b) In the first twin trifecta contest, winning wagers and distribution of the daily net pool shall be determined using the following precedence, based upon the official order of finish for the first twin trifecta contest:

1. 1) As a single price pool to those whose combination finished in correct sequence as the first three betting interests; but if there are no such wagers, then
2. 2) As a single price pool to those whose combination included, in correct sequence, the first two betting interests; but if there are no such wagers, then
3. 3) As a single price pool to those whose combination correctly selected the first place betting interest only; but if there are no such wagers, then
4. 4) The entire twin trifecta pool, for that contest, shall be added to the carryover pool and the second half shall be canceled.

d) The carryover pool shall be distributed to winning wagers on the second twin trifecta contest according to the following precedence, based upon the official order of finish for the second twin trifecta contest:

1. 1) As a single price pool to those whose combination finished in correct sequence as the first three betting interests; but if there are no such wagers, then
2. 2) The entire carryover pool for that contest shall be added to any existing carryover and retained for the next consecutive second half twin trifecta pool.