Draftkings MLB Showdown Picks: Blue Jays vs. Mariners 10/16/25
Toronto Blue Jays vs. Seattle Mariners
October 16, 2025 8:33 pm EDT
Major League Baseball presents Draftkings baseball fans with an American League playoff matchup featuring the Toronto Blue Jays and the Seattle Mariners. Let’s take a look at this MLB game from a DFS perspective.
Before we dive into the Toronto Blue Jays vs. Seattle Mariners game let’s review the rules for the Draftkings MLB single game showdown contest.
Draftkings Single Game Showdown Contest Rules
You have $50,000 to utilize on five players from either team. However, one of those players will be designated as your team captain. The captain accumulates 1.5 times the standard fantasy points. Additionally, the captain is 1.5 times the standard cost of the flex position.
The remaining four players in your lineup will receive the standard fantasy points. Having stated that, it is highly important for you to identify the correct player for your captain position if you hope to win a large field DFS GPP (guaranteed prize pool) showdown contest.
If you have additional questions regarding the rules for the single game showdown contest, I recommend that you check out the Draftkings website for more details.
*I recommend that all readers review the starting lineups for both teams prior to setting your DFS lineup for this one game slate.
Here are my Draftkings picks for tonight’s Blue Jays vs. Mariners matchup.
Draftkings MLB Showdown Picks
On Thursday night, Major League Baseball presents the fourth game of a seven-game American League playoff series featuring the Toronto Blue Jays and the Seattle Mariners.
How are these two teams playing entering tonight’s MLB playoff game? The Toronto Blue Jays arrive at the fourth game of this seven-game series with the Seattle Mariners playing subpar baseball. The Blue Jays have lost three of the team’s last five games played in the 2025 MLB season, including a 10-3 loss to the Seattle Mariners three days ago.
In direct contrast to the Toronto Blue Jays, the Seattle Mariners arrive at the fourth game of this American League playoff series playing quality baseball. The Mariners have won five of the team’s last seven games played this season, including a 3-1 win over the Toronto Blue Jays last week.
Captain-Luis Castillo, Starting Pitcher, Seattle Mariners $10,800
Now that we have ascertained how both of these teams are currently playing let’s shift our focus to tonight’s American League playoff game. Starting pitcher Luis Castillo has certainly been an important part of the Seattle Mariners starting rotation this season. Having stated that, how has Castillo performed from a statistical perspective in 2025? Let’s review the veteran hurler’s relevant game data from the 2025 MLB season to better shed light on Kirby’s overall contributions to his team.
In 32 starts made in the 2025 MLB regular season, Seattle Mariners starting pitcher Luis Castillo compiled a rather impressive 11-8 (win-loss record), a 3.54 ERA (Earned Run Average) and a 1.19 WHIP (Walks and Hits per Inning Pitched) which ranked 20th in MLB. It should also be noted that Castillo amassed 162 strikeouts in 180.2 innings pitched this season.
More recently, in the Seattle Mariners 9-2 victory over the Colorado Rockies last month, Luis Castillo pitched exceptionally well. Let me be more specific. In the Rockies defeat of the Rockies, Castillo pitched 7.1 quality innings while scattering one hit and no walks. Additionally, Castillo struck out a whopping ten Colorado Rockies batters in the game.
What did we learn from the data just presented? Clearly, Luis Castillo has pitched at a high level this season. With that said, I fully expect that trend to continue in tonight’s matchup with the Toronto Blue Jays.
In my opinion, Luis Castillo is the most likely player to post the most Draftkings points in this MLB playoff game. For that specific reason, I am backing Seattle Mariners starting pitcher Luis Castillo at the captain position for this one game MLB DFS slate.
Flex plays I like to play well in this MLB playoff game (Draftkings price noted): Ernie Clement, Second Baseman (Toronto Blue Jays) $6,000: Julio Rodriguez, Outfielder (Seattle Mariners) $9,200: Eugenio Suarez, Third Baseman (Seattle Mariners) $7,400.
