
In 2017, I was the GM of Fantasy Alarm. We were redesigning our lineups pages. I asked the question, “what are the most important statistics for us to show to daily fantasy baseball players?” The answer I got SHOCKED me. I have been playing fantasy baseball since 1989. Our lead baseball analysts said “whoa baaa”. WTF is Whoa Baaa?
He started to explain it and all I heard was Peanuts’ teacher. Then I realized it was wOBA. It was a weighted version of on-base percentage. Got it.
Weighted Runs Created Plus (wRC+) is a bit more complicated. It was a metric that was created to measure the total hitter as compared to others in the league. wRC+ also takes into account ballpark factors. Another great feature of the metric is that it is normalized. It is easy to see where the hitter stands in the current league of hitters since it sets a hitter’s wRC against 100 as the league average.
Simple? Yeah!
Weighted On-Base Average (wOBA) is an advanced stat. It was a weighted version on on-base average (walks+hits+sacrifice hits+ sacrifice flys+hit by pitch Divided by plate appearances). A smarter version of on-base percentage. wOBA gives more weight to more valuable plays. Walks and HBP count too, but you get more for the number of bases that you accrue with a hit. A home run is worth more than a triple. A triple is worth more than a double. A double is worth more than a single.
Batting average (BA) treats all hits the same. An infield hit is equal to a 500-foot homer. Slugging percentage (SLG) tries to fix that but doesn’t give enough to doubles, triples, and homers to reflect the runs they produce. wOBA solves that problem by assigning each event a “true value” based on long-term Major League run data. wOBA tells you how valuable a hitter is every time he steps into the box.
As we showed in the BABIP explanation, you can get an edge if you don’t rely only on traditional stats. We taught you about “luck” that could be determined via this stat. Well, wOBA also cuts through the noise. It blends plate discipline, bat skills and power into one single number. The average wOBA for a player is wOBA for 2025 was only .313. The average is usually close to .320. Players over .370 wOBA are elite.
When you add handedness to this metric (wOBAvR and wOBAvL) to determine how a hitter handles different handed pitchers is critical especially for analyzing single game performance for daily fantasy sports.
This is how it is most used for pitchers as well. When we use handedness for pitchers and can show those two metrics for the lineup they will face, we can identify the hitters who are most likely to perform on that night.
Now let’s talk about Weighted Runs Created Plus (wRC+). It is a way to compare hitters across teams, ballparks, and even eras. It answers the question, “how good is this player really?” How can it do that you ask?
So the reason that this is with wOBA is because it is used in the formula for weighted runs created (wRC). The definition from FanGraphs is:
wRC= [wOBA scale(wOBA−lg wOBA)+lg R/PA]×PA
Where:
Then you have to normalize it to 100 to get wRC+. Now it is usable. It adjusts for ballparks, which is huge. A hitter playing in Seattle or Detroit has a harder environment than one in Cincinnati or Colorado. wRC+ addresses that.
The beauty of wRC+ is that it removes context. If you want to compare two hitters quickly, this is a good starting point. The stat tells you how much better or worse the hitter is than the league average, regardless of where he plays.
If a player has a 128 wRC+, he’s clearly an above-average hitter even if his counting stats are not great. If another hitter has a paltry 88 wRC+, it means his production is below average even if he is hitting home runs early in the season. By definition, 100 is average. For qualification of what the numbers mean to you: Aaron Judge led the league with wRC+ of 203. All the top 25 were greater than 130. So, greater than 120 is solid.
Chocolate and peanut butter? Maybe not, but when you put wOBA and RC+ together, you get a complete picture of hitting skill. wOBA shows how much potential the hitter delivers every time he steps to the plate. wRC+ shows how he compares to the league once you adjust for ballpark and league average compared to any era. Use both in your draft prep.
Look, you cannot make every drafting decision or in-season decision based on metrics. The more at bats or innings of players you watch, the better you will know if they are seeing the ball well or throwing it to their spots with movement. In the end that is what makes this fun. The games need to be part of this or you are just playing a stats game. That said…
wOBA is very effective in daily fantasy sports or if you go to the detail of breaking down your start sits for starting pitchers. This is especially true when you add handedness into your study regimen.
wRC+ takes wOBA to another level by first taking out the context of the numbers and then normalizing them versus the rest of the league. Hope this helps to understand some of the helpful stats in the game.
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