先を越す
to forestall one―anticipate one―get the start of one―steal a march on one―be beforehand with one
to forestall the others―get the start of the others―steal a march on the others
先へ進むこと
change in temporal relation: go first, go ahead of, change order with (take precedence over)
先に行くこと
to do something in advance of its appointed time
その先へ
これより先のほう
先に行くね