Did I handle this situation correctly?

[greymule]

There could be one exception in softball.

The 2004 NSA rulebook (8-9-k) says:

"[The] baserunner is not out . . . when the runner is in contact with the base, and is hit by a batted fly or ground ball in fair territory (unless he intentionally interferes with the ball), the baserunner is not out [yes, it's redundant] and the ball is dead. Effect: Ball is dead and all runners advance one base if forced."

I think I remember having heard that NSA since changed this rule to match ASA (that is, the call is determined by the position of the nearest fielder), but I'm not sure.

The 2004 NSA book seems not to have considered the possibility that if F3 was playing in, a ground ball could go right through his legs and then hit R1 standing on the bag. While a ball going through F3's legs and hitting a runner off a base would be in play, Rule 8-9-k doesn't note that exception. So we're left wondering which criterion overrides—the ball having passed a fielder or the runner's being on the base.