Where there are horses starting on the second line, the post position order shall be as follows:(1) on a half-mile racing strip:(a) first position on the first line;
(b) second position on the first line;
(c) third position on the first line;
(d) first position on the second line;
(e) fourth position on the first line;
(f) fifth position on the first line;
(g) sixth position on the first line;
(h) seventh position on the first line;
(i) eighth position on the first line;
(j) second position on the second line;
(k) third position on the second line;
(l) fourth position on the second line;
(m) the others are placed in similar fashion to the right of the horse having the fourth position on the second line;
(2) on a racing strip longer than half a mile but shorter than seven-eighths of a mile:(a) first position on the first line;
(b) second position on the first line;
(c) third position on the first line;
(d) fourth position on the first line;
(e) first position on the second line;
(f) fifth position on the first line;
(g) sixth position on the first line;
(h) seventh position on the first line;
(i) eighth position on the first line;
(j) ninth position on the first line;
(k) second position on the second line;
(l) third position on the second line;
(m) fourth position on the second line;
(n) the others are placed in similar fashion to the right of the horse having the fourth position on the second line;
(3) on a racing strip not less than seven-eighths of a mile long:(a) first position on the first line;
(b) second position on the first line;
(c) third position on the first line;
(d) fourth position on the first line;
(e) first position on the second line;
(f) fifth position on the first line;
(g) sixth position on the first line;
(h) seventh position on the first line;
(i) eighth position on the first line;
(j) second position on the second line;
(k) ninth position on the first line;
(l) tenth position on the first line;
(m) eleventh position on the first line;
(n) third position on the second line;
(o) fourth position on the second line;
(p) the others are placed in similar fashion to the right of the horse having the fourth position on the second line.