Baseball Rules

These rules apply to Major League, all levels of Minor League, NCAA, and World Baseball. World Baseball is defined as a league governed outside of the United States.
All wagers are graded based on the official results published by the relevant league's governing body (e.g., Major League Baseball).
If a game does not start on the officially scheduled day (local time), as published by the governing body, due to a rain delay or other deferral, all wagers shall be void. If a game that has started is suspended, due to a rain delay or other deferral, and resumes within 48 hours of the originally scheduled start time (local time), then all wagers will stand. If a game starts, is then suspended, and resumes more than 48 hours after the originally scheduled start time (local time), all existing wagers will be void unless determined prior to the game's suspension.
If a game is halted and scheduled to resume more than 48 hours after the original scheduled start time (local time), all wagers shall be void unless determined prior to the game's suspension.
In the event of a shortened game, results are official after (and, unless otherwise stated, bets shall be settled subject to the completion of) 5 innings of play, or 4.5 innings should the home team be leading at the commencement of the bottom of the 5th innings (the "4.5 Innings Rule").Once the visiting team has made 15 outs, should a game be called early and the home team is leading, the results of the game will be determined by the score at the time the game is called. Should a game be called early while it is tied or amid an inning in which the visiting team has taken the lead, the game becomes a "suspended game" and is handled according to the rules surrounding suspended games.
Unless otherwise specified, results will only be official after (and bets shall be settled subject to the completion of) a minimum of 9 innings' play, or 8.5 innings should the home team be leading at the commencement of the bottom of the 9th inning (the "8.5 Innings Rule").
For the purposes of live betting, the 8.5 Innings Rule shall automatically apply unless stated otherwise - e.g., in the section below entitled "Overview of Specific Baseball Markets" (which shall take precedence over this section). If a game is shortened due to a rain delay or other deferral, live betting markets which have been determined will stand (irrespective of the 8.5 Innings Rule or whether an official league result has been confirmed).
Extra innings, where applicable, count for settlement purposes.
In the case of a suspended playoff/post-season game, all bets will stand until the game is completed within 90 days of suspension.
Should a mercy rule be applied, for settlement purposes, markets (for both pre-match and live betting) will be settled according to the result as determined by the application of the mercy rule. For baseball games scheduled to be 7 innings, normal baseball rules will apply with all markets settled as per the official result published by the relevant league's governing body and in accordance with the below-listed rules:
Money Line bets will be settled as per the "4.5 Innings Rule"; Bets on markets that are unequivocally determined will stand (example: bets on 1st inning total runs scored will remain settled as determined if the game gets called in the 3rd inning);All other markets (including but not limited to Run Line and Total Runs) will be void if not already unequivocally determined, unless a minimum of 7 innings are played, or 6.5 innings should the home team be leading at the commencement of the bottom of the 7th inning.

Action vs. Listed Pitchers

When wagering on baseball Money Lines, you may be able choose to apply one of the following methods to each wager:

Action: All Money Line wagers are defaulted to "Action" meaning all wagers struck will stand if a pitcher change occurs. Wagers will be honoured at the odds at bet placement and settled as normal.
One Specified Pitcher (Home Listed/Away Listed): A wager on or against one Listed Pitcher, regardless of the other Listed Pitcher. If the Listed Pitcher does not start, the wager is "No Action" and will be refunded.
Both Specified Pitchers: A wager in which both Listed Pitchers must start the game. If both actual starting pitchers are not the ones listed on the wagering ticket, the wager will be deemed "No Action" and refunded.
All other game markets are considered "Action" and wagers will remain open regardless of any personnel change.
Listed Pitchers are not relevant to World Baseball markets and bets on such markets will stand regardless of whether any Listed Pitchers do in fact start. Should a game end in a tie, Money Line wagers will be graded as a push with all other markets settled as per the result.

Player Props

For all MLB player markets, wagers will be void as per below (unless explicitly stated in market specific rules):

