Nike Inc (NKE.N) forecast future orders below analysts' estimate on a constant currency basis, in part due to weakness in its basketball category and increased competition from rival Adidas, which has continued to gain ground in North America.

The company's net income rose to US$1.25 billion, or 73 cents per share, in the first quarter ended Aug. 31, from US$1.18 billion, or 67 cents per share, a year earlier.

Revenue for the world's largest footwear maker rose to US$9.06 billion from $8.41 billion.

The company's worldwide orders for delivery from September 2016 through January 2017, a demand gauge it calls "futures orders," were up 7 per cent on constant currency basis.

Analysts on average had expected futures orders to rise 8 per cent, according to Consensus Metrix.