My MLB same-game parlay for April 15 focuses on the Reds vs. Mariners matchup at Great American Ball Park, with first pitch at 6:40 p.m. ET. Both teams feature strong starting pitchers and underwhelming offenses, presenting an opportunity for a low-scoring game.
Reds vs. Mariners Same-Game Parlay Today
Reds vs Mariners – Game Time: 6:40 p.m. ET
Same Game Parlay TodayBetOddsUNDER 7.5 Runs-110Castillo OVER 6.5 Ks-120NRFI-130Overall+519
Odds from Sportsbook
Reds vs Mariners Parlay Pick No. 1: UNDER 7.5 Runs (-110)
This game features two elite arms in a pitcher-friendly park by Great American Ball Park standards (at least early in the season with cooler temps). Seattle enters batting just .213 as a team with the third-highest strikeout rate in baseball. Cincinnati’s offense has been slightly better, but they’ve cooled off lately and haven’t been consistent against right-handed pitching. With both lineups scuffling and two capable bullpens behind the starters, it sets up well for a low-scoring affair.
Reds vs Mariners Parlay Pick No. 2: Luis Castillo OVER 6.5 Strikeouts (-120)
Castillo returns to his old home in Cincinnati and should be fired up for this one. He’s struck out 23 batters across his first three starts and has looked sharp while pounding the zone. The Reds have shown a tendency to chase and whiff against elite velocity and offspeed pitches, and Castillo has the kind of swing-and-miss arsenal to capitalize. He’s cleared 6.5 Ks in two of three starts this season and should be in line for a strong outing against his former club.
Reds vs Mariners Parlay Pick No. 3: NRFI Bet (-130)
It’s been a strange year with more YRFIs than NRFIs, but the Reds stand out with an MLB-best 11-5 NRFI record, thanks to back-to-back scoreless first innings. Seattle is 9-7. Both teams rely on solid pitching and weak offense. The Reds are hitting .179 through 16 games, while the Mariners are at .230.
Luis Castillo hasn’t faced his former team enough to draw conclusions (6-for-21, two extra-base hits, .776 OPS), but he’s 3-0 NRFI this season with a 0.00 ERA and only two first-inning hits (2-for-11). Nick Lodolo has been perfect, holding hitters to 0-for-9 in the first inning.
