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Hitters Who Lose Value in OBP Leagues

When looking at Fantasy Baseball rankings, you will often find a list tailored to standard 5×5 leagues. It often seems that OBP leagues are neglected by Fantasy analysts, despite it being a growing league type. Each year, more and more players begin to transition their leagues to OBP format. It gives a more real-life feel, rewarding hitters who get on base at a high clip. After playing in several OBP leagues the last few years, it is hard for me to go back to batting average leagues.

Last week we looked at “Hitters Who Gain Value In OBP Leagues.” This article will dive into several hitters who are less valuable in an OBP league than standard 5×5. Far too often, 5×5 bias takes over, and Fantasy Baseball players fail to convert rankings they may be using into league appropriate settings. This happens with both points and OBP leagues. The goal of this article is to identify hitters who lose value in an OBP format versus leagues that use only batting average.

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25 Hitters Who Lose Value in OBP Leagues

Below you will find a list of 25 hitters who have the smallest gap between batting average and OBP based on Ariel Cohen’s ATC Projection system. All of these hitters have a minimum of 300 projected plate appearances. If you play in an OBP league versus a standard batting average league, you may want to consider where you value these hitters.

Player NameTeamPosBAOBPBA-OBP
Hanser AlbertoBAL2B0.2790.3070.028
Tim AndersonCHWSS0.2900.3240.034
Jose TrevinoTEXC0.2370.2710.034
Jose IglesiasLAASS0.2790.3140.035
Salvador PerezKCC0.2670.3020.035
Josh FuentesCOL1B0.2550.2900.035
Amed RosarioCLESS0.2760.3120.036
Victor ReyesDETOF0.2740.3120.038
Javier BaezCHCSS0.2600.2980.038
Erik GonzalezPIT3B/SS0.2420.2800.038
Adalberto MondesiKCSS0.2530.2920.039
Donovan SolanoSF2B0.2840.3230.039
Starlin CastroWAS2B0.2750.3150.04
Kevin PillarCOLOF0.2630.3030.04
Eddie RosarioMINOF0.2700.3120.042
Jose GarciaCINSS0.2350.2770.042
Ryan MountcastleBAL1B/OF0.2800.3230.043
Yuli GurrielHOU1B0.2670.3100.043
Lourdes GurrielTOROF0.2760.3200.044
Byron BuxtonMINOF0.2570.3010.044
Yadier MolinaSTLC0.2580.3030.045
Jonathan SchoopDET2B0.2570.3020.045
Raimel TapiaCOLOF0.2850.3310.046
Nick MadrigalCHW2B0.2970.3440.047
Corey DickersonMIAOF0.2700.3170.047

OBP League Fallers

Tim Anderson, SS, Chicago White Sox

NFBC ADP(Since 1/1): 38

Tim Anderson continues to prove the doubters wrong. After winning the MLB Batting Title in 2019, everyone screamed for regression due to a high BABIP of .399. Anderson continued his success in the shortened 2020 seasons with a .322 batting average and a .383 BABIP. At this point, it feels like Anderson is who he is. Anderson may always be able to carry a high BABIP and batting average because of that. I have no concerns with his ability to hit for batting average and be a solid power/speed threat. The issues come in OBP leagues.

Anderson has a career 3.4 percent walk rate. Yes, his OBP is respectable because of his higher batting averages, but if Anderson has a season with bad BABIP luck and hits .280, his OBP will be putrid. Over a full season in 2019, Anderson’s walk rate is 2.9 percent. Based on ATC Projections, only Hanser Alberto is projected to have a smaller difference in batting average and OBP. Anderson is a decent target in the third or fourth round if you are in a batting average league. Do not draft him this high in OBP format, though. Make sure you weigh the drop in OBP appropriately.

Tim Anderson OBP League

Javier Baez, SS, Chicago Cubs

NFBC ADP(Since 1/1): 71

Javier Baez has a large fall from grace in the shortened 2020 season. Unlike Anderson, his value dropped like a rock. After posting a slash of .282/.320/.525 between 2017 and 2019, Baez posted a .203/.238/.360 slash in 2020. He chalked it up the lack of video access. Whatever it was, it was not pretty for Baez in 2020.

Baez is not a player I want to own in an OBP Leauge, though. If the price remains pick 70, count me out.  His career walk rate of 4.7 percent is well below average, and as you can see, the floor is low. If Baez hits just .260 next season, his OBP is likely below .300. Yes, there is intriguing power and speed, but the plate discipline is dreadful. Baez is likely an avoid in the top 75 of an OBP league.

Adalberto Mondesi, SS, Kansas City Royals

NFBC ADP(Since 1/1): 19.8

Ah, the player who stirs the most arguments on Fantasy Baseball Twitter. Adalberto Mondesi is an extremely polarizing player who offers league winning power/speed upside but also a league losing floor with his poor plate discipline. I will not get into his full profile, but you can check out what Corbin Young had to say about him.

Let’s not argue whether he is worth the price tag in a standard 5×5 league. This is more of the fact that his value in OBP leagues should be much lower. Sure, he is a career .251 hitter, and you might swallow that knowing you could get a 15 HR/50 SB season. But the OBP will hurt you. A career 4.3 percent walk rate dings his value as well as his career .284 OBP. Between 2019 and 2020, among hitters with at least 650 plate appearances, Mondesi has the fourth-lowest OBP at .292. So unless he falls in your OBP league, which is unlikely, I would suggest avoiding him.

Adalberto Mondesi OBP League

Eddie Rosario, OF, Free Agent

NFBC ADP(Since 1/1): 120.8

It is quite interesting that Eddie Rosario was non-tendered by the Twins after being a solid contributor since 2017. There have been batting average woes, and Rosario has seen that number drop from .290, .288, .276, .257 over the last four seasons. Interestingly enough, Rosario’s strikeout rate has dropped every season from 2017 to 2019, and his 2o20 mark was nearly identical to 2019. It is also worth noting that Rosario’s walk rate jumped to a career-high 8.2 percent in 2020. Was it just a mirage in the shortened season, or did his plate discipline actually improve?

Regardless, Rosario needs to find a new home before we can really determine his value. There are plenty of teams where he could slot in the middle of the order. But, if he moves to a contender with a full outfield, could he find himself in a platoon? There are a lot of questions to be answered. But based on ATC Projections, Rosario is projected to have the 16th smallest gap between his projected batting average and OBP. Monitor the landing spot and asses Rosario’s value from there.

Ryan Mountcastle, 1B/OF, Baltimore Orioles

NFBC ADP(Since 1/1): 154.3

Ryan Mountcastle enjoyed a solid rookie campaign in 2020 with the Orioles. His .333/.386/.492 slash with five home runs over 140 plate appearances got Fantasy owners and Orioles’ fans excited. Mountcastle has always displayed a solid hit tool and power in the minor leagues. But Mountcastle has never shown the ability to walk at a near eight percent rate as he did in 2020. It is an interesting development to see if it sticks, but for now, I project Mountcastle to be between a five and six percent walk rate. If that improves, his value soars!

Media References: Fangraphs 

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