* indicates new rule or rule change

  1. Games will be seven innings in length. Pool games may end in a tie. No new inning can start after 2 hours and 10 minutes.
  1. A mercy rule is in effect: ten or more runs after the fifth inning (4 ½ if the home team is ahead).
  1. A six run limit is set for each inning except the seventh or any extra inning. Play is dead when the sixth run is scored. Any pitcher, starting and finishing such an inning, will be considered to have pitched three outs or one inning. Any relief pitcher will be credited with any outs he registers.
  1. *Pitchers may pitch two consecutive innings or six consecutive outs. One pitcher may pitch any three consecutive innings or nine outs (all age brackets). A pitcher cannot re-enter the game as a pitcher once he has been removed. 
  1. A limit of five warm-up pitches is allowed per pitcher per inning at the umpire's discretion. 
  1. Plastic or rubber spikes are encouraged.
  1. The batting line-up will consist of a minimum of 12 batters to a maximum of 18, OR all members of the declared roster if less than twelve. If only eleven batters bat, an automatic first out will be declared in the third and sixth innings. If only ten batters bat, an automatic first out will be declared in the second, fourth, and sixth innings. If only nine batters bat, an automatic first out will be declared in the third, fourth, fifth and sixth innings.

Only those players listed in the batting line-up for each game may be used defensively. Defensive changes are unlimited provided that the players appear in the batting line-up. These changes do not affect the batting order. Any player, not present for his plate appearance, will be declared out.

A substitution to the batting order may be made. Once a player is removed from the batting order, he may not return to the game in any playing capacity. (50 plus - this rule does not apply, all players on the roster can play defensively, and do not have to be a part of the batting lineup - however once removed from the batting lineup"minimum 12 / maximum 18" that player cannot be placed back into the batting order but still can play defensively). All possible participants for a game should be listed as extras on the line-up card.

In the event of an injury or illness which causes a player to leave the game, and no substitute is available, the umpire is to be notified and the player's position in the batting order shall be voided with no out charged provided that twelve batters are still in the line-up. If the line-up drops below twelve batters, then paragraph one above will be in effect.


  1. Nine defensive players are to be on the field at one time. 
  2. The batter and base runners must wear protective headgear. Helmets with DOUBLE ear flaps (are encouraged) or single ear flaps facing pitchers when batting  MUST be worn. Catchers must wear appropriate head protection. Refusal to wear appropriate head protection may result in ejection of player ignoring the rule.

  1. A courtesy runner may be used. Batters requiring a courtesy runner must be designated prior to the game. The last out is to be the courtesy runner, unless he is also so designated, or is the catcher; go to the previous out. A limited number of designated batters (3) will be permitted.
  1. *The catcher may be replaced as soon as he reaches base, but must be replaced as soon as two are out (all age brackets). The courtesy runner is to be the last out.
  1. Breaking ties in the standings after the round robin:

a) head to head game

b) fewest number of runs allowed against common opponents divided by the number of innings played in a defensive posture

c) runs scored (to a maximum of ten per game) against common opponents

d) a coin toss may be used, if (a) - (c) do not break the tie. If the tie to be broken is between first and second, or third and fourth in the four team pools, a coin toss will be used because it only determines standing for the play-off pool. If the tie exists between second and third, thus determining to which pool a team advances, then an extra game will be played.

If more than two teams are tied, apply the rules until one team is eliminated and then return to (a) and start again.

     12.B When two teams from different pools are tied in points after the round-robin, but do not

              have identical records, the tie is broken as follows:

a) most wins

b) fewest runs allowed divided by the number of innings played in a defensive posture

c) most runs scored (to a maximum of ten per game)

d) a coin toss may be used to determine positions in the tier, if (i) - (iii) do not break the tie. If the tie will determine to which tier a team advances, then an extra game will be played.

If more than two teams are tied, apply the rules until one team is eliminated and then

return to (a) and start again.

  1. A player may play for only one team during the tournament. Each team is to submit a roster of up to 21 players to the Tournament Chairman six weeks prior to the tournament opening date. Additions, not to exceed the roster limit of 21 players, may be made prior to the tournament with the approval of the relevant Director and the President.
  1. *Players must be 35 years of age during the tournament year. The Masters' Division players must be 43 years of age during the tournament year. The Seniors' Division players must be 50 years of age during the tournament year. The Legends' division players must be 57 years of age during the tournament year. Two items, or a photo driver's license, may be required as proof.
  1. All teams, players and coaches, must be in full and identical uniforms.
  1. Teams must be ready to play 15 minutes before the scheduled game time.
  1. Body contact is strongly discouraged. Deliberately running a catcher or defensive player at a base, will result in the runner being called out, ejection from the game, and disqualification from the tournament. No other runners may advance as a result of the interference.
  1. All umpires officiating in the National Tournament must be qualified or carded to Senior League equivalent (e.g. Baseball Ontario Level 3), and be properly attired.
  1. All teams are to use wood bats.
  1. *i) - Any ejected team member must leave the field of play and the vicinity of the playing field upon gathering their belongings.
    Any further contact with the umpire is to be reported to the Chief of Umpires and  the Tournament Director immediately upon completion of the game.

      ii) - Ejection reinstatement: - Ejected team members are suspended from further

            competition until they meet with the Discipline Committee or  the President. and two

            executive members. Failure to do so will result in a team forfeiture and further


            Any team member ejected twice during a CNOBF tournament year, regardless of the

            reason(s), is disqualified from further competition (players ejected inprevious CNOBF

            tournaments may risk similar consequences.

           Appeal:  Any team player ejected twice must file a written appeal for hearing with the

           Discipline Committee. After the appeal hearing the Committee decision will be deemed final.