← Forecasts for Jan 24

2023-24 · Regular Season · Final

Portland Trail Blazers at Houston Rockets

Wednesday, January 24, 2024 · tip-off time not recorded

POR 3–2@HOU 1–0 records going into the game NBA.com recap ↗

Win probability as a share of the court: POR 30 percent, HOU 70 percent. POR Trail Blazers 30% proj. 109 · final 137 HOU Rockets · home 70% proj. 117 · final 131
Each team's share of the floor is its pregame win probability. The line starts at midcourt and moves to the split.

Forecast and result

TeamProjectedFinalDifference
POR Portland Trail Blazers 109 137 +28
HOU Houston Rockets (home) 117 131 +14

Forecast: Houston Rockets to win, 70% win probability, projected margin 8.

Inside the Forecast

How the inputs are built
What the model received
InputPORHOU
Elo ratingMargin-of-victory Elo; 1500 is average. 13171455
Elo gap, home minus road, incl. home court +208
Season scoring marginPoints per game, blended with last season early in the year. −9.4+0.3
Games played this season 4342
Offensive rating, last 10Points scored per 100 possessions. 105.0108.7
Defensive rating, last 10Points allowed per 100 possessions; lower is better. 121.8117.5
Combined pace, last 10Possessions per game, both teams. 99.7
Rotation points missingPoints per game of rotation players listed Out or Doubtful. 13.00.0
Rest days 13
Second night of a back-to-back YesNo

This forecast can't be broken down exactly: the model version that made this forecast is not available. Explanations are shown only when the model that made a forecast can be rebuilt and reproduces it. How explanations are checked

Built from the box scores

How the breakdowns work

Where each input came from. Open a row to see the games and box-score stats behind it. A breakdown is shown only when rebuilding it from the stored stats gives exactly the number the model received.

Elo ratingPOR1317HOU1455

Updated after every game from the final score only: wins, losses and margin. Each season starts by keeping 75% of last season's distance from the 1500 average.

POR1317

1500
  1. Ended last season at 1315 → started this one at 1362
  2. First 33 games: −40.3
  3. Last 10 games: −4.8
  • L@DAL103–139−8.8
  • W@BKN134–127+15.8
  • L@NYK84–112−3.7
  • L@OKC77–139−5.6
  • L@MIN93–116−3.0
  • LPHX116–127−6.5
  • WBKN105–103+5.9
  • WIND118–115+9.2
  • L@LAL110–134−7.4
  • L@OKC109–111−0.7

HOU1455

1500
  1. Ended last season at 1333 → started this one at 1374
  2. First 32 games: +112.4
  3. Last 10 games: −32.1
  • LMIN95–122−17.3
  • WMIL112–108+8.0
  • L@MIA113–120−4.5
  • L@CHI119–124−5.0
  • W@DET112–110+2.1
  • L@BOS113–145−5.8
  • L@PHI115–124−4.2
  • L@NYK94–109−5.1
  • WUTA127–126+4.4
  • LBOS107–116−4.7
Season scoring marginPOR−9.4HOU+0.3

Points scored minus points allowed per game this season, mixed with last season's margin until 20 games are played.

POR−9.4

Scores 107.6, allows 117.0 over 43 games: −9.4 a game.

HOU+0.3

Scores 112.5, allows 112.1 over 42 games: +0.3 a game.

Offensive rating, last 10POR105.0HOU108.7

Points scored per 100 possessions. Split into the four factors: right of center helps the team, left hurts, in points per 100 possessions compared with the league average (2023-24 to date: 115.2).

POR105.0scored, −10.2 vs league

FactorPORLeaguehurtshelpsPts
Shooting (eFG%)49.4%54.7%−8.1
Turnovers (TOV%)11.8%11.6%−0.2
Offensive rebounding (OREB%)21.5%24.4%−1.3
Free throws (FTM per FGA)0.1980.205−0.2
Everything else−0.4

HOU108.7scored, −6.5 vs league

FactorHOULeaguehurtshelpsPts
Shooting (eFG%)49.3%54.7%−8.2
Turnovers (TOV%)10.2%11.6%+2.0
Offensive rebounding (OREB%)23.4%24.4%−0.5
Free throws (FTM per FGA)0.2040.205−0.0
Everything else+0.2
Defensive rating, last 10POR121.8HOU117.5

Points allowed per 100 possessions, built from what opponents did in those games. Bars point right when the defense held opponents below average. Split into the four factors: right of center helps the team, left hurts, in points per 100 possessions compared with the league average (2023-24 to date: 115.2).

POR121.8allowed, +6.6 vs league

FactorOpponentsLeaguehurtshelpsPts
Shooting (eFG%)59.9%54.7%−7.8
Turnovers (TOV%)11.9%11.6%+0.5
Offensive rebounding (OREB%)23.3%24.4%+0.5
Free throws (FTM per FGA)0.2220.205−0.5
Everything else+0.7

HOU117.5allowed, +2.3 vs league

FactorOpponentsLeaguehurtshelpsPts
Shooting (eFG%)56.3%54.7%−2.3
Turnovers (TOV%)11.4%11.6%−0.3
Offensive rebounding (OREB%)23.4%24.4%+0.5
Free throws (FTM per FGA)0.2230.205−0.5
Everything else+0.4
Pace, last 10average 99.7

Possessions per 48 minutes. The model uses the average of the two teams. Faster games mean more points for both sides, so pace mostly moves the projected total, not the margin.

