NBA - 9 years ago

Cleveland Cavaliers at Golden State Warriors: Game Two – What is “The Crowd” Saying?

Jun 2, 2016; Oakland, CA, USA; Cleveland Cavaliers forward Kevin Love (0) and Golden State Warriors forward Draymond Green (23) go for a rebound in game one of the NBA Finals at Oracle Arena. Mandatory Credit: Bob Donnan-USA TODAY Sports
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NBA Finals: Cleveland Cavaliers @ Golden State Warriors, 8:00pm ET on ABC

Golden State leads the series 1-0.

Under.  Again.  Really?!!

The Crowd gives us a 45% chance of seeing a close game where the winner is decided by less than 6 points.  Let’s hope that happens – we’ve already had too many games during the playoffs where the losing team has capitulated with more than 10 minutes left to get some rest for the next game.

The Crowd thinks there is a 70% chance that less than 209 points are scored.  Going back to the conference finals, The Crowd is 9-3 on the over/under when consensus is 70% or greater.  We’ve been leaning heavily on the under and it doesn’t look like we are the only ones to notice this.  Public wagers are on the over but the line has been coming in over the last few days, a sure sign that professional gamblers are on the under.

http://www.covers.com/odds/linehistory.aspx?eventId=915362&sport=NBA

Tyronn Lue has asked James to play more up tempo (http://www.sportsline.com/nba/game-forecast/NBA_20160605_CLE@GS/ , http://espn.go.com/nba/playoffs/2016/story/_/id/15936845/lebron-james-cleveland-cavaliers-told-coach-tyronn-lue-play-faster-pace-golden-state-warriors-nba-finals ).  This puts some doubt in our predictions, but our contest leaders, who follow the news more closely than us, are still hard on the under.

Good luck tonight!

Spread, Total and Moneyline Crowd sentiment

Bookmaker prices versus Crowd sentiment.

   bookmakers ( as of 9:00am ET ) What the Crowd is saying?
CLE GS
Spread +6.5 -6.5 CLE +6.5 medium     (55.7%)
Moneyline +210 -250 no value
Total 209.0 Under strong     ( 70.7% )

Crowd sentiment going into tonight’s game across all wagers.

under 209.0 points over 209.0 points Total
CLE wins 25.1% 7.0% 32.1%
GS wins by less than 6.5 points 18.5% 5.0% 23.5%
GS wins by more than 6.5 points 27.1% 17.2% 44.3%
total 70.7% 29.3% 100.0%

chart 18

chart 19chart 20

Comparison of the Crowd to other forecasts

 Spread wager forecasts

source crowd hot hand contest lead computer model crowd by wager analyst
The Crowd’s Line CLE +6.5 GS -6.5 GS -6.5
SportsLine GS -6.5 GS -6.5 GS -6.5
ESPN CLE +6.5, CLE +6.5 GS -6.5
Covers CLE +6.5 GS -6.0 GS -6.5
Vegas Insider GS -6.5
OddsShark CLE +6.5 GS -6.5
YahooSports

 Total points wager forecasts

source crowd hot hand contest lead computer model crowd by wager analyst
The Crowd’s Line under 209.0 under 209.0 under 209.0
SportsLine over 209.0 over 209.0
ESPN Under 209.0
Covers under 209.0 under 209 over 209.0
Vegas Insider over 209.0
OddsShark Under 209 over 209
YahooSports

 Moneyline wager forecasts

source crowd hot hand contest lead computer model crowd by wager analyst
The Crowd’s Line No value
SportsLine GS -250
ESPN
Covers
Vegas Insider CLE +210
OddsShark
YahooSports GS

 Forecast Details

The Crowd’s Line: Equal weighting [ take the under, take CLE +6.5 ]

  • crowd size:  1,416 predictions
  • spread line forecast: GS -4.0
  • standard deviation of spread line: 9.7
  • total points forecast: 203.9
  • expected value of $1 bet on CLE +6.5 spread is $0.057

preferred wager for maximum expected value: Take the under for expected payoff on $1 wager of $0.40 and an estimated Sharpe ratio of 0.44.

preferred combo wager for maximum estimated Sharpe ratio: same as simple, take the under

Hot Hand [take to under, take GS -6.5]

  • Experts on CLE and GS ( top 10% spread pickers over last three games for the two teams )
  • crowd size:  71 predictions
  • spread line forecast: GS -8.4
  • standard deviation of spread line: 6.2
  • total points forecast: 206.3
  • expected value of $1 bet on GS -6.5 is +$0.20

Contest Leaders [take to under, take GS -6.5]

  • Leaders in the NBA Finals contest.
  • crowd size:  7 predictions
  • spread line forecast: GS -8.7
  • standard deviation of spread line: 6.8
  • total points forecast: 205.0
  • expected value of $1 bet on GS -6.5 is +$0.08

SportsLine  [ model: GS-5, over, GS ML, public money: GS -6.5, over, journalist: over ]

  • Computer simulation projected final spread: GS -12,  take GS-6.5
  • Computer simulation projected final total: 218, or take the over.
  • Computer simulation projected moneyline: take GS
  • Public Wager Side: 57% take GS -6 , 71% take the over ( reverse line movement on the under from 210.5 to 209 )
  • Journalist pick ( Zack Cimini ): Over 207.5, .

Rational: “Cleveland coach Tyronn Lue reportedly told James to pick up the pace and play faster in Game 2, which figures to help the Over. Curry and Thompson cannot play any worse, another factor that bodes well for the Over.”

http://www.sportsline.com/nba/game-forecast/NBA_20160605_CLE@GS/

  • SportsLine Crowdsourcing with The Crowd’s Line tool: NOT POSTED

ESPN:  [ both models take CLE+6.5 and under. Crowdsource spread by wager side: GS. ]

  • Team Rankings: GS-5.9, total = 208.3:  take CLE+6.5, under.
  • Number Fire: GS -5.0, total = 203:  take CLE +6.5 and under.
  • Public consensus pick: 53% take GS and lay the points.

Covers:  [ general crowd says GS -6, over.  expert crowd has CLE +6.0, -. ]

  • Equal weighting

crowd size: 700

crowd pick: 57% take GS and the points, 56% take the under

  • Hot Hand

Crowd size: 22

Crowd pick: 58% take CLE and the points,  take the under.

  • Article prediction: GS wins 109 to 101.  Take the over.

Rational: “The Warriors have won six straight games against the Cavaliers dating back to last season’s Finals.”

Vegas Insider:  [ GS -6.5, over, CLE moneyline  ]

  • Where is the public offshore money? 76% over, 63% GS-6.5, 71% CLE moneyline

Odds Shark: [ Wagers say GS -65. and over, computer simulation says to take CLE +6.5 and the under. ]

  • sports book money consensus: 53% take GS -6.0, 57% take the over 209
  • computer simulation: CLE +6.5., take under 209.0

Yahoo Sports:  [ Crowd, 69% think GS will win. ]

  • 69% of crowd says GS will win.
  • Crowd size: 20,766 picks

How did the Crowd do last time? 

The Crowd heavily favored the under at 208.0 on Game 1 and had a weak preference for CLE +6.5.  Under was correct, CLE +6.5 was off as the GS bench pulled away.

 

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