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MLBGame PreviewsSeattle Mariners at Chicago White Sox
Seattle MarinersSeattle Mariners
@
Rate Field
Chicago White SoxChicago White Sox

Match Predictor

Pre-match Prediction
Seattle Mariners
@
Chicago White Sox
Seattle Mariners 56%Chicago White Sox 44%
Market LinesRun Line: Seattle Mariners -1Total: O/U 8
Model: Under 8
Model projects 7.7 total runs vs 8 line

Seattle Mariners

0022446688101012121414OVERUNDERO/U 8Runs ScoredRuns Allowed
All Over 8
34%
13/38
MLB: 48%
Starter
43%
3/7
vs CHW
Avg Total
7.9
MLB: 8.9
Game Starter (7) Last Starter vs CHW vs CHW (0)
Emerson Hancock #26 · RHP · Age 27
2.59
ERA (2026)
10.0
K/9 (2026)
7
Starts (2026)
8.1
Avg Total (2026)
Last 3:
ND KC (May 02): 7.0IP, 1ER, 14K
ND @STL (Apr 26): 6.0IP, 2ER, 4K
ND ATH (Apr 20): 5.0IP, 3ER, 3K
vs CHW: ND (Jun 13 2024): 7.0 IP, 2 ER, 1 K
Bullpen (2026 Season)Average
ERA: 3.68MLB Avg: 3.957 relievers
Recent: L 2-3L 1-4W 5-4L 2-3W 3-1
Lineup vs Emerson Hancock (Career)
BatterPosPAAVGOPSHR
Andrew BenintendiLF3.5001.1670
12 batters with no matchup history

Chicago White Sox

0022446688101012121414OVERUNDERO/U 8Runs ScoredRuns Allowed
All Over 8
54%
20/37
MLB: 48%
Starter
40%
2/5
vs SEA
Avg Total
8.8
MLB: 8.9
Game Starter (5) Last Starter vs SEA vs SEA (0)
Sean Burke #59 · RHP · Age 27
2.72
ERA (2026)
7.3
K/9 (2026)
5
Starts (2026)
9.2
Avg Total (2026)
Last 3:
W @SD (May 02): 6.0IP, 0ER, 8K
ND WSH (Apr 26): 7.1IP, 0ER, 4K
W @ARI (Apr 21): 6.0IP, 2ER, 3K
Bullpen (2026 Season)Average
ERA: 3.66MLB Avg: 3.9511 relievers
Workload Alert: Allowed 8 runs on 2026-05-06 vs LAA. Bullpen arms likely still recovering.
Recent: W 4-0L 3-4W 6-0L 3-4L 2-8
Lineup vs Sean Burke (Career)
BatterPosPAAVGOPSHR
Josh Naylor1B3.10004.0001
12 batters with no matchup history
Our Top PicksLive Odds
Top PickWhite Sox Moneyline (+122, MEDIUM)
The market puts Chicago at 45% to win, and that number is wrong given what Burke is doing right now.
PickWhite Sox +1.5 Run Line (-137, MEDIUM)
Even in a loss, Burke's transformed command makes Chicago a realistic cover.
PickUnder 8.0 Total Runs (-125, LOW)
This isn't a number play.

Seattle Mariners vs Chicago White Sox Game Preview

In tonight's MLB action, the story at Rate Field isn't the standings. It's two pitchers who looked like roster filler a year ago and now look like staff aces. Chicago White Sox right-hander Sean Burke lines up against Seattle Mariners starter Emerson Hancock, and the number that defines this game is 1.81. That's Burke's walk rate in 2026, down from 4.22 BB/9 last season when he issued 63 free passes in 134.1 innings. That single-season collapse from chronic-control-issue territory to near-elite command is the biggest pitching development on tonight's card, and the market hasn't fully caught up.

Burke hasn't allowed an earned run in his last two starts combined, spanning 13.1 innings and 12 strikeouts. May 2 outing in San Diego was a six-inning, eight-strikeout clinic. Hancock is matching that energy from the other dugout. The Seattle righty holds a 2.59 ERA in 2026 after back-to-back seasons above 4.75, and he punched out 14 batters in his most recent start without issuing a single walk. He's thrown just 6 walks in 41.2 innings this season. These two figured out the same thing at the same time, in the same division, in the same year. That's a rare setup, and it points toward a low-scoring game.

Chicago returns home after losing two of three in Los Angeles, but the 10-game sample tells a better story: the White Sox are 6-4 in that stretch and 11-9 over their last 20. The Mariners are a flat 5-5 over their last 10 and bring a .696 team OPS into this road start. Seattle's lineup against right-handed pitching is 13-13 on the season with no real power threat at the top. Leo Rivas, hitting .143 over 109 plate appearances, holds a .533 OPS against righties. The lineup isn't built to punish a pitcher like Burke.

The contrarian case deserves airtime. Chicago's bullpen carries a 4.26 BB/9 team rate, the worst in this game. Jordan Leasure was optioned to Triple-A after posting a 6.06 ERA and three blown saves in 16 appearances. His replacement, Trevor Richards, was acquired from Philadelphia on May 7. As one analyst put it: "I don't actually believe that Chicago landed Richards with the hope that he would be a significant contributor for a playoff run," suggesting the White Sox made the move "with the intention of flipping him at the MLB trade deadline." If Burke exits before the seventh, the Chicago relief corps is a structural liability.