Pitcher Markets: If the listed pitcher does not start the game.
Batter Markets (Hits, Runs, etc.): if the listed player does not record a plate appearance.
To Hit a Home Run & Home Run / Game Winner Parlay: Listed players must record at least 1 plate appearance for bets to stand. If listed players do not record a plate appearance, bets on that player will be void. Listed pitchers have no bearing on this market.
Result of Plate Appearance: Listed players must record the relevant plate appearance for bets to stand. If listed players do not record a plate appearance, bets on that player will be void. If a player is substituted out of the game between plate appearances, bets on plate appearances that have already occurred will stand. However, bets on future plate appearance markets will be voided. For settlement purposes, hit by pitches (HBPs) will be settled as Walk/HBP. A fielder's choice, catcher's interference, or reach on error will all be ruled as an "other outcome." A pitch must be thrown in the plate appearance for bets to be action. If no pitch is thrown in the plate appearance (i.e., the pitching team elects to intentionally walk the batter before any pitches are thrown) bets on the market will be void. This shall not however impact other markets which are impacted by the result (i.e., the intentional walk results in an RBI for the batter).
To Hit First Home Run: Listed players must record at least one plate appearance for bets to stand. If listed players do not record a plate appearance, bets on that player will be void. If a non-listed player is ruled the winner, bets on listed qualified players are action. If no Home Runs are hit in the game, "No Home Run" will be deemed the winning selection.
To Hit Next Home Run: Listed position players must record at least one plate appearance for bets to stand. If listed players do not record a plate appearance, bets on that player will be void. Once a player has recorded a plate appearance, wagers made on that player for all subsequent indices (Player to Hit 3rd Home Run, 4th Home Run, etc.) will stand regardless of the number of plate appearances that player ultimately records in the game. In the event there is no "Next Home Run", all bets placed on that index will be void. Example: Wagers placed on "Player to hit 4th Home Run" market will be void in a game where only 3 Home Runs are hit.
Player to Record a Hit Markets: Listed players must record at least one plate appearance for bets to stand. If listed players do not record a plate appearance, bets on that player will be void. Once a player has recorded a plate appearance, bets on all subsequent hits markets (2+ hits, 3+ hits, etc.) will stand regardless of the number of plate appearances that player ultimately records in the game.
To Record Total Bases: Total Bases are recorded through hits. They do not include walks, HBPs, reach on errors, or fielder's choices.
Player Total Strikeouts: Listed Pitcher must start for bets to stand. If the opposing Listed Pitcher does not start, then bets will still stand.
Pitcher Outs: Listed Pitcher must start for bets to stand. If the opposing Listed Pitcher does not start, then bets will still stand.
Pitcher Saves: Save markets will be action regardless of whether the Listed Pitcher(s) appear in the game or not.
1st Inning Strikeout: A change to the status of either listed pitcher, or to either line-up, will have no bearing on the settlement of this market.
Player Performance Parlays: For pitchers, the listed pitcher must start for bets to stand. Bets will stand regardless of a change in status to the opposing listed pitcher. For batters, the listed player must record at least 1 plate appearance for bets to stand. If listed players do not record a plate appearance, bets on that player will be void. A change to the status of either listed pitcher will have no bearing on the settlement of any batter-specific player parlay.
Result of First Pitch: Settled based on the first pitch thrown in the listed half inning. A change to the status of either listed pitcher, or to either line-up, will have no bearing on the settlement of this market. For settlement purposes, a reach on error, catcher's interference, or a foul ball that results in an out will be ruled as an "other outcome." Batted balls that result in the plate appearance ending (ex. hits/outs) will not be regarded as strikes for the purposes of settlement. If a pitcher or batter violation results in an automatic ball or strike to begin the at-bat, the market will be settled based off the outcome of the violation (e.g. if a pitcher violation results in an automatic ball to start the at-bat, 'Ball' will be settled as the winning selection).
Method of First Hit: Settled based on the method by which the first hit of the game (for either team) occurs. A change to the status of either listed pitcher will have no bearing on the settlement of this market. If a listed batter is not in the starting line-up, bets on that batter will be void.
3 Up, 3 Down: This occurs when only three batters come to the plate and record official plate appearances during the listed half-inning. It is possible for players to reach base and for a "3 Up, 3 Down" to still occur (e.g., Runner caught stealing, double play, etc.).
Pitch Velocity: Pitch velocity markets will be settled according to official results as published by MLB's Statcast. Should a batter or pitcher violation occur before a pitch is thrown in the plate appearance, wagers will be settled based on the first pitch thrown following the violation. For starting pitcher velocity markets, the listed batter vs. pitcher matchup must occur for wagers to have action. For relief pitcher velocity markets, the listed batter vs. pitcher matchup must occur in the listed inning for wagers to have action.
Pitches Per Plate Appearance: Automatic balls/strikes that result from pitcher/batter violations will count as pitches. Markets will be void should an intentional walk be issued at any point prior to or during the plate appearance. Should the listed plate appearance not occur, bets on the market will be voided.
Batted Ball Exit Velocity: Batted ball exit velocity markets will be settled according to official results as published by MLB's Statcast.
Distance of Home Run: Distance of home run markets will be settled according to official results as published by MLB's Statcast.

