| 1. | 4 doubles matchups / sets per team per match night. No re-scheduling of league games (to another day) will be allowed for the convenience or availability of player(s). |
| 2. | 3.0, 3.5, 4.0, and a 9.0 combination of skill level. Maximum skill rating for 9.0 games is 5.0. Player combinations can only be 1 level apart if combination of skill levels equates to specific game combination. The order of play for the games will be on a sequential rotation: 3.0, 3.5, 4.0, and 9.0 for match night 1; 3.5, 4.0, 9.0, 3.0 for match night 2; 4.0, 9.0, 3.0, 3.5 for match night 3; and so forth. |
| 3. | Each player will self-rate their skill level during the GNTF online access registration. Self-rated skill level adjustments will be subject to review by a ratings committee. |
| 4. | 8 games pro set (no ad). “Deciding Point” 40-40 will be receiver choice of which player receives the serve. If the game set reaches 7-all, players must play a set tie-break (12 points tiebreaker). The order of serving continues in the same rotation. The first team to reach 7 points wins the game, provided there is a margin of two points over the opponents. If necessary, the tie-break game shall continue until this margin is achieved. The score is to be recorded as 8-7. |
| 5. | 12-points tiebreaker. In doubles, the first server shall serve one point from the right (deuce) side. The second server shall serve two points, starting from the left (ad) side and ending on the right side. The third server shall serve two points, starting on the left and ending on the right side. The fourth server shall serve one point from the left side and then players change ends of the courts. The fourth server shall then serve one point from the right side. Play continues in such a manner until one team wins at least seven points with a two-point margin. Teams change ends of the court every six (6) points. |
| 6. | Regular season and playoff match win will be based on total games won of the four sets of 8 games pro set. In the event of a tie in number of games won, the team that wins majority of game sets will be awarded the win. In the event of a tie in number of games won and number of game sets, the final pairing shall play an additional 12-point tie breaker to determine the win. |
| 7. | Foot faults are penalized in the same way as missing a serve. If a player starts the motion with the foot on the line already then foot fault may be called. If the server just steps onto the line as they hit the ball, no foot fault should be called. The receiver or the receiver’s partner may call foot faults only after all reasonable efforts, such as warning the server, and the foot fault is so flagrant as to be clearly perceptible from the receiver’s side. |
| 8. | Team standings will be based on match wins and losses. In the event of a tie in wins and losses, the 1st tie breaker will be head-to-head match wins and losses. If there is still a tie (each team has beaten each other), the next tie breaker will be percentage (%) of sets won during the round robin or season. If by some rare chance this is still a tie, percentage (%) of games won during the regular season will be the 3rd tie breaker for the standings. |
| 9. | Each team line-up for the week is to be submitted via GNTF web site by the team captain before 5:30pm of game day. |
| 10. | In the event that the captain is unable to accomplish Rule 9, weekly line-up can also be submitted in writing via email to admin@gntf.org prior to cut-off time as specified in Rule 9. |
| 11. | Team can add players to roster until the mid-point match night of the regular season. |
| 12. | Warm up is limited to 5 minutes including practice serves. The home team captain shall be responsible for time keeping. |
| 13. | The 5-minute default rule is in effect for all scheduled matches. |
| 14. | Defaults may only be called if a court is available and ready for play. |
| 15. | First game set is at 6:30pm, with 5 minutes warm-up. A team without both players on the court by 6:35 pm, or 5 minutes later from the game set start, shall forfeit their game. |
| 16. | The second set shall start no earlier than 7:15pm, with 5 minutes warm-up. Team without both players on court 5 minutes after court being available and arrival of the opposing team (both players) shall forfeit their game. |
| 17. | The third set shall start no earlier than 8:00pm, with 5 minutes warm-up. Team without both players on court 5 minutes after court being available and arrival of the opposing team (both players) shall forfeit their game. |
| 18. | Fourth set shall start no earlier than 8:45pm, with 5 minutes warm-up. Team without both players on court 5 minutes after court being available and arrival of the opposing team (both players) shall forfeit their game. |
| 19. | In a forfeited game set, 8 games won to the winner and 0 games to the forfeited team. |
| 20. | Scores must be entered within 24 hours of the conclusion of the match by the Home Team captain. |
| 21. | Each captain, or his authorized representative, must digitally sign the score sheet on GNTF.org within 24 hours of the end of the match to acknowledge the match scores. |
| 22. | In the event of rain during a match, completed individual game sets will stand as played. Play may resume only if all 4 players agree that the court is sufficiently dry. Incomplete game sets must be resumed by the same players at the exact game and point as they stood when play was halted. By majority vote, the captains may decide to cancel the match night due to rain. |
| 23. | No make-up games due to rain will be played during regular season. |
| 24. | Match balls shall be provided by the league teams. |
| 25. | GNTF will provide web / online access for captains to manage weekly line-ups. |
| 26. | All players on a team’s roster will be required to play a minimum of one (1) match for their team during the course of the regular season. If a player fails to complete one (1) match for their own team by the regular season, the said player will be ineligible to play in the Play-Off segment of the given season. If this rule is disregarded and said player does play in the Play-Off segment of the given season, that specific game will be forfeited with a zero score. In the event of an injury or extenuating circumstances prohibiting a player to continue league play, the minimum match rule may be waived with majority of the captains’ votes. |
| 27. | Game results will be updated on GNTF web site. |
| 28. | Any dispute will be decided by the captains’ votes. |
| 29. | League members shall not reserve the free courts at the Guam National Tennis Center (GNTC) for practice, warm-ups, or any other purpose during league nights. |
| 30. | A warmup court will be designated for the league during league nights. League players may use it for warm-up but shall be limited to no longer than 10 minutes to allow others league players the opportunities to warm up. |
| 31. | Please be mindful and observe Guam Sports Complex and GNTC's no parking zones. |
