American Football is the biggest betting sport in the United States, and the NFL is the single most heavily bet league on the calendar. College football (NCAA) is also a major market. It appears across every sportsbook, with deep markets on point spreads, totals, moneylines, and player props.

An NFL game is divided into:

• 4 quarters of 15 minutes each, for a total of 60 minutes of game clock.
• A half-time break between the second and third quarter.

If the game is tied at the end of regulation, overtime rules apply. The exact overtime format can depend on the competition and stage of the season.

A team scores by:

• Touchdown: 6 points.
• Extra point or two-point conversion after a touchdown.
• Field goal: 3 points.
• Safety: 2 points.

Because scoring comes in blocks of points rather than single goals, the point spread is the headline market in football, alongside totals (Over/Under) and the moneyline. Ties are rare: an NFL regular-season game can finish level only if it is still tied after a 10-minute overtime, while playoff games keep playing overtime periods until a winner emerges.

Practical note for NinjaBet

American Football has a very stop-start rhythm. The official clock is 60 minutes, but the full event often lasts much longer because of:

• Frequent stoppages.
• Time-outs.
• Commercial breaks in televised games.
• Reviews and late-game clock management.

For parlays, do not estimate the event duration from the 60-minute game clock alone. Leave a large buffer if the timing matters.

Basketball is one of the most popular betting sports in the US, led by the NBA. It is played between two teams and is divided into four periods.

The length of each period depends on the competition:

• NBA: 4 periods of 12 minutes.
• College (NCAA men’s): 2 halves of 20 minutes.
• FIBA and international competitions: 4 periods of 10 minutes.

The clock stops frequently for:

• Fouls.
• Time-outs.
• Free throws.
• Referee reviews.
• Other interruptions.

If the score is tied at the end of regulation, the game continues with overtime periods until a winner is decided. In the NBA, overtime periods last 5 minutes.

Practical note for NinjaBet

Basketball does not end in a draw. The moneyline always resolves to a winner, and the most popular basketball markets are the point spread and totals (Over/Under), alongside a wide range of player props.

The real-world duration can be much longer than the game clock suggests because the clock stops so often. A game can take significantly longer than its official playing time, especially in close games with many fouls and stoppages late in the fourth quarter.

For parlays, this means basketball legs need a more generous time gap than soccer legs if you want to reduce the chance of events overlapping.

Baseball is one of the classic US betting sports, led by Major League Baseball (MLB). It is played between two teams and is normally divided into 9 innings.

Each inning has:

• A top half, when the away team bats.
• A bottom half, when the home team bats.

The team with the most runs at the end of the game wins.

If the score is tied after nine completed innings, the game continues into extra innings until a winner is determined, so a completed game does not end in a draw.

Practical note for NinjaBet

The main baseball markets are the moneyline (which team wins), the run line (baseball’s fixed 1.5-run spread), and totals (Over/Under) on combined runs.

Baseball has no fixed match clock. A game can vary considerably in length depending on:

• Pitching changes.
• Number of hits and baserunners.
• Reviews and delays.
• Extra innings.
• Weather-related interruptions or postponements.

Because timing is less predictable, baseball is not as straightforward as soccer for building parlays that depend on a clean event sequence.

Ice Hockey is a core US betting sport, led by the NHL. It is played between two teams, and regulation time consists of:

• 3 periods of 20 minutes each.

The team with the most goals at the end of regulation wins. If the game is tied after regulation, the NHL uses:

• A sudden-death overtime period.
• A shootout if overtime does not produce a winner during the regular season.

Because of this, an NHL regular-season game always produces a winner and does not end in a tie. Playoff games skip the shootout and play additional full overtime periods until someone scores. Other competitions, such as the IIHF, use their own overtime and shootout procedures.

Practical note for NinjaBet

The main hockey markets are the moneyline, the puck line (hockey’s fixed 1.5-goal spread), and totals (Over/Under). Many moneylines are settled including overtime and the shootout, so always check the market rules.

Ice Hockey has a more structured timing than baseball, but the real event duration is still longer than the 60 minutes of regulation because of:

• Intermissions between periods.
• Penalties and stoppages.
• Possible overtime and shootouts.

If you use hockey in parlays, leave enough margin between events rather than assuming it will finish shortly after the 60-minute playing clock.

Soccer, known as football in most of the world, is the most popular sport globally. In the US it is a smaller part of the betting market than the major domestic leagues, but its audience and betting coverage are growing steadily. It is also one of the few widely bet sports with a genuine three-way result, which makes it useful to understand.

A standard match is divided into:

• First half: 45 minutes.
• Half-time interval: up to 15 minutes.
• Second half: 45 minutes.

The referee can add stoppage time at the end of each half to compensate for substitutions, injuries, time-wasting, and other interruptions.

At the end of regular time, the result can be:

• Home team win.
• Draw.
• Away team win.

This three-way result (Win / Draw / Loss) is a key difference from the main US sports. A soccer moneyline typically has three possible outcomes, whereas moneylines in the NFL, NBA, MLB, and NHL are two-way, because those sports play on until a winner is decided.

In knockout competitions, if a winner is required and the match is tied after 90 minutes, the competition rules may provide for:

• Extra time: two periods of 15 minutes.
• Penalty shootout: if the tie remains after extra time.

For betting purposes, many soccer markets are settled only on the result after 90 minutes plus stoppage time, unless the market explicitly states that extra time or penalties are included.

Practical note for NinjaBet

Soccer is one of the more convenient sports for parlays because:

• Matches generally start at their scheduled time.
• The total event duration is fairly predictable.
• A standard match usually takes around two hours from kickoff to full-time once stoppage time and half-time are included.

For MultiOdds parlays, it is usually sensible to leave enough space between soccer matches so that one leg can finish before the next begins.

Tennis can be played:

• Singles: one player against one player.
• Doubles: two players against two players.

A match is divided into sets, and each set is divided into games.

The point progression inside a game is:

• 15
• 30
• 40
• Game

If the score reaches 40–40, the game goes to deuce. A player normally needs to win two consecutive points from deuce to take the game.

A set is usually won by the first player or team to reach 6 games with at least a 2-game lead. If the score reaches 6–6, the set may be decided by a tie-break, depending on the competition rules.

Matches are generally played as:

• Best of 3 sets: first player to win 2 sets.
• Best of 5 sets: first player to win 3 sets, used in some major men’s singles competitions.

Practical note for NinjaBet

Tennis is much less predictable in terms of timing than a scheduled team sport:

• Matches can be short or very long.
• Start times can be delayed if earlier matches on the same court run late.
• Outdoor matches can be suspended or postponed because of weather.
• Retirements and withdrawals are relatively common compared with many team sports.

For these reasons, NinjaBet advises caution when using tennis in parlays. If you decide to include tennis, it is generally safer as the last leg of a parlay rather than an early or middle leg that could disrupt the rest of the operation.

Table Tennis, also known as Ping Pong, can be played:

• One player against one player.
• Two players against two players.

A match consists of the best of an odd number of games, commonly best of 5 or best of 7.

A game is won by the first player or pair to reach 11 points, provided they lead by at least 2 points. If the score reaches 10–10, play continues until one side gains a 2-point advantage.

Practical note for NinjaBet

Table Tennis matches are usually much shorter than events such as soccer or basketball, but the total duration can still vary depending on:

• The match format.
• How close the games are.
• Whether many games go beyond 10–10.

Compared with outdoor sports, postponements related to weather are less common because the sport is normally played indoors. It is generally more manageable than tennis when thinking about event timing, though a comfortable time buffer in parlays is still recommended.

Indoor Volleyball matches are usually played as best of 5 sets.

• The first team to win 3 sets wins the match.
• Sets 1 to 4 are played to 25 points.
• If the match reaches 2–2 in sets, the deciding fifth set is played to 15 points.
• A set must always be won by at least 2 points. 

Practical note for NinjaBet

Volleyball has no fixed match duration. A straight 3–0 match can end much faster than a 3–2 match with long sets.

For parlays, this means the finishing time can be uncertain, especially if the match becomes closely contested.

Handball is a niche market in the US but is widely followed internationally. It is played between two teams and, in senior indoor competitions, regulation time is:

• 2 halves of 30 minutes.
• A half-time break that is normally 10 minutes.

The team that scores the most goals wins.

In group-stage settings, a match may end in a draw. In knockout situations where a winner is required, the competition may use extra procedures such as tie-breakers or 7-meter throws, depending on the format.

Practical note for NinjaBet

Handball is a relatively fast, high-scoring sport with a more predictable clock structure than tennis or baseball. Still, stoppages and competition-specific tie-break procedures can affect the final duration.

It can be usable in parlays, but the same principle applies: leave a sensible time buffer when the order of settlement matters.

eSports are competitive video game events. The exact format depends on the title being played.

Common games in betting markets include:

• League of Legends.
• Counter-Strike.
• Dota 2.
• Valorant.

Unlike traditional sports, the structure can vary significantly from one game to another. Matches may be played as:

• Best of 1.
• Best of 3.
• Best of 5.

A League of Legends series, for example, may end quickly in a best-of-one format or last several hours in a best-of-five format.

Practical note for NinjaBet

eSports can be useful in betting markets, but their timing depends heavily on:

• The game title.
• The series format.
• Delays between maps or rounds.
• Technical pauses.

Before using an eSports event in a parlay, confirm the format of the match and allow enough time between legs.

If your goal is to build a parlay where the events settle in a clean sequence, sports with more predictable start times and durations are generally easier to manage.

Usually easier to schedule

• NFL and college football (scheduled start times, though you should budget for their long, stop-start duration).
• NBA basketball.
• NHL ice hockey.
• Soccer.

More variable and harder to schedule

• MLB baseball (no game clock; extra innings and weather can extend or postpone a game).
• Tennis.
• Volleyball.
• Long eSports series.

Special caution

Tennis deserves particular attention because postponed starts, retirements, weather delays, and interrupted matches can make a parlay more complicated to manage. Where possible, avoid using tennis in parlays, or include it only as the final leg so that a delay cannot disrupt the events that still need to settle.

You do not need advanced sports knowledge to use NinjaBet, but understanding the basic structure of common sports helps you make better practical decisions.

The key points to remember are:

• American Football (NFL) is the biggest US betting market; the game clock is 60 minutes, but real event duration is much longer because of stoppages.
• Basketball (NBA) has a fixed game clock and always produces a winner, but the clock stops so often that games run well past their official playing time.
• Baseball (MLB) has no fixed clock and can run long or be interrupted, which makes its timing the least predictable of the major US sports.
• Ice Hockey (NHL) has a clear period structure, but overtime and shootouts may matter.
• Soccer is easy to understand and one of the more manageable sports for parlays, with a distinctive three-way result (Win / Draw / Loss).
• Tennis is highly variable and should be used with caution in parlays.
• Table Tennis is usually quicker and more predictable than tennis, but match duration still varies.
• Volleyball can be short or long depending on the number and closeness of sets.
• Handball has a relatively clear timing structure and is often easier to estimate than more variable sports.
• eSports depend heavily on the game and series format.

When in doubt, focus on two practical questions:

1. How predictable is the event’s timing?
2. Could this sport create problems if I need the event to settle before another one begins?

Answering those two questions will help you choose sports more confidently when using NinjaBet tools and promotions.