|The BOS (Battle Of Sexes) is a special event where 2 Simultaneous Tourneys, one for Females (BOS-F) and one for Males (BOS-M) will be hosted, and the winners of the 2 Tourneys will play for bragging rights.
- Leagues may host, weekly or monthly, 2 Simultaneous BOS Tourneys, 1 BOS-F, and 1 BOS-M.
- Both BOS Tourneys will appear on the League's Event List.
- The BOS Tourneys will be SE (S4 in case of 1x3 Leagues), Day, and with 25 PIPs fees, so Guest Members will be entitled to join.
- The winner (s) of each BOS Tourney will play a Final BOS Match for bragging rights.
- The BOS-F and BOS-M finalists will get the usual Prizes.
- A Final BOS bonus will be announced in advance, and awarded to the winner (s) of the Final BOS Match.
- The bonus will be shared equally among the winners of the Final BOS Match in case of a Team League match.
- The HA will post the result of the Final BOS Match, allowing the Final BOS PIPs bonus to be transferred to the winners, and the BOS winners Gender and IDs to appear on the League main page.
- A Champion Star will be added to the Champion Profile if s/he is a Premium Member.
- The Champion ID will be added to the Hall of Fame.