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Top MLB DFS Postseason Start‘em/Sit‘em For October 19th
- Oct 17, 2025; Seattle, Washington, USA; Seattle Mariners first baseman Josh Naylor (12) reacts after third baseman Eugenio Suarez (not pictured) hits a grand slam against the Toronto Blue Jays in the eighth inning during game five of the ALCS round for the 2025 MLB playoffs at T-Mobile Park. Mandatory Credit: Stephen Brashear-Imagn Images

Heading into tonight’s American League Championship climax, fantasy players could win cash prizes for tonight’s top MLB DFS postseason lineups and fantasy stack to potentially end the American League Championship Series. With the World Series getting close, fantasy players could have a chance to win cash prizes to end the series with the Blue Jays and Seattle Mariners going back to Toronto to end the series this weekend. With the World Series a couple of days away, fantasy players could win cash prizes in tonight’s top MLB DFS postseason lineups and fantasy stacks. 

Sunday’s continuation of the championship series of the American League Championship Series could help players win cash prizes in tonight’s game. The Toronto Blue Jays and the Seattle Mariners could end their series tonight with game six of the championship series in Canada. With the World Series coming soon, tonight’s top MLB DFS postseason lineups could help players win cash prizes tonight.  

With the World Series coming in a couple of days, fantasy teams could win cash prizes in tonight’s top MLB DFS postseason lineups and fantasy stack to potentially end the championship series. 

October 19th Top MLB DFS Lineup Starters 

1B Josh Naylor, Toronto Blue Jays at Seattle Mariners ($7,000 – DraftKings/$9,200-FanDuel)

To start Sunday’s American League Championship series matchup, for today’s top MLB DFS lineups, Josh Naylor should be in tonight’s top MLB DFS postseason lineups. In the bounce-back win against the Blue Jays, Naylor went 1-3 with a walk during Friday’s win. 

Naylor has been playing better in the postseason and could have a strong game against the Blue Jays tonight. Fantasy players could see a multi-hit game from the Mariners veteran slugger tonight.

2B/SS Leo Rivas, Toronto Blue Jays at Seattle Mariners ($5,700 – DraftKings/3,200-Fanduel)

Leo Rivas of the Seattle Mariners should be in tonight’s top MLB DFS lineups against the Toronto Blue Jays in the Championship series.  In a win against the Blue Jays, Rivas went 0-3 with a strikeout. 

Rivas came out of nowhere for the Mariners and could have another solid game. Fantasy players could see a multi-RBI game from the Mariners infielder who could have a Bucky Dent moment against the Blue Jays tonight.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          

SS J.P. Crawford, Toronto Blue Jays at Seattle Mariners ($5,000 – DraftKings/5,400-Fanduel)

The last player to have for your fantasy lineups is J.P. Crawford, of the Seattle Mariners, to continue the series against the Toronto Blue Jays. During the win against the Blue Jays, Crawford went 0-3 with a strikeout. 

Crawford has been playing well this postseason with seven hits and four RBIs this October. Fantasy players for tonight’s top MLB DFS postseason lineups could see a multi-hit game from the Mariners veteran infielder. 

October 19th Top MLB DFS Benchwarmers 

OF Daulton Varsho, Seattle Mariners at Toronto Blue Jays ($8,000 – DraftKings/$8,200-FanDuel)

Daulton Varsho is the first player who should be on your top MLB DFS fantasy benches for Sunday’s championship series games for fantasy lineups. In the crushing loss to the Mariners, Varsho went 0-4 with a strikeout. 

Varsho is having a great postseason, but has struggled in the Championship series with three RBIs in the series at Seattle. DFS players could see a multi-strikeout game from the Blue Jays veteran outfielder. 

3B/OF Addison Barger, Seattle Mariners at Toronto Blue Jays ($6,200 – DraftKings/$6,200-FanDuel)

Addison Barger of the Toronto Blue Jays is another player who should be on your fantasy bench to continue the championship series against the Mariners. In the losing effort to the Mariners, Barger went 1-3 with a strikeout during the game five loss. 

Barger has been having a solid series against the Mariners in Seattle, but struggled on Friday. DFS players could expect a multi-strikeout game from the Blue Jays’ star utility player.

OF Nathan Lukes, Seattle Mariners at Toronto Blue Jays ($5,600 – DraftKings/$6,000-Fanduel) 

Nathan Lukes of the Toronto Blue Jays should be the last player on your top MLB DFS bench for Sunday’s championship series games. In a crushing loss to the Mariners, Lukes went 1-3 with a walk. 

Lukes has been playing well against Seattle but struggled on Friday, and it could affect him on the homestand. DFS players could see a hitless game from the Blue Jays’ star outfielder against a hot Mariners pitching staff.

 Total Apex Media Stack Of The Day

Sunday’s top MLB DFS postseason stack for tonight’s divisional series games is the Seattle Mariners, Cal Raleigh, Julio Rodriguez, and Eugenio Suarez. The Mariners are coming back to Toronto with a lot of momentum against the Blue Jays and could clinch a World Series berth against the Dodgers tonight. Fantasy players with the World Series berth on the line could be amazing for tonight’s top MLB DFS postseason lineups and fantasy stack. 

The first player for tonight’s top MLB DFS postseason stack should be Raleigh after a strong game against the Blue Jays tonight. In the win against the Blue Jays, Raleigh went 2-4 with a home run and a strikeout in the bounce-back win. Raleigh had one of the best seasons as a catcher and a strong postseason, and could continue his run against the Blue Jays tonight. Fantasy players could expect a multi-hit game from the Mariners’ MVP candidate. 

Another player for tonight’s top MLB DFS postseason lineup stack is Rodriguez, who could have an amazing game to end the American League Championship series. During the win against the Blue Jays, Rodriguez went 0-4 with a strikeout. Rodriguez has been having a strong postseason and could play well in Toronto to end the series for the Mariners tonight. Fantasy players could see a multi-hit game from the Mariners’ superstar.

The last player for tonight’s top MLB DFS postseason lineup stack should be Suarez after his best game against the Blue Jays. In the win against the Blue Jays, Suarez went 2-5 with five RBIs and two home runs, including a grand slam. Suarez has been struggling in the postseason, but came in the clutch against the Blue Jays and could have another great game tonight. Fantasy players could see another multi-RBI game from the Mariners veteran slugger tonight. With the World Series around the corner, fantasy players could win a lot of money in tonight’s championship top MLB DFS postseason lineups and fantasy stacks.

This article first appeared on Total Apex Fantasy Sports and was syndicated with permission.

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