2023 Fantasy Baseball Week 19 Waiver Wire

by Connor Thomure
2023 Fantasy Baseball Week 19 Waiver Wire

Welcome to the 2023 Fantasy Baseball Week 19 Waiver Wire.

This week on the Waiver Wire: Brady Singer is highlighted as a pitcher with two starts that needs to be added for week 19. My favorite pick of the week is a rookie second baseman who recently broke a franchise record and is guaranteed to play every day. After him comes another rookie, this time a pitcher. Gavin Williams struck out 12 Toronto batters the other day, making his Fantasy relevancy skyrocket.

After those three, we have three corner infield options starting with Nolan Jones, who is making his third appearance on the 2023 Fantasy Baseball Waiver Wire. After him is a new fan favorite for the Los Angeles Angels fanbase. Lastly, we end it with Joey Meneses, who already has a 48% roster percentage, but his stats say that should be higher.

For our All-Access members, an additional 27 batters and 19 pitchers are listed and discussed to help you win the week.

2023 Fantasy Baseball Week 19 Waiver Wire

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Brady Singer, SP, Kansas City Royals

Singer has had ups and downs throughout his entire four-year MLB career. Fortunately, he is currently on one of the ups for Fantasy managers. Over his last five starts, he's recorded three wins and zero losses with a 2.94 ERA across 33.2 innings. He's allowed 24 hits and five walks (0.86 WHIP) and struck out 31 batters (6.20 K/BB).

SeasonW-LERAFIPK/9BB/9HR/9IP
202210-53.233.588.802.051.06153.1
20238-85.053.997.572.810.91128.1

Singer, thus far, is having a down season compared to last. His ERA is a career-worst, and his strikeouts per nine are a career-low. However, he is still doing some things right. He allows less than one home run per nine (a career best), and his walks per nine are also respectable. Both of these have kept his FIP down and his Fantasy value up.

The 27-year-old has a two-start week at home against the Seattle Mariners, then on the road against the Chicago Cubs. Over the last seven days, the Cubs and Mariners are top-10 in OPS. The Cubs have also scored the third most runs, while the Mariners have scored the 14th most in this span.

Zack Gelof, 2B, Oakland Athletics

My favorite option on the 2023 Fantasy Baseball Week 19 Waiver Wire is Zack Gelof. The rookie second baseman has now spent just under a month in the big leagues, but he's looking like one of the best rookies to get the call this season. He's slashing .250/.315/.560 with a 139 wRC+ across 92 plate appearances.

Over the last 30 days, he has been a clear-cut top-12 second baseman in the league. He's belted six home runs, six doubles, and one triple while scoring 15 runs and driving in 11 RBI. Gelof has added six stolen bases as well.

The biggest issue with Gelof's game is his on-base percentage and plate discipline. The rookie has walked just seven times while striking out 27 times. However, he's more than made up for it with his slugging percentage and impressive base running ability.

Gelof's roster percentage is a minuscule 13%. Still, with him outperforming middle infielders such as Amed Rosario, Ryan McMahon, Jeff McNeil, and Andres Gimenez, I expect Gelof's roster percentage to increase to around 30% this week.

Nolan Jones, 1B/OF, Colorado Rockies

Nolan Jones has made the Waiver Wire a few times, but his roster percentage is still 17%. The rookie was initially called upon to fill a hole at first base in late May but has become an everyday corner outfielder.

On the season, he's slashing .276/.356/.500 with a 116 wRC+ across 222 plate appearances. Jones has recorded 11 doubles, 11 home runs, seven stolen bases, and scored 27 runs and 29 RBI. This impressive slash line has prompted the Rockies to move Jones up from sixth in the lineup to fifth or even fourth.

Over the past 15 days, Jones has been even more impressive by slashing .300/.383/.525 with five extra-base hits, six runs, and seven RBI.

The Rockies have two series at home this week, the first against the Arizona Diamondbacks and the second against the Chicago White Sox. These teams are tied with allowing the 16th most home runs over the past 15 days. Both pitching staffs are also in the bottom ten for strikeouts in this span, making this an opportunistic week for Jones.

Gavin Williams, SP, Cleveland Guardians

Coming into the season, Gavin Williams was known to be one of the best pitching prospects in baseball. However, he may have moved to the top of the list after appearing in nine MLB games.

Williams has a 1-3 record with a 2.90 ERA and 3.49 FIP across 49.2 innings. How's he keeping his ERA and FIP so low? He's doing what so many young pitchers have trouble doing, keeping the ball inside the park. Williams is currently allowing only 0.72 home runs per nine innings. This ranks ninth among starting pitchers with at least 40 innings this season. He hasn't allowed a home run since July 3.

So, he limits the long ball, but how many strikeouts and walks does he record? On the season, he averages 8.88 K/9 and 3.99 BB/9. However, those have been 12.94 and 3.94 over his last three starts, respectively. 8.88 strikeouts per nine innings is respectable, but 12.94 is out of this world for a starting pitcher. The walks are a bit high, but he's done a fantastic job keeping the runners stranded on base.

Williams faces a tough Rays offense on Saturday, August 12 but gets an easier opponent with the Detroit Tigers for week 19.

Mike Moustakas, 1B/3B, Los Angeles Angels

Mike Moustakas has played an everyday role since joining the Los Angeles Angels on June 26 and turned himself into a fan favorite. He's been an above-average player in this time frame by slashing .285/.314/.500 with a 119 wRC+. The on-base percentage isn't significant, but he's more than making up for it with his excellent slugging percentage.

At first, Moustakas was batting fifth for the Angels, but since August 1, he's batted fourth in all but one game. He is batting just two spots behind Shohei Ohtani, significantly increasing Moustakas' value. In these eight games, he's driven in 10 RBI. In the previous 26 games, however, he only drove in 13 RBI.

The Angels' third baseman has an eight percent roster percentage making him one of the best widely available players to target this week.

Moustakas and the Angels have a tough week ahead of them. They start by playing the Texas Rangers on the road and are tentatively scheduled to face Max Scherzer, Jordan Montgomery, and Jon Gray. Then they finish the week with a three-game set at home versus the always-tough Tampa Bay Rays.

Joey Meneses, 1B, Washington Nationals

Joey Meneses comes into this week with a 48% roster percentage, but his .281/.326/.414 slash line with 50 runs and 63 RBI should make his roster percentage jump higher. Meneses is right on the edge of being a top-12 first baseman in Fantasy Baseball.

Among qualified first basemen he ranks 10th in RBI (one more than Nathaniel Lowe), 15th in runs (tied with Triston Casas), and sixth in batting average.

We would like to see Meneses' on-base and slugging percentages increase, but his run production has made him valuable in 12-team leagues.

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