Add another if statement right before you do the average:
=AVERAGE(IF(Prov!$A$2:$A$2978=$A2,IF(Prov!$R$2:$R$ 2978=0,"",Prov!$R$2:$R$2978),""))

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Regards,

Dave


"Tom" wrote:

{=AVERAGE(IF(Prov!$A$2:$A$2978=$A2,Prov!$R$2:$R$29 78))}

Above is a formula that succesfully averages what I want. However
sometime the Prov!range r2:R2978 contains zeros.

How can I eliminate those zeros from the average?

The first part of the formula with the cell reference is looking up and
match a name before performin the average..

TIA

Tom