Gold medallist Valerie Adams says she's "pretty happy" with her win in Glasgow today but admits she would have liked to have cracked 20 metres.

Valerie Adams wins gold at Commonwealth Games Source: SKY

The shot-put champion won New Zealand's 600th Commonwealth Games medal, after strolling to the gold with a best throw of 19.88 metres.

The reigning Olympic and world champion was predictably far too good for the field and told ONE Sport she doesn't get bored and her objective is always to win a competition.

Adams was twice red-flagged and her best throw came on her second of the evening. Cleopatra Borel of Trinidad and Toabago was second with a best throw of 18.57 metres while Canadian Julie Labonte took bronze with a throw of 17.58m.

Adams said she felt "really flat out there" and couldn't get over the 20 metre threshold she strives for.

"I'm in shape to do it, it just didn't come," she said.

"It's difficult to push yourself to throw bigger throws if nobody's coming from behind to try and beat you."

And the 29-year-old has no intention of quitting.