"A" rated books
nitrogensports.eu A+ (2013)  
betcoin.ag A (2013)            

"B"rated books
mBet.io B (2017) Horse racing.
betbtc.co B- (2014)
      
"C" rated books
anonibet.com  C (2011)
cloudbet.com C- (2013)
fortunejack.com C- (2019) sportsbook, (2014) casino.      
playbetr.com C- (2019)
stake.com C- (2019) sportsbook, (2014) casino.

"D" rated books  
1x2coinsportsbook.com D+ (2018)
bitgame.online D+ (2017)        
coinbet24.com D+ (2015)
jetwin.ps D+ (2013)
parlayplus.com D+ (2019)    
1xbit.com D (2016)
betmatch.io D (2020)
betroar.io D (2020)
match365.com D (2019)
wink.org D (2019)  
kawbet.com D- (2020)
dbet.io D- (2019)  


Exchanges
exbet.io (2019)
fairlay.com (2014)
degens.com (2020)
sportx.bet (2019)

Prediction Markets
augur.net (2015)
betmoose.com (2014)
predictious.com  (2013)

Mutual Betting
onehash.com (2015)

Brokers
asianconnect88.com (2014)
betinasia.com
odsy88.com (2019)


"F" rated books
Anybet.eu .
Ball2Win F .
Betbit
BetCas F .
betking.io sportsbook closed Nov. 2018.
Betlake.com
betmatch.is closed 2018.
BetVIP - closed 6/12/15
Bitbook F closed.
Bitbm F .
Bitcoinsport F closed
Bitcoinlivebets F closed
bitsport.bet closed 4/11/18
Blockbet F closed
BTCBonusBook (2015).
Casinoco (2015).
Coinbet F
Coindrafts F (2014) closed.
DirectBet closed 5/21/17
Ghostbook (TOR)
Gobetgo F (2013)
Malubit (2019)
Powerbet F (2016)
Sportbet.im F closed.
StakeBTC F closed
Webetcoins F (2014) closed.
webet7.com closed

Not rated.
AceDbets.io


bitcoinrush.io (2013)  currently offline. Further information to be posted soon.


Sportsbooks ranked by market share. The top 4 books take up almost all of the bitcoin sports betting:

1. Nitrogensports.eu (A+)
2. 1xbit.com (D)
3. Cloudbet.com (C-)
4. Betcoin.ag ( A)


email: support@nitrogensports.eu and support ticket........Reduced juice: Yes
email: contact@betcoin.ag and support ticket.................Reduced juice: Yes
email: admin@bitcoinrush.io..........................................Reduced juice: Yes.
email: customer_support@mbet.io................................. Reduced juice: No
email: info@anonibet.com.............................................Reduced juice: No
email: support@jetwin.ps .............................................Reduced juice: No
email: support-en@1x-bit.com ......................................Two sets of lines.
email: support@cloudbet.com .......................................Reduced juice:Yes

* Reduced juice is better than 1.91 (-110).






 





-----------------------------------------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------------------------------------------



Maximum grade based upon time in business:

A - 2 years
B - 1 year
C - 3 months
D - 1 month

who can sell me 1xbit account.
 I can buy 1xbit accounts  at high loss
send me a private message

sportsbet isn't rated because they accept fiat currency but this is bothersome since sportsbet hasn't replied in their thread or the scam accusation thread.

https://bt.irlbtc.com/view/5263445.0

Updated. Thanks Degens.

Nitrogensports has free and bet slip buy in NBA playoff bracket contests starting August 15th.  https://blog.nitrogensports.eu/nitro-brackets/

Feel free to post any other NBA playoff contests.

Anonibet confiscation.

Every rating guide at BCT has Nitrogen #1.

Flagship- Here are the 3 other sportsbook rating guides at Bitcointalk. All have Nitrogen #1. Betcoin isn't a consensus #2 but they are #2 if averaged.

Ryan K's guide -
Quote
#1   nitrogensports.eu
#2   bitcoinrush.io
#3   betcoin.ag
#4   cloudbet.com
#5   sportsbet.io
#6   fairlay.com
#7   anonibet.com
#8   coinbet24.com
https://bt.irlbtc.com/view/577102.0


FrueGreed's guide
Quote
(4.13) NitrogenSports.eu      
(3.95) Fairlay.com      
(3.88) Bitcoinrush.io      
(3.69) Sportsbet.io      
(3.07) Betcoin.ag      
(3.00) Cloudbet      
(2.58) 1xbit      

https://bt.irlbtc.com/view/1820529.0

sportsbettor's guide
Quote

The first 10 Sportsbooks of our Rating at the moment looks like this:

Nitrogen Sports
BetCoin
Cloudbet
Sportsbet.io
1xBit
Bitcoin Rush
mBit Sports
JetWin
Fairlay
Anonibet

https://bt.irlbtc.com/view/5158369.0

The NFL season is around the corner. Feel free to post about books running Survivor Contests.

Thanks for this review of the books. I'm sure each person will have their opinions as sports betting can be a fairly toxic industry but I can see the work you put into this and it at least gives a general feel for the market.