Something like this?

EXEC DB1.dbo.MySP

EXEC DB2.dbo.MySP

EXEC DB3.dbo.MySP

EXEC DB4.dbo.MySP

EXEC DB5.dbo.MySP

EXEC DB6.dbo.MySP

EXEC DB7.dbo.MySP

EXEC DB8.dbo.MySP

EXEC DB9.dbo.MySP

EXEC DB10.dbo.MySP

EXEC DB11.dbo.MySP

EXEC DB12.dbo.MySP

EXEC DB13.dbo.MySP

EXEC DB14.dbo.MySP

EXEC DB15.dbo.MySP

EXEC DB16.dbo.MySP

EXEC DB17.dbo.MySP

EXEC DB18.dbo.MySP

EXEC DB19.dbo.MySP

EXEC DB20.dbo.MySP

John