Mark Vientos
19-Year-Old Third Baseman3B
2019 Fantasy Outlook
Vientos was drafted with the No. 59 pick in 2017, has not had any significant injuries, yet will not be making his full-season debut until 2019. Such is the typical path for the youngest prep hitter in a draft class. He did not turn 19 until this offseason, so it's not like he will be old for the Sally League, he just needed two years worth of short-season reps to prepare for the challenge. Vientos flashed his power upside in 2017, hitting four homers in the Gulf Coast League as a 17-year-old, but his performance in 2018 was even more impressive. He was the Appy League's third youngest hitter, yet ranked in the top 10 in wRC+ (132), ISO (.202) and BB/K (0.86). At 6-foot-4, 185 pounds, he has an ideal frame for his age and position. It is not a stretch to say he is tracking toward 30-plus homer power, and while he is unlikely to ever hit .300, his 14.1 BB% portends a high enough OBP to justify placement in the middle of a big-league lineup. Read Past Outlooks
RANKSFrom Preseason
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$Signed a contract with the Mets in June of 2017 that includes a $1.5 million signing bonus.
Finding power stroke
3BNew York Mets  A
July 18, 2019
Vientos went 3-for-4 with a double and a solo home run for Low-A Columbia on Wednesday.
ANALYSIS
That's three homers in the last five games for Vientos, and the Mets' No. 4 RotoWire fantasy prospect is now slashing a fantastic .380/.446/.680 through 14 games in July. He won't turn 20 until December, so any success he has in full-season ball is impressive, but his recent hot streak is offering hope that the power potential scouts saw in his lanky 6-foot-4 frame is quickly becoming actual in-game power. Vientos is still at least a couple of years from the majors, but a big second half will send him skyrocketing back up prospect lists.
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Recent RotoWire Articles Featuring Mark Vientos
Minor League Barometer: Risers & Fallers
59 days ago
The Rays may boast a few blue-chip pitchers in their system, but Jesse Siegel features another rising starter who's set to fly past High-A.
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101 days ago
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191 days ago
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Farm Futures: Third Base Tiers
192 days ago
James Anderson reviews the top prospects at the hot corner, where Vladimir Guerrero Jr. sits head and shoulders above the competition.
Farm Futures: Ranking the Farm Systems
August 2, 2018
James Anderson unveils his second annual farm system rankings and is a little surprised at how high Vlad Guerrero Jr. and the Blue Jays have risen.
2018 Fantasy Outlook
Betting on the youngest of the prep hitters in a draft class will often bear fruit, and Vientos is the prime example from 2017. When he turned 18 in December he already had 51 pro games under his belt and a $1.5 million signing bonus in his bank account. At 6-foot-4, 185 pounds, and as a below-average runner, it would be pretty optimistic to expect him to stick at shortstop long term, but he should fill out nicely and resemble a prototypical power-hitting third baseman. The most encouraging aspect of his first crack at pro pitching was the four home runs he hit as the sixth youngest position player in the Gulf Coast League. Typically prospects like Vientos take a year or two to start showing off their power potential, but he wasted no time confirming the Mets’ evaluation of his long-term power upside. A hot August in the GCL (.307/.340/.477) earned him a brief taste of the Appalachian League, and he could be aggressively assigned to Low-A this spring.
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Heating up at Columbia
3BNew York Mets  A
July 8, 2019
Vientos went 2-for-4 with a walk, a run scored and an RBI for Low-A Columbia on Sunday.
ANALYSIS
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Still not clicking in Low-A
3BNew York Mets  A
June 21, 2019
Vientos went 2-for-4 with a double, a home run, two runs scored and three RBI for Low-A Columbia on Thursday.
ANALYSIS
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Poor start to season
3BNew York Mets  A
April 29, 2019
Vientos is slashing .225/.313/.310 through 21 games for Low-A Columbia with one home run and seven RBI.
ANALYSIS
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Beginning year at Low-A
3BNew York Mets  A
April 4, 2019
Vientos will begin the season with Low-A Columbia, Mike Rosenbaum of MLB.com reports.
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Enjoying power surge in Rookie ball
3BNew York Mets  A
July 28, 2018
Vientos went 3-for-5 with two home runs and seven RBI for Rookie-league Kingsport in Friday's win over Burlington.
ANALYSIS
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