Situation: Multiple field complex. 1 out and runner on first. Batter hits a solid line drive to right center gap (adult fields so the fences were 300'). As the lead runner is in the process of rounding third a foul ball from another field lands in the infield and ump calls dead ball (our HC though the runner had cleared 3rd but in umpires judgement she had not). The right fielder still has not yet gotten to the ball. He sends lead runner back to 3rd and awards batter-runner 2nd. Is this correct?