There are some fantasy football players that believe that the lineup you pick can lose you a game just as much as it can win a contest. Having a player give you a consistent performance week after week can be considered more valuable than a player who goes off every third week and then takes two weeks off between those fantastic performances. Consistency has a value, and it does not take much of a leap to understand that players that you can rely on for solid games when you need them (such as in your postseason) are a huge advantage.
Baseball has a term called "Quality Starts" for pitchers, which is a statistic that represents how often a starting pitcher will put up a good (not great, just good) performance in a given game. The bar is set neither high nor low (six innings pitched, three earned runs or fewer) so as to gauge a decent performance. The theory behind it is that if your pitcher gives you a Quality Start, your team has a fighting chance to win a given game.
So now we need to translate this to football. What is "quality" for each position? How do we define a "Quality Start" for quarterbacks or running backs or any other position? Looking back at the 2015 season, I decided to take the #12 RB for the year (Darren McFadden, 160.28 fantasy points) and take that fantasy total and divide it by 16 for a per game average. Now a case can be made to argue against doing this. I did not account for missed games or a per-start performance metric, but I believe that the numbers will get averaged out by doing this method. Also, taking RB12 seems a bit arbitrary, but if you are looking for a bare minimum of quality, the 12th RB should be the "worst starter" in your fantasy league as a RB1 and a great RB2.
So now we move on to the next question - one of quantifying the quality. At what point do we decide whether or not a running back has given us a quality performance? Here is where it gets a bit murky, but looking at the distribution of RB performances by starters over the season and it becomes evident that the using the 12th RB average and adding or subtracting a percentage gives us a good range for a RB Quality Start.
Using the RB Quality Start range, we can also define a bad performance or an excellent performance as either falling below or exceeding the Quality Start range. Table 1 gives us the fantasy points that it takes to fall in each of the three areas:
|RB Start Type||Fantasy Points|
|Bad Start||0 to 7.5|
|Quality Start||7.6 to 12.5|
Table 1: 2015 RB Quality Start and Fantasy Point Ranges - Standard Scoring
Table 2 shows us the breakdown of all the Top 50 RBs and how many of each type of start resulted for each: