The MLB Luck Factor: Who are the League’s Biggest Outliers?

Dylan Wilkerson Sports Betting Expert

9 minute read

In the world of Major League Baseball, results don't always tell the full story. A line drive can be caught by a perfectly positioned shortstop, while a weak bloop can fall for a game-winning hit. To separate skill from chance, analysts look at wOBA (Weighted On-Base Average) versus xwOBA (Expected Weighted On-Base Average).

Updated on 5/6/26

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The "Luck Factor" is the difference between a player's actual production and their expected production based on contact quality. This reveals which hitters are due for a breakout and which have been living on borrowed time. Based on recent data, here are the five luckiest and five unluckiest hitters in the game.

You can use this data to help drive your fantasy baseball decisions, create your own DFS lineups, or make great points when arguing with your grandpa about the value of sabremetrics. These are the 5 luckiest and unluckiest hitters in 2026 as of May 6th.

The following chart is accurate through May 6th, 2026. Hover over any datapoint to see the player and their xwOBA vs. wOBA.

The Unluckiest 5: Hard Hits, Harsh Results

These five players are doing everything right at the plate, yet the box score hasn't rewarded them. With large negative differentials, these hitters are the primary candidates for positive regression.

1. Ke'Bryan Hayes (-0.115 Diff): Hayes holds the unfortunate title of the unluckiest hitter in the dataset. With a massive gap of -0.115 between his expected and actual performance, he is routinely making high-quality contact that finds its way into defenders' gloves.
2. Bo Naylor (-0.109 Diff): Close behind is Naylor, whose -0.109 differential suggests he has been victimized by defensive positioning and ballpark dimensions more than almost anyone else in the league.
3. Patrick Bailey (-0.095 Diff): Bailey rounds out the top three unluckiest hitters with a -0.095 luck gap. His process remains sound, indicating his actual wOBA should see a significant jump soon.
4. Luisangel Acuña (-0.076 Diff): Despite a solid approach, Acuña has faced a -0.076 deficit in his results.
5. Ketel Marte (-0.073 Diff): Even established stars aren't immune to bad luck. Marte's -0.073 difference highlights a frustrating stretch where his contact quality far exceeded his actual production.

These players provide you with the perfect opportunity to buy low. Guys like Luisangel Acuña are underperforming, but underlying statistics point towards better performance in the coming months.

If you have any of these players on your fantasy teams (or your favorite team) fear not! It is reasonable to believe that good things are on the way.

The Luckiest 5: Defying the Metrics

On the other end of the spectrum, these five hitters have production levels far exceeding what the "quality of contact" metrics would predict. Whether through "dying quails" or defensive miscues, these hitters have been the beneficiaries of good fortune.

1. Mickey Moniak (+0.120 Diff): Moniak is the king of "good luck" in this cycle, posting a staggering +0.120 differential. While his results look great on paper, the underlying metrics suggest he may be due for a cooling-off period.
2. Ozzie Albies (+0.081 Diff): Albies has found success despite contact that doesn't always jump off the page, leading to a +0.081 surplus in his actual stats.
3. Ildemaro Vargas (+0.079 Diff): Vargas has managed to outpace his expected metrics by +0.079, proving that sometimes just putting the ball in play is enough to get the job done.
4. Miguel Andujar (+0.077 Diff): With a +0.077 differential, Andujar is another hitter whose actual wOBA is currently inflated by favorable outcomes.
5. Javier Sanoja (+0.074 Diff): Sanoja completes the list of the luckiest outliers with a +0.074 gap between his expected and actual wOBA.

I personally own two of these players on my fantasy teams and I am looking to pawn them off onto unsuspecting suspects. Ozzie Albies is in the 16th percentile in exit velo and the 11th percentile in hard hit rate. This is just an example of someone that has fallen into some BABIP luck and regression may be inbound.

The Takeaway

When evaluating hitter performance for fantasy baseball or sports betting, the "Luck Factor" is an essential tool. While the names in red (unlucky) are likely to see their fortunes improve, the names in green (lucky) may be the perfect candidates to "sell high" before the law of averages catches up to them.

Dylan Wilkerson

Dylan Wilkerson has over 5 years of experience reporting and analyzing the sports betting industry for various sites. His portfolio includes work for SportsHandle and Action Network, in addition to VegasInsider. His favorite sports are the NFL, College Football, The PGA Tour, the LIV Tour, and Cricket. Dylan has a broad and deep understanding of various sports-related topics. More from Dylan Wilkerson