The Unheralded All-Stars are one of the most fun parts about fantasy baseball. Sometimes it’s your late-round sleeper pick that you had been eyeing all offseason and other times, let’s admit it, you get lucky and fall into the previously unseen breakout pick. Let’s look at three guys giving their fantasy teams more than they expected and see just how real these performances have been thus far.

Seth Smith (OF, SD) – All Smith did was move from one extreme pitcher’s park to another and all after starting his career in the single best hitter’s park of our time, so why is he toting a 1054 OPS through Thursday? Well, not all pitcher’s parks are created equally. In Oakland, he was playing half of his games in a park that offers a meager 75 home run park factor (100 is average) to lefties so it wasn’t a huge surprise to see him hit just nine home runs there in his two seasons as an Athletic after averaging more than that in each of his three seasons with the Rockies (he averaged 9.7 to be exact).

Of course, no was expecting him to replicate his Coors Field numbers, but the only place worse than his landing spot in Oakland would’ve been crossing the bay to become a Giant. AT&T Park boasts a whopping 64 home run park factor for lefties. Petco Park still favors pitchers, but it has near-neutral home run park factors the last three years, including a 97 for lefties. It’s still below average, but it’s a sharp increase for anyone coming from Oakland. Smith’s .423/.505/.769 in 92 home PA is sure to come down, but it wouldn’t be shocking to see him finish in the mid-to-high 800s with his home OPS by season’s end. His four homers in San Diego so far this year is almost halfway to his two year total in Oakland.

A.J. Pollock (OF, ARI) – Though the 2009 first round pick show an enticing power-speed combination, the latter was definitely ahead with a rate of 30 SBs per 600 PA compared to just six home runs at the minor league level. He struggled against righties a season ago with a 678 OPS which put him in danger of becoming a short-side platoon player without improvements. Improve he has, though he’s essentially flipped his platoon split by doing most of his damage against righties and hitting just .212 against lefties (albeit in just 35 PA). He’s close to a 20/20 pace right now along with a hilariously misplaced 36 RBI pace.

That RBI pace has to come up some, especially if he can stay anywhere near his excellent 40 percent extra-base hit rate. The D’Backs more or less announced their confidence in Pollock when they dealt Adam Eaton this offseason and the 26-year old hasn’t disappointed. The next step is slotting him and his .349 OBP atop the lineup over Gerardo Parra and his continually declining OBP that has bottomed out at .301 this year, his third straight season of decline.

Juan Francisco (3B/1B, TOR) – I still can’t figure out why Milwaukee didn’t want to go with a Francisco/Mark Reynolds platoon at first base. Instead they chose 37-year old Lyle Overbay to be their long-side of the platoon and he has rewarded them with a cool 596 OPS against righties. Francisco has never had a superstar turn against righties, but he’s been well above 596 throughout his career. You just can’t let him anywhere near a lefty. His 1148 explosion against righties thus far is definitely aided by his new home park that offers lefties a 126 HR park factor.

Six of his eight homers thus far have come in Rogers Centre and his 1124 OPS there is almost equal to his mark against righties. He’s well on his way to a Brandon Moss-esque season despite being in a straight platoon. Moss popped 30 homers in 505 PA last year with 26 of them coming against righties. Moss doesn’t quite flail against lefties as much as Francisco, posting a 649 OPS in 88 PA last year while Francisco’s next 500 OPS effort against them will be his first. While he lacks any ability against southpaws, he makes up for it a little bit by having eligibility as one of thinner positions on the diamond at the hot corner.

Other Unheralded All-Stars of Note:

Lonnie Chisenhall (3B, CLE) – Left for dead after just 682 PA of near-league average work (94 OPS+), the 25-year old former first rounder has been fantastic in 115 PA so far this year – 108 of them against righties. Lefties have given him fits throughout his pro career so he’s likely to stay a platoon player for now, but it’s the strong side and the two-time top 45 prospect is raking. A lot of fantasy players are reticent to roster a platoon player, but it should be seen as a positive with players who are as deficient against one side as Chisenhall because it protects the batting average.

Corey Dickerson (OF, COL) – Dickerson lost the centerfield job to Charlie Blackmon (who didn’t make this list because he’s been so good that he’s owned in any league worth a lick) and then was shipped to Triple-A in the first week of the season. This led to his mass exodus from fantasy teams everywhere, but he returned after just three games with Colorado Springs and he’s done a mean Blackmon imitation since returning. Blackmon had a .406 average, two homers, and five stolen bases in his first 75 PA this year. Dickerson has a .343 average, five homers, and two stolen bases in his first 73 PA this year. The return of Michael Cuddyer puts Dickerson’s playing time in doubt, but Cuddy is 35 years old with four DL stints in the last three years (including the one he just finished) and Carlos Gonzalez isn’t exactly the model of the health.