RE24 is quite straightforward to use for hitters if you are already knowledgeable about runs above average numbers like wRAA. With league typical set to zero, any positive value is that many runs above average and any negative value is that lots of runs under average. RE24 includes batting and involving at bat baserunning (stolen base, wild pitches, etc), so if a player has 30.5 RE24, so they had been about 30 runs better than the average player could have been if given the same opportunities. Each win is worth between 9 and 10 runs depending upon the calendar year, which means you can convert RE24 into wins by dividing it by that year’s runs per win. On FanGraphswe predict this REW instead of RE24.
Bear in mind that RE24 is supplying you with circumstance adjusted conducts, and when studying this particular statistic you’re measuring a player’s performance below or above average given the context in which they were put. If you want to compare their context neutral stats using their circumstance adjusted stats, a simple trick is to compare RE24 into Batting Runs plus wSB (or OFF minus UBR). This will allow you to observe how well or poorly calibrated a hitter’s performance was, but keep in mind, context dependent numbers are less predictive of future performance than circumstance neutral ones.
For pitchers, utilizing RE24 from the speech of RA9 or ERA is a bit trickier. You could simply learn how to think in terms of runs above average for pitchers just like you do to hitters, however, the alternative is to consider about 0.46 runs each inning and subtract the pitcher’s RE24 complete to see it in terms of runs allowed. Then if you handle that new number as runs enabled and multiply be 9 and divide by innings pitcher, then you’ll wind up with something similar to RE24 on a 9 inning scale. Bear in mind that RE24 relies on the conduct environment and playground so this won’t be perfect. Remember also that while allowing runs is poor, a favorable RE24 is great since it’s a step of runs greater than average for pitchers. For starters, you will not typically see dramatic differences, but for relievers you might.
Furthermore, whilst RE24 controls for outs and baserunner positioning, it does not make any adjustments based on the score of the game and also the inning, meaning that a bases loaded situation will be exactly the same in case the score is tied in the ninth inning or when the difference is seven runs in the fourth. To put it differently, while it controls to the probable number of runs, it doesn’t control for how important those runs might be from the context of the game. RE24 also doesn’t incorporate any defensive value. All offensive events go to the hitter (or baserunner on steals) and all defensive events are credited to the pitcher. So while you can swap in RE24 to get Batting Runs + wSB, you cannot look at a player’s RE24-Wins and telephone that WAR because it doesn’t incorporate all baserunning, any defense, any positional modification, or replacement degree.

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