How Do NBA First Basket Bets Work, and Why Is the Hold So High?

A first basket bet asks one question: which player scores first? You pick from a menu of the ten starters, sometimes with bench players listed, each at long odds such as +400 or +800. Sister markets ask which team scores first, or who scores first for each team.

It is one of the most popular novelty markets in NBA betting, and one of the most expensive. With illustrative but typical-looking prices, the implied probabilities across the ten starters add up to about 138%. A fair market would add up to 100%. The difference is the book's margin, and it is roughly six times what the book charges on a standard point spread. The rules for what counts as the "first basket" also differ between books, so the same event can win at one book and lose at another.

How does the tip-off decide the first possession?

The NBA's playing rules (Rule 6, Section I of the 2025-26 edition, the version posted as of September 2026) say the game and each overtime start with a jump ball in the center circle. The team that wins the tap has the first possession. The rules then fix the rest of the game's period starts. The team that gained first possession inbounds to begin the fourth quarter. The other team inbounds to begin the second and third.

So the tip decides the first possession, not the first basket. The team that wins it gets the first chance to score. If that trip ends in a miss or a turnover, the other team gets a chance, and so on.

Take illustrative numbers to see how much the tip is worth. Say Team A wins the tip 55% of the time, because its center is taller or better at jump balls. Say also that the team with the first possession scores first 60% of the time. Team A's chance of scoring first is:

0.55 × 0.60 (wins tip, scores first) + 0.45 × 0.40 (loses tip, scores first anyway) = 0.33 + 0.18 = 0.51.

A clear tip advantage becomes a one-point edge on first-team-to-score. At 51%, the fair price is about −104. If the book posts both teams at −115, each side implies 53.49%. The tip edge is smaller than the margin. That is the structural problem with this whole market family.

Why is the hold so high? A worked example

Below is an illustrative first-basket board for the ten starters in one game. These are round numbers chosen to look like a real menu. They are not taken from any book.

Player	Odds	Implied probability
Starter 1	+350	100 ÷ 450 = 22.22%
Starter 2	+400	100 ÷ 500 = 20.00%
Starter 3	+450	100 ÷ 550 = 18.18%
Starter 4	+550	100 ÷ 650 = 15.38%
Starter 5	+650	100 ÷ 750 = 13.33%
Starter 6	+700	100 ÷ 800 = 12.50%
Starter 7	+800	100 ÷ 900 = 11.11%
Starter 8	+900	100 ÷ 1,000 = 10.00%
Starter 9	+1100	100 ÷ 1,200 = 8.33%
Starter 10	+1400	100 ÷ 1,500 = 6.67%
Total		137.73%

For a positive American price, implied probability is 100 ÷ (odds + 100). One of these ten players will score first in almost every game, because bench players rarely check in before the first basket. The true probabilities should therefore sum to roughly 100%. These sum to 137.73%.

The theoretical hold is 1 − 1 ÷ 1.3773 = 27.4%. For comparison, a spread at −110 on both sides sums to 104.76%, a hold of 4.55%.

To see what that does to one bet, strip the margin out proportionally. Starter 1's fair probability is 22.22% ÷ 1.3773 = 16.13%. His fair price is (1 − 0.1613) ÷ 0.1613 × 100 = about +520, not +350. A $10 bet at +350 returns $45 when it wins. Its expected value is 0.1613 × $45 − $10 = −$2.74, a loss of about 27 cents per dollar staked. Proportional de-vigging is only one way to split the margin. The Academy's guide to removing the vig shows others. Every method tells the same story at this size of overround.

Why do books charge so much?

Three reasons, in rough order of importance.

Ten-way markets are hard to price precisely. On a two-way market a pricing error of a point or two is contained. On a ten-way market each price carries its own error, and a book protects itself by padding all ten.

Customers accept it. First basket is bought as a cheap lottery ticket with a sweat in the first minute. A market people buy for fun faces less pressure from price-shoppers than a spread does.

Late information. Starting lineups can change close to tip. A book that is slow to update after a late scratch is exposed on every player whose chances just rose.

How do books settle first basket bets?

This is where the market becomes a trap for the unwary. Three published rulebooks, three different sets of rules:

• DraftKings (Massachusetts house rules, implementation date 26 August 2025) settles its first field goal market on the first player to make a field goal. Free throws do not count. Bets on non-starters are void. If the first scorer was not listed as a selection, every bet on the market loses.
• FanDuel (Ohio house rules effective 22 July 2026) settles "First Basket" on the first score of the game, inclusive of free throws, per the official box score. A listed player who does not start is void.
• BetMGM (Massachusetts house rules, file dated 22 April 2026) also ignores free throws for its first field goal market. It cancels bets on a player who does not take part, or who comes on as a substitute after the first field goal. That leaves a bench player live if he checks in before anyone scores. If an unlisted player wins, all bets stand. Field goals into a team's own basket are ignored.

Consider the case where they diverge. A player is fouled on the game's first possession and makes a free throw. His teammate hits a jumper on the next possession. At FanDuel, the free-throw shooter is the first basket winner. At DraftKings and BetMGM, the free throw does not count and the jump shooter wins. Same game, same bet name, different winner.

Before you bet, read the market's own rules at your book and in your state. The Academy's guide to sportsbook house rules explains where to find them.

What about "first team to score" and "first scorer for each team"?

First team to score is a two-way market. It usually carries a much smaller margin than the player market, often priced like a moneyline. The tip-off arithmetic above is the whole analysis. The edge from winning the tap is real but small, and it is diluted by everything that happens after the ball goes up.

First Team Basket Scorer narrows the menu to five players per team. FanDuel's Ohio rules settle it on each team's first scorer, with non-starters void. Fewer runners means a smaller overround than the ten-way market, though it is still well above a spread.

Is there any skill in first basket betting?

Some. Bettors who do it seriously track which center tends to win tips, which player takes the first designed shot, and how often each starter shoots early. That information is real. It has to overcome a margin in the 20-30% range on the illustrative board above. Beating a 4.55% spread hold takes a sharp opinion. Beating a 27% hold on a single bet takes a pricing error, or a boosted price the book has made worse for itself on purpose.

That is the honest framing. First basket is entertainment with a very expensive ticket. If a book offers a profit boost on it, the arithmetic in this piece is how to check whether the boost closes the gap. Most of the time it doesn't. The next guide moves to a much bigger market with its own quirks: college basketball betting.