Futures Markets + Other Specials

Award Markets: If an award is shared by two players (e.g., Cy Young, World Series MVP) dead-heat rules will apply. Award Markets are deemed All-In, selections may be requested but may only be available at Paddy Power's discretion. Players do not need to meet any minimum playing time thresholds for bets to have action.
Regular Season Player Totals (Over/Under): Batters must record at least one MLB regular season plate appearance and pitchers must face at least one MLB hitter during the regular season for bets to have action. Should these requirements not be met, wagers will be voided.
Regular Season Win Totals: A team must play at least 98% of games originally scheduled (as of Opening Day of the regular season) for bets to stand, unless the outcome has previously been unequivocally determined. For example, in a shortened 60 game season, at least 59 games must be played for bets to stand (unless previously unequivocally determined). In a 162 game season, 159 games must be played for bets to stand (unless previously unequivocally determined).
Regular Season Specials: All other regular season specials, unless otherwise stated, will be settled should teams play at least 50% of regular season games originally scheduled (as of Opening Day of the regular season). Dead-heat rules apply if multiple players tie for the league lead. In the event that less than 50% of regular season games are played (as scheduled on Opening Day of the regular season), all regular season specials bets (unless otherwise stated) will be void regardless of if they have been determined or not. Where a specified player is listed under a market pertaining to a certain league/team, he will be deemed a player in that league/team for the purpose of the result regardless of any inter-league/team trade which may occur.
Daily Slate Specials: All games scheduled to be played on the listed date must be played to completion (an official result) for bets to stand, unless the outcome has been unequivocally determined.

For example, if 15 games are scheduled on a given day, and one of the games was postponed/rescheduled to another date due to weather, markets that were unequivocally decided would be settled (e.g., "Will Any Player Hit a Grand Slam" would be settled if a Grand Slam was hit in one of the other games). However, markets affected by the postponement would be voided (e.g., "1+ Home Runs to be Hit in All Games" or "All Teams to Score 2+ Runs").

Daily Strikeout Specials: For head-to-head strikeout matchups, both listed pitchers must start the game for bets on the matchup to stand. If the two listed pitchers record the same number of strikeouts, bets on the matchup will be voided. For daily specials about which listed pitcher will record the most strikeouts on a given day, bets on any listed pitcher that does not start will be voided, and dead-heat rules will apply if multiple starting pitchers tie for the daily lead.
Regular Season Series Winner: Games must be played within the originally scheduled series dates to be counted towards series settlement. Series bets will be void if affected by postponed/rescheduled games that take place after the originally scheduled series end date unless the outcome has been unequivocally determined prior to the interruption of the series. For series' scheduled to be an even number of games (e.g. a four game series), either two-way betting or three-way betting (with "Series Tied" as a third possible selection) may be available. If two-way betting is available, bets on that market will be void if the teams split the series. If three-way betting is available, bets on the "Series Tied" option will be ruled as winners if the teams split the series.
Playoff Statistical Leader Specials: Dead-heat rules apply if multiple players tie for the lead of a statistical category (e.g., "Player to Record Most Hits", "Player to Record Most Home Runs", etc.) Batters must record at least one MLB plate appearance and pitchers must face at least one MLB hitter during the listed timeframe for bets to have action. Should these requirements not be met, bets will be voided.
Live Specials: An official no-hit game occurs when a pitcher (or pitchers) allows no hits during the entire course of a game, which consists of at least nine innings (minimum 27 outs) thrown by the pitcher(s). For a perfect game, the pitcher(s) must comply with all requirements of the no-hitter, but also not allow any baserunners to reach via walk, HBP, uncaught third strikes, catcher's or fielder's interference, or fielding errors. No-hitters and perfect games will be settled regardless of the number of pitchers used by the relevant team. For live pitcher specials, all bets will stand if the listed pitcher starts the game. For live batter specials, all bets will stand if the listed player records at least one plate appearance in the game.
World Series, League and Division Winners markets will all be settled in accordance with the official MLB ruling regardless of season length.
Division Exact Finishing Order: Ties between playoff-qualifying teams will be determined in accordance with MLB Playoff tiebreaker rules. For ties between non-playoff qualifying teams, the ties will be broken in the following order: (1) head-to-head record, (2) intra-division record, (3) overall run differential.
All outright markets include playoffs where applicable.

All Star Game:

Any player statistic (e.g., Home Runs, Total Bases, RBI's, Runs Scored, etc.) accumulated during a potential Home Run Derby tiebreaker scenario will not be considered for settlement, unless specifically stated otherwise. All game markets will be settled after 9 innings of play, apart from the Moneyline market and those markets that specifically address events in a potential tiebreaker scenario.

Home Run Derby:

All wagers are graded based on the official results published by mlb.com.
Wagers relating to home run distances will be resulted according to the figures provided by MLB's Statcast.
Player Match Bets: If two contestants are eliminated in the same stage of the competition, bets on which player will advance further will be void.

MLB Draft:

The official draft results on mlb.com will be used for settlement purposes.
For "over/under draft position" markets, undrafted players are assigned the draft position that comes after the last drafted player.
For over/under draft position markets under means the player is chosen with a pick that is less than the designated number and over would be after that designated number, for example a market of 'Player A'.