Some selections to play around with.( if interested).
Race 1. 10 x 7 x 6 ( i like to add 3 and 9)
Race 2. 5x 6 x 9 x 10
Race 3. 1 x 3 with possibly 5
Race 4. 5 x 7 with possibly 6
Race 5. 2 x 4 x 7 x 7 x 5
Race 6. 1 x 4 x 6 x9
Race 7. 2 x 4 x 7
Race 8. 7 x 6 x 1 x 2
The following user(s) said Thank You: Sweet Coetzee, Craig Pienaar, TNaicker