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Boston Celtics at Toronto Raptors, NBA forecast

FinalNBC Sports BO, NBA League Pass, Sportsnet

Away

Celtics

15-9

121–113

at

Home

Raptors

15-10

BOS 58%TOR 42%

You didn't pick this one.

Scotiabank Arena · NBC Sports BO, NBA League Pass, Sportsnet

Win probability

Starts from the pregame forecast, then moves with every score and the time left. Above the line favors TOR; hover for each play.

TOR favored BOS favored118 scoring plays
Q1Q2Q3Q4TOR50%BOS

Game center

From the ESPN box score.

Top performers

Celtics
Raptors

Last plays

  • Q40.0End of Game121–113
  • Q40.0End of the 4th Quarter121–113
  • Q49.8Payton Pritchard enters the game for Baylor Scheierman121–113
  • Q49.8Anfernee Simons enters the game for Neemias Queta121–113
  • Q49.8Scottie Barnes turnover121–113
  • Q49.8Scottie Barnes offensive charge121–113
  • Q414.3Raptors offensive team rebound121–113
  • Q415.0Derrick White blocks Brandon Ingram 's 25-foot three point pullup jump shot121–113
  • Q418.9Baylor Scheierman enters the game for Payton Pritchard121–113
  • Q418.9A.J. Lawson enters the game for Jakob Poeltl121–113

Turning points

The 5 plays that swung the win chance most, each judged at its own moment: the chance with the score just before it against just after.

  1. Q411:17A.J. Lawson makes 25-foot three point shot (Jamal Shead assists)BOS 97 – 96 TOR · TOR 30% → 42% +12
  2. Q48:14Scottie Barnes makes 1-foot two point shotBOS 99 – 102 TOR · TOR 52% → 61% +10
  3. Q47:51Derrick White makes 23-foot three point jumperBOS 102 – 102 TOR · BOS 38% → 53% +15
  4. Q47:15Payton Pritchard makes 24-foot three point jumper (Derrick White assists)BOS 105 – 102 TOR · BOS 53% → 69% +15
  5. Q44:17Payton Pritchard makes 26-foot three point jumper (Derrick White assists)BOS 110 – 104 TOR · BOS 72% → 87% +15

The pick

Reconstructed from what was known before the game: the ratings at that point and the closing line.

Celtics 58%

LeanHit
BOS 58%TOR 42%

Forecast Elo ratings alone

How often that comes true: NBA favorites the forecast gave 55–60% have won 59.4% of 433 graded games.

Market
BOS -3.5
ML BOS -155 / TOR +130
Pre-line forecast
BOS 65%
Elo + market-implied
Elo ratings
BOS -4
BOS 65%
Ratings vs. market
+6.5 pts
BOS: Elo 64.8%, market 58.3%
Fair odds
BOS -140
TOR +140 · the forecast as odds, no margin
Pregame projection
BOS 114.0 – 110.5 TOR
Posted spread, posted total 224.5

How the number is built

Elo inputs in rating points (higher favors that team; 25–28 Elo is about a point of spread in football and basketball), then how the pieces combine.

FactorBOSTORWhy
Team rating16451453Elo entering the game; 1500 is league average
Home field—+36Worth 36 Elo in the NBA
Lineups−16+34BOS: Weaker than its recent lineups · TOR: Stronger than its recent lineups (from the box score)
Elo ratingsBOS +106 EloBOS 64.8%
Market-implied ratingsBOS 64.5%Team strength as past closing lines priced it, same game context
Pre-line forecastBOS 64.5%10% Elo, 90% market-implied (log-odds blend)
ForecastBOS 58.3%Follows the market (vig removed): in testing, adding the ratings made it less accurate

Tale of the tape

This season coming into the game, regular season, each number with its league rank (the longer the bar, the higher). Home and road: the host's record at home against the visitor's on the road. Opponent Elo: how strong the teams each has played are, 1st the toughest. Offense and defense are points per 100 possessions, which sets aside how fast a team plays.

Try another venue →
Boston Celtics and Toronto Raptors compared, with each team's league rank
BOSStatTOR
17th of 30117.1Points scored116.518th of 30
3rd of 30110.5Points allowed113.57th of 30
5th of 30+6.6Margin+3.012th of 30
4th of 30119.4Offense rating113.814th of 30
16th of 30112.6Defense rating110.87th of 30
30th of 3098.2Pace101.816th of 30
2nd of 308–2Last 106–410th of 30
10th of 306–5Road vs home8–411th of 30
19th of 301486Opponent Elo146729th of 30
2nd of 301645Elo rating145322nd of 30

Who's playing

Who sat out, from the box score, and what each absence cost against the lineups the team had been playing.

All player ratings →

Celtics

−16 Elo

Full strength: nobody who matters sat out.

Raptors

+34 Elo

Full strength: nobody who matters sat out.

Rating history

Each team's Elo over the last two seasons. Hover or drag to compare on any date.

CelticsRaptors
1400150016001700league averageNovJanMarMayJulSepNov

Against the line

How each team has done against the closing spread and total, coming into this game.

This seasonBOSTOR
Against the spread13–1011–13
Last 108–23–7
Favorite7–67–9
Underdog6–44–4
Overs–unders11–1210–14
Overs–unders, last 106–43–7

Against each game's closing line. Books set every line knowing these records: across 3,901 past games, the team with the better record against the spread so far that season covered 51.2%, short of the 52.4% a standard −110 bet needs, and over/under streaks held 48.0% of the time. They describe the past.

Head to head

BOS 7–1 TOR in their last 8 meetings; the forecast called 7 of 8.