9 Team League - Double Duals

[ptrsn]

We have a 9 team wrestling league.

I need a schedule where 4 teams go to 1 venue and wrestle 2 matches, for example (R1: AvB, CvD R2: AvC, BvD)

No teams can wrestle each other 2 times.

Is this possible?  Thanks for your time.

[Ian Wakeling]

I have found the schedule below.  Does that work?  I think it may not be possible to have 4 rounds where 8 teams can play simultaneously at two venues.

Hope that helps.

(D I) (C H) | (A B) (F G)
(D H) (C I) | (A F) (B G)
-------------------------
(A H) (F I) | (C D) (E G)
(F H) (A I) | (D E) (C G)
-------------------------
(B I) (E H) | (C F) (A D)
(B E) (H I) | (A C) (D F)
-------------------------
(B D) (G H)
(D G) (B H)
-----------
(E F) (B C) 
(C E) (B F)
-----------
(E I) (A G)
(G I) (A E)