To find if the Under 3.5 bet is a value bet, we need to compare the implied UNDER 3.5 bookmaker probability with calculated and validated Surebet probability for the same. The odds for this outcome are averagely 1.1865671641791 with an implied bookmaker probability of 84.28%. The calculated Surebet probability for the Under 3.5 outcome for this Russia vs Slovakia match is 68.99%, meaning this bet is not a value bet. In case you place this bet, you may be about to lose expected value by -15.29%Expected Value, EV(UNDER 3.5), for a UNDER 3.5 result for this Russia vs Slovakia match is calculated as follows: Let P(UNDER 3.5) be the probability of winning this bet, P(0) be the probability of losing this bet. Also assuming that your stake is 100 then the Expected value is; P(UNDER 3.5) * 100* 1.1865671641791 where 1.1865671641791 are the decimal odds for this outcome. Using this formula then you should get the expected value for a UNDER 3.5 for Russia vs Slovakia, EV(UNDER 3.5) to be 68.99% * 100 * 1.18, which translates to 50.85. This is a positive Expected Value thus further vaidating this bet mathematically.Russia and Slovakia are expected to score a number of goals in this match. I do not, however, see a situation where they can score more than 3 goals. They have proved in the past that they lack the capacity to stage consistent attacks with shots on target against each other. An under 3.5 prediction for this match is just fine. We used the 3 main prediction models to find the validity of a under 3.5 in this Russia vs Slovakia match. The Monte Carlo simulation prediction model indicated a 85.71% probability for a UNDER 3.5 outcome. The ELO Ratings model came through with a 69.38% probability for the same outccome. The third model, Poisson probabilites prediction model showed there's a 51.88% chance for a under 3.5 outcome. This Russia vs Slovakia match has a few other bets that have been validated by all the 3 models. Keep reading to find them all.