POR 99.2 and HOU 100.1 → average 99.7 (league 2023-24 to date: 99.8)

Rotation points missingPOR13.0HOU0.0

Points per game of rotation players (two or more of the last 10 games this season, 15+ minutes) listed Out or Doubtful on the official injury report.

POR13.0pts/g missing

PlayerPtsMinGames
Shaedon Sharpe13.026.84

Source: official injury report, 2024-01-24 17:30 ET. 11 rotation players.

HOU0.0pts/g missing

Every rotation player was available.

Source: official injury report, 2024-01-24 17:30 ET. 9 rotation players.

RestPOR1 daysHOU3 days

Days since the team's previous game, capped at 5. One day means the second night of a back-to-back.

POR1day, back-to-back

Last played Jan 23 against OKC.

HOU3days

Last played Jan 21 against BOS.

The last 10 games behind these numbers, box-score totals

POR

DateOppScoreFG3PFTTOVOREBOffDefPace
Jan 23@OKC109–11137-8618-3917-211912107.9108.8101.5
Jan 21@LAL110–13442-909-2917-201210108.9131.4101.5
Jan 19IND118–11542-844-1230-3599118.0111.7101.5
Jan 17BKN105–10342-869-2712-14910118.0114.489.5
Jan 14PHX116–12740-8920-4216-221312119.6133.796.0
Jan 12@MIN93–11630-7710-2823-3419793.9117.299.0
Jan 11@OKC77–13928-10111-4910-1691375.5137.6101.5
Jan 9@NYK84–11233-866-2912-1815888.4116.795.5
Jan 7@BKN134–12745-9520-3824-3096125.2118.796.9
Jan 5@DAL103–13939-9513-4012-17181094.5127.5109.0

HOU

DateOppScoreFG3PFTTOVOREBOffDefPace
Jan 21BOS107–11641-9410-3515-221511101.9110.5105.0
Jan 20UTA127–12650-11713-3914-22723117.6114.598.7
Jan 17@NYK94–10935-848-3016-1910698.9114.795.0
Jan 15@PHI115–12444-888-2719-321316119.8127.896.5
Jan 13@BOS113–14540-997-3026-301215104.6135.5107.5
Jan 12@DET112–11041-908-3022-25910113.1111.199.0
Jan 10@CHI119–12448-10111-4512-20149107.2111.7100.5
Jan 8@MIA113–12037-8814-4125-281212116.5122.497.5
Jan 6MIL112–10836-8313-3427-32107112.0106.9100.5
Jan 5MIN95–12236-9012-3211-1515595.0119.6101.0

Off and Def are points scored and allowed per 100 possessions in each game; their averages are the 10-game ratings above. OREB is missing (–) where the source data didn't record it.

The result against the forecast

2023-24 surprise games
30%
pregame chance the forecast gave POR, the winner
the forecast favored HOU
14 pts
margin miss
forecast +8, actual −6 for HOU
30th
most surprising result of 2023-24
of 1,312 graded games
393rd
largest margin miss of 2023-24
outcome surprise 1.20 nats

Surprise is measured against this model's forecast, not against what other observers expected. Outcome surprise is −ln(winner's pregame probability): 0.69 for a coin flip, 2.3 for a 10% winner.

Team box score

What happened in the game. These numbers are not used by the forecast, and they are not offered as the reason it missed.

Team statPORHOU
Final score137131
Field goals50–98 · 51.0%50–94 · 53.2%
Three-pointers15–35 · 42.9%12–36 · 33.3%
Free throws22–24 · 91.7%19–22 · 86.4%
Rebounds4837
Assists3129
Turnovers128
Steals68
Blocks46

Where the forecast differed from the result

MeasureForecastActualActual − forecast
Home margin (HOU)+8−6−14
Total points226268+42
POR points109137+28
HOU points117131+14

Score by quarter

TeamQ1Q2Q3Q4OTFinal
POR3027412613137
HOU313233287131

Recent form before this game

Portland Trail Blazers

DateOpponentResult
Jan 23 at OKC L 109–111
Jan 21 at LAL L 110–134
Jan 19 vs IND W 118–115
Jan 17 vs BKN W 105–103
Jan 14 vs PHX L 116–127

Houston Rockets

DateOpponentResult
Jan 21 vs BOS L 107–116
Jan 20 vs UTA W 127–126
Jan 17 at NYK L 94–109
Jan 15 at PHI L 115–124
Jan 13 at BOS L 113–145

Previous meetings

DateMatchupScore
Feb 26 2022-23 HOU at POR HOU 114 – 131 POR
Dec 17 2022-23 POR at HOU POR 107 – 95 HOU
Oct 28 2022-23 HOU at POR HOU 111 – 125 POR
Mar 26 2021-22 HOU at POR HOU 115 – 98 POR
Mar 25 2021-22 HOU at POR HOU 125 – 106 POR