Who’s winning?

It depends. According to the IOC (and almost everyone else) gold medals matter most:

Gold

Silver

Bronze

1 China

38 gold medals

2 US

36

3 Japan

27

4 ROC

20

5 Great Britain

20

But according to the US (and only the US), what matters most is total medals - gold, silver and bronze:

1 US

108 total medals

2 China

87

3 ROC

69

4 Great Britain

63

5 Japan

56

It depends. According to the IOC (and almost everyone else) gold medals matter most:

But according to the US (and only the US), what matters most is total medals - gold, silver and bronze:

Gold

Silver

Bronze

1 China

1 US

38 gold medals

108 total medals

2 US

2 China

36

87

3 Japan

3 ROC

27

69

4 Great Britain

4 ROC

20

63

5 Japan

5 Great Britain

 

20

56