s a miracle that we’ve gone this far without hitting a bump in the road,” coach Steve Kerr said Wednesday. “This is to be expected. Every team goes through it. It’s just probably surprising because this season has maybe come too easy for us.”