Kalshi Referral Code BOOKIES: Get $10 Bonus for 76ers vs. Celtics, Maxey Props, Odds and Picks

By Adam Martin

Apr 19th, 2026 11:39 AM EDT

New Kalshi users who enter promo code BOOKIES at signup and trade $10 in contracts get a $10 bonus. Use it on today's 76ers vs. Celtics Game 1 (1:00 PM ET, ABC). Celtics are 12.5-point favorites. Joel Embiid is out. Jayson Tatum plays against Philly for the first time this season.

Kalshi Referral Code BOOKIES Details for April 19, 2026

How to Claim the Kalshi Promo Code BOOKIES

1. Download the Kalshi app (iOS or Android) or visit kalshi.com.
2. Tap Sign Up. Enter your name, email, date of birth, address, and last four SSN digits.
3. Enter promo code BOOKIES during registration. This activates the bonus.
4. Complete identity verification with a photo ID and selfie.
5. Deposit at least $1 using any supported payment method.
6. Trade $10 in contracts across any market. Split across multiple trades if you want.
7. Your $10 bonus credits automatically once you hit the $10 trade threshold.

76ers vs. Celtics Game 1 Odds

Game time: Sunday, April 19, 2026 at 1:00 PM ET. Location: TD Garden, Boston. TV: ABC.

Key Matchup Factors

Joel Embiid Is Out for Game 1

Embiid underwent an appendectomy on April 9. Coach Nick Nurse confirmed Friday he will not play Sunday. His return timeline for the series is unclear.

Without Embiid this season, Philadelphia went 25-19 but allowed 3.3 more points per 100 possessions. The 76ers went under the total in 24 of 44 games without him.

Jayson Tatum Faces Philly for the First Time This Season

Tatum made his season debut on March 6 after recovering from an Achilles injury. He played 16 regular-season games. None of them were against Philadelphia.

Three of the four regular-season meetings happened before mid-November. Philadelphia never faced Tatum. Boston never faced Paul George. This is a new matchup for both teams.

Season Context

• Celtics: 56-26, No. 2 seed. Top-five net rating on offense and defense for the fourth straight year.
• 76ers: 45-37, No. 7 seed. Beat Orlando 109-97 in the play-in on April 15.
• Regular-season series: Split 2-2. Three of four games played before mid-November.

For live lines and movements, check our NBA playoff odds page.

Tyrese Maxey Player Props and Picks

Maxey is the 76ers' primary scorer and playmaker without Embiid. He has never been the No. 1 option in a playoff series. In 2023, he played behind Embiid and James Harden against Boston. This time, the full offensive load falls on him.

• PICK: Maxey Over Points Prop His usage rate will spike without Embiid. He scored 31 in the play-in and averaged 28.8 during the regular season. Boston has defensive length, but Maxey's volume will be there. He has no choice but to shoot. The over on his points line is the strongest player prop in this game.
• PICK: Maxey Over Assists Prop He averaged 6.7 assists this season. Paul George (21.0 PPG, 41.5% from three in 10 games since returning) and rookie VJ Edgecombe (scored 34 in his NBA debut vs. Boston on Oct. 22) give him real targets. Expect him to stay at or above his season average.

Jaylen Brown: The Celtics' MVP Candidate

Brown carried Boston all season. He posted career highs of 28.7 points, 6.9 rebounds, and 5.1 assists per game. His 35.1% usage rate ranked second in the NBA behind Luka Doncic.

Tatum's return gives Boston a two-star attack Philadelphia has not seen this year. In the last Celtics-76ers meeting on March 1, Boston held Maxey and Edgecombe to 56 combined points on 55 shots in a 114-98 win.

Series Odds and Picks

SERIES PICK: Celtics in 5 Without Embiid, Philadelphia lacks the interior presence to slow Boston. Maxey and George can keep one or two games close if they shoot well from three. But Boston's depth, defense, and home-court advantage are too strong over a seven-game series. The Celtics rank fourth in defensive net rating and second in offensive rating.

TOTAL PICK: Under 213.5 Boston games hit the over in only 36.6% of contests this season. Philly went under in 24 of 44 Embiid-less games. Playoff intensity tightens defenses. The under is the play.

Get daily picks from our NBA expert picks page, and compare all NBA betting markets on Bookies.com.

How to Trade This Game on Kalshi

Kalshi is not a sportsbook. It is a federally regulated prediction exchange under the CFTC. You buy Yes or No contracts priced between $0.01 and $0.99.

The price reflects the market's implied probability. If you buy a Yes contract at $0.85 and the Celtics win, it settles at $1.00. You profit $0.15 per contract. If they lose, you lose your $0.85.

Available markets for today's game:

• Game 1 winner (moneyline equivalent)
• Point spread contracts
• Total points contracts
• Series outcome
• Player-level markets
• Live trading during the game

About the Author

Adam Martin

More About Adam

Adam Martin is a betting analyst and DFS betting expert for Bookies.com who has covered professional sports, with an emphasis on sports gambling, for more than a decade. He is an authority on UFC betting and enjoys covering the NBA, NFL, NHL and MLB. In recent years, Adam has also covered the regulated online casino market in the US and Canada, reviewing hundreds of casinos and welcome bonuses.