Underdog Promo Code BDC $75 Free For Celtics vs. 76ers Predictions April 19
Use Underdog promo code BDC and get your $75 in Bonus Entries. The promo lets new users play $5 to get $75 in Bonus Entries.
Underdog Promo Code Details
| 📝 Underdog Promo Code | BDC |
| 🎁 Underdog Welcome Bonus | Play $5, Get $75 |
| 🏈 Sports Available | NFL, MLB, NBA, NHL, Tennis, More fantasy contests |
| 📊 Underdog Promo Terms | Minimum age is 18+, but 21+ in AZ, MA, and VA, and 19+ in AL and NE. Concerned with your play? Call 1-800-GAMBLER |
| ✅ Last Verified on | Apr 19, 2026 |
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- Click any "Visit Site" link on this page.
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Underdog Best Bets for NBA Games for April 19, 2026
The 2026 NBA Playoffs tip off on Sunday with two lopsided first-round matchups headlining an ABC doubleheader. Boston hosts a depleted Philadelphia squad missing Joel Embiid, while defending champion Oklahoma City opens at home against a scrappy Phoenix team that snuck in through the play-in. Both games feature double-digit spreads and legitimate questions about whether the underdogs can keep it close.
Philadelphia 76ers at Boston Celtics | 1:00 PM ET | ABC
45-37 vs 56-26
| Spread | Moneyline | Total |
|---|---|---|
| Celtics -12.5 | Celtics -800 / 76ers +550 | 213.5 o/u |
Boston (56-26) enters as an overwhelming favorite against a 76ers squad (45-37) that went just 21-23 without Joel Embiid during the regular season. The Celtics went 8-2 ATS over their last 10 regular-season games and covered at a 49-33 clip all season. With Tatum healthy and a fully intact roster, this is the most complete version of Boston that Philadelphia has never actually faced this year.
Without Embiid, Philadelphia's offensive rating dropped to 112.9 and the Sixers were outscored by 17.3 points per game in Boston across three previous visits. The Under is the sharpest angle here, Boston led the NBA in Under rate at 63.4%, and a hobbled 76ers offense figures to drag this total down.
BEST BETS:
- Celtics -12.5 — Boston went 8-2 ATS in its last 10 and the Sixers were outscored by 17+ per game in Boston without Embiid. Tatum's return gives the Celtics a dimension Philadelphia has no answer for.
- Under 213.5 — The Celtics hit the Under at the highest rate in the NBA (63.4%) and held opponents to a top-five defensive rating. A depleted 76ers offense without Embiid only reinforces the low-scoring environment Boston prefers.
Phoenix Suns at Oklahoma City Thunder | 3:30 PM ET | ABC
45-37 vs 64-18
| Spread | Moneyline | Total |
|---|---|---|
| Thunder -14.5 | Thunder -1100 / Suns +700 | 215.5 o/u |
OKC (64-18) is the defending champion, the No. 1 Western Conference seed for the third straight year, and leads the NBA in both net rating (+11.1) and defensive rating (107.7). The Suns (45-37) punched their ticket through the play-in with a win Friday but went just 3-2 against OKC in the regular season. Phoenix did cover 3-2 ATS in that head-to-head matchup, including 2-1 in Oklahoma City, making the massive spread worth scrutinizing.
The Suns showed grit in the play-in and went 2-1 ATS in OKC during the regular season, suggesting they can keep games closer than a 14.5-point spread implies. Mark Williams's questionable status with foot soreness is the key variable — if he cannot play, OKC's paint dominance becomes even harder to contain.
BEST BETS:
- Suns +14.5 — Phoenix covered 2-1 ATS in Oklahoma City during the regular season and enter with momentum after a convincing play-in win. A spread this large in a playoff opener often provides value for a team with this level of regular-season ATS performance.
- Under 215.5 — OKC owns the best defensive rating in the NBA at 107.7 and held opponents to historically low efficiency all season. A Suns team that may be without its starting center figures to struggle offensively in this environment.
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