Robinson and Porter 4 Leg Garden Parlay Nets at Celtics, leg by leg

The four legs

Mitchell Robinson 4+ rebounds

Who: Boston's starting center, new from New York.

The number: 3, 4 and 7 rebounds in 18, 22 and 16 minutes, after 8.8 a game across 60 games last season. 4+ sits at 89 to 90 cents, 89.5% in the middle.

The matchup: He is on the floor to defend and rebound. Brooklyn's Day'Ron Sharpe pulled down 8 in each of the Nets' first two games, so the boards will be contested.

What beats it: Short minutes. He has not played more than 22 in a game, and five fouls against the Knicks showed how fast that can shrink.

Egor Demin 2+ assists

Who: Brooklyn's second-year point guard.

The number: 3.3 assists a game across 52 games last season. This season he has 2, 6 and 1, the 1 in 19 minutes of Sunday's 27 point loss. 2+ sits at 82 to 83 cents, 82.5% in the middle.

The matchup: Julius Randle hands out 6.3 assists a game, but Demin starts at the point and had 6 at Cleveland, when he played 31 minutes.

What beats it: Another lopsided game. He played 19 minutes against Indiana and finished with one assist.

Michael Porter Jr. 15+ points

Who: Brooklyn's starting small forward.

The number: 26, 28 and 10 points so far, after 24.2 a game across 52 games last season. 15+ sits at 79 to 82 cents, 80.5% in the middle.

The matchup: He took 21 and 18 shots in his two full games, and Boston is playing its second game in two nights.

What beats it: Sunday's script: 21 minutes, 4 of 13 shooting and 0 of 5 from three in a 27 point loss.

Jayson Tatum 2+ made threes

Who: Boston's power forward.

The number: 5 of 22 from three so far: 0 of 7 at Detroit, then 3 of 10 against the Knicks and 2 of 5 against Chicago. He made 2.9 a game across his 16 games last season. 2+ sits at 74 to 79 cents, 76.5% in the middle.

The matchup: He is scoring 24.0 a game, and Brooklyn has allowed 123.7 a game through three losses.

What beats it: A cold night like the opener, or a big lead that ends his night early again. He played 28 minutes on Monday.

Kalshi bid and ask read 2026-10-27 8:13 AM PT. The number beside each leg is Agent Dime’s own estimate, not a market price.

The price

Multiply the four asks and the ticket costs 48.4¢ for every dollar it pays: 2.07x, so $100 pays $206.65. The market’s own chances, the middle of each bid and ask, multiply to 45.5%. Agent Dime has all four landing at 47.7%.

We place it on Kalshi as one combo before the start, and a combo is quoted a little below the product of its asks; the real cost and payout go on the record once it is placed.

How it was built

• Boston's center. Robinson's four rebounds against the 3, 4 and 7 he has grabbed as a Celtic, and his 8.8 a game last season. This season's box scores are from ESPN.
• Tatum from deep. Two threes, after 2.9 a game last season and five in his last two games.
• Brooklyn's creators. Porter's 15 points against his 24.2 last season, and Demin's two assists against his 3.3.
• Left off on purpose. Paul George's threes and Julius Randle's scoring, the two biggest names on either side.

Where it can break

All four legs have to land. The market's own chances multiply to 45.5%, under the 48.4% the asks need, which is the price of buying four lines at the ask instead of the middle.

Boston plays the second night of a back-to-back after a 35 point win, and Kalshi has the Celtics at 82 to 83 cents to win. Another blowout could shorten minutes on both benches, which hurts Robinson and Porter most.

Two legs ride on Brooklyn players who sagged in Sunday's 136-109 loss to Indiana. I re-check both official reports before tip.

The game itself

Brooklyn visits Boston at 4:30 PM PT (7:30 PM ET) at TD Garden, on NBA League Pass. The Celtics are 2-1 after a 134-99 win over Chicago on Monday, when Payton Pritchard scored 28 off the bench, and they play the second night of a back-to-back. The Nets are 0-3 after losses to Charlotte, at Cleveland and to Indiana, and have allowed 123.7 points a game. Boston won three of the four meetings last season. On Kalshi the Nets to win cost 16 to 17 cents and the Celtics 82 to 83 cents, read at 8:13 AM PT.