Simone Biles won the women’s all-around in a performance so dominant she beat her American teammate Aly Raisman by 2.1 points. Just how big is that number?

When Gabby Douglas won gold in London, she beat Russia’s Viktoria Komova by 0.259 points. Nastia Liukin won over Beijing teammate Shawn Johnson by 0.6 points.

Before 2008, when gymnastics was still on the perfect 10 system, the margins were just as tight. Shannon Miller lost to the Unified Team’s Tatiana Gutsu by 0.012 points. Nadia Comaneci, the first woman ever to score a perfect ten, had about as dominant of a win as can be expected, and she won by 0.6 points in 1976.

To put those scores on an even playing field, Raisman had 96.623 percent of Biles points. Miller had 99.969 of Gutsu’s, while Nelli Kim, who won silver in 1976, had 99.243 of Comaneci’s.

This wasn’t just a historic Olympics win, either. No one dominated like this at the world championships, either:

Simone Biles wins all-around gold by 2.1 pts. Previous largest margin of victory at Oly/Worlds under this format (since 2006): 1.250 pts. — Paul Carr (@PCarrESPN) August 11, 2016

Biles won the last three world championships, and with the win, became the first ever woman to win every single all-around world or Olympic title in a quad Olympic cycle.

She even brought her game up a few notches for the Olympics.

Biles' win was by 2.1 points. It's the largest margin she's had in major international AA competition. — Rachel Axon (@RachelAxon) August 11, 2016

When watching Biles hit routine after routine, her excellence starts to become expected. Of course she would hit on floor exercise. Of course she will turn in a fantastic beam and move ahead of Aliya Mustafina in the third rotation. But what she is doing in Rio de Janeiro is otherworldly, and the numbers prove it.