この分ぶん

expression

at this rate; if things continue like this

Used to express a prediction or expectation based on the current situation or pace. Often implies a likely outcome, either positive or negative.

• この分ぶんだと、明日あしたには終おわりそうだ。

  At this rate, it looks like it will be finished by tomorrow.

• この分ぶんでは、雨あめが降ふるかもしれない。

  If things continue like this, it might rain.