- Matchup: Seattle Mariners vs Washington Nationals
- Date: Saturday, June 13, 2026
- Venue: Nationals Park, Washington, D.C.
- Broadcast: Nationals.TV
- Betting Odds: Seattle (-160) Washington (+132)
This page may include affiliate links at no extra cost to you, thanks for your support.
The Seattle Mariners (36-33) are headed to Nationals Park this Saturday to take on the Washington Nationals (35-34). The Mariners are favored at -160, while the Nationals are at +132. The total runs line is set at 8. Expected to take the mound are Luis Castillo and Cade Cavalli.
The Mariners have a slugging percentage of .396 and have struck out 595 times while drawing 236 walks. They have accrued 285 RBIs from 545 hits this season, resulting in a batting average of .237. The team has achieved 94 doubles and launched 87 home runs, scoring 292 runs with an on-base percentage of .317. As a result, Seattle is averaging 4.2 runs per game, ranking 20th in the league.
The Mariners own a team ERA of 3.54 this season (5th in MLB), striking out 595 batters. Seattle’s pitchers have surrendered 65 home runs and 264 runs total (6th in MLB). They have issued 182 walks and maintain a FIP of 3.61. The Mariners have allowed 554 hits (8.1 hits per 9 innings) along with 242 earned runs, boasting a strikeout-to-walk ratio of 3.27 and a collective WHIP of 1.19.
A total of 211 relievers have taken the mound for Seattle this season. The bullpen has inherited 69 base runners, with 18.8% scoring. Their 40 holds rank 12th in major league baseball. Mariners pitchers have found themselves in 53 situations with runners on base and made 85 appearances in high-leverage scenarios, successfully saving 16 of 29 opportunities for a 55.2% save percentage.
On defense, the Mariners convert 69.7% of batted balls into outs across 5,544 innings, placing them 17th in MLB. Seattle has tallied 1,848 putouts, 565 assists, and 30 errors this season. Their fielding percentage is .988, ranking 10th, and they’ve turned 63 double plays.
Castillo has a career record of 86-89 with a FIP of 3.57, having faced 6,095 batters and allowing 1,268 hits (7.8 hits per nine innings) while issuing 476 walks. With an earned run average of 3.62 (592 earned runs allowed) and a WHIP of 1.185 over 1,471 innings, he has racked up 1,554 strikeouts.
The Nationals are boasting a slugging percentage of .419 and leading the league with 5.39 runs per game. They have hit 120 doubles, drawn 243 walks, and scored 372 runs alongside 89 home runs and 352 RBIs. While striking out 571 times (14th in baseball), they have accumulated 583 hits, with a team OBP of .323 and a batting average of .246.
The Washington pitching staff holds a WHIP of 1.392 and a FIP of 4.85. They rank 28th in total hits allowed, giving up 612 hits and 365 runs this season, with a collective ERA of 4.67 (322 earned runs). They boast a K/BB ratio of 7.80, with 537 strikeouts against 253 walks, having allowed 98 home runs, yielding 5.29 runs per 9 innings (29th in the league).
The team’s save percentage stands at 53.8%, placing them 24th. Washington has employed 223 relievers this year, with their bullpen making 78 high-leverage appearances and 69 with runners on base. The Nationals have recorded 34 holds and blown 18 saves in 77 save opportunities, converting 21. Their inherited runners scoring percentage is at 45.1% from 102 inherited runners.
In the field, the Nationals have turned 51 double plays, holding a fielding rate of .977 (30th in MLB) with 615 assists, 58 errors, and 1,865 putouts. Over 5,595 innings, they have achieved a defensive efficiency of 69.5%, ranking 20th in the major leagues.
Cavalli has allowed 138 hits and recorded 122 strikeouts in 122 innings pitched, surrendering 60 earned runs. His career WHIP is 1.473 along with a FIP of 4.4, showcasing a K/BB ratio of 2.90 over 555 hitters faced. Cavalli has a career win-loss mark of 6-6 with an earned run average of 4.42, allowing 10.2 hits per 9 innings.
Who will prevail in tonight’s MLB face-off against the spread or moneyline?
Selection: Bet on Washington (+132) and the under 8 runs
Some links on this page are affiliate links. If you sign up or make a purchase through them, we may earn a small commission always at no extra cost to you. Thanks for helping us keep this site running.