Seattle Mariners vs Chicago White Sox Key Insights

  • Sean Burke's walk rate has dropped from 4.22 BB/9 in 2025 to 1.81 BB/9 in 2026, with 13.1 consecutive scoreless innings across his last two starts. This is a genuine mechanical transformation, not a small-sample blip over 39.2 innings.
  • Emerson Hancock's only career start against Chicago produced just 1 strikeout in 7.0 innings. His last three starts: 14, 4, and 3 strikeouts. The median is 4. The 14-K game in Kansas City looks like the outlier, not the floor.
  • Both offenses are weak against right-handed pitching. Seattle is 13-13 vs. RHP on the season with a .696 team OPS. Chicago sits at .702. Neither lineup is built to punish starters who throw strikes, which plays into both pitchers' current form.
  • Rate Field carries a home run park factor of 1.08. Munetaka Murakami is the one bat in this game capable of changing the score in a single swing, with 14 home runs in 160 plate appearances and a .980 OPS over the last 28 days.
  • This is Game 1 of a series with fresh bullpens on both sides. Series openers historically suppress run totals, and the starting quality on the mound here supports a quiet first six innings. The risk is late, when Chicago's relief corps takes over.
  • Seattle enters as slight favorites at -132 on the moneyline, implying 56.8% win probability. That market price overweights a team that is 6-9 on the road this season and 5-5 over its last 10, against a pitcher coming off back-to-back shutout performances at home.

Seattle Mariners vs Chicago White Sox Betting Picks

Picks made May 08, 2026 at 04:16 AM ET. Odds shown reflect current market prices.

White Sox +1.5 Run Line (-137, MEDIUM)
White Sox +1.5 Run Line (-137, MEDIUM): Even in a loss, Burke's transformed command makes Chicago a realistic cover. The gap between these teams on paper is thin, and with both starters pitching at a high level in a series opener, a one-run game or a tight defeat is the realistic floor for the White Sox. The market's 57.8% implied probability on this line is beatable given how closely matched this pitching duel figures to be.
Under 8.0 Total Runs (-125, LOW)
Under 8.0 Total Runs (-125, LOW): This isn't a number play. It's a genuine pitching case. Burke has 13.1 consecutive scoreless innings. Hancock has walked only 6 batters in 41.2 innings and sits at a 2.59 ERA. Both teams score between 4.0 and 4.2 runs per game. Series opener with fresh bullpens. The supporting structure is real. LOW confidence because the math sits right on the line, so there's no mathematical cushion. But if either starter pitches six-plus clean innings, this total stays well below 8.
Emerson Hancock Under 5.5 Strikeouts (-137, MEDIUM)
Emerson Hancock Under 5.5 Strikeouts (-137, MEDIUM): One career start against Chicago: 1 strikeout in 7.0 innings. His last three starts: 14, 4, and 3 strikeouts. Two of those three land well under 5.5. The 14-K performance at Kansas City is the data point that inflates his average, but the median tells the real story. Four strikeouts is the more likely outcome against a Chicago lineup with no extreme strikeout tendency. The history against this specific club matters.
Munetaka Murakami to Hit a Home Run (+260, MEDIUM)
Munetaka Murakami to Hit a Home Run (+260, MEDIUM): Fourteen home runs in 160 plate appearances. A .980 OPS over the last 28 days. Hancock has allowed 7 home runs in 41.2 innings in 2026, a 1.51 HR/9 rate. Rate Field's 1.08 home run park factor adds a small lift. The market prices this at +260, implying 27.8%. Murakami's per-PA rate puts the true probability closer to or above that threshold. He is the one bat in this game that can flip the score with a single swing, and the environment favors him.
Leo Rivas Under 0.5 Hits (-132, MEDIUM)
Leo Rivas Under 0.5 Hits (-132, MEDIUM): Rivas is hitting .143 over 109 plate appearances. That's a legitimate sample, not early-season noise. His OPS against right-handed pitching sits at 0.533. Hancock has 46 strikeouts in 41.2 innings in 2026 with near-elite walk prevention: 6 BB in 41.2 IP. The market implies 56.8% for the under on Rivas. Given a .143 average over 100-plus plate appearances against a pitcher in peak command, the true probability of a hitless game is likely higher than that.
Colson Montgomery Over 1.5 Total Bases (+130, LOW)
Colson Montgomery Over 1.5 Total Bases (+130, LOW): Montgomery has 9 home runs with a .485 slugging percentage and an L28d OPS of .893, the strongest recent form of any White Sox position player. Getting over 1.5 total bases requires an extra-base hit or a multi-hit night. Hancock's last three starts produced K totals of 14, 4, and 3. On the low-strikeout days, hitters are making contact. Rate Field's HR factor tilts toward power. No career BvP data to suggest Hancock suppresses Montgomery specifically. At +130, the power profile justifies the price despite LOW confidence.
Sean Burke Under 5.5 Strikeouts (-167, LOW)
Sean Burke Under 5.5 Strikeouts (-167, LOW): Burke's last three starts: 8, 4, and 3 strikeouts. The average sits at 5.0. Two of three outings landed well under 5.5. His 2026 season rate of 7.26 K/9 shows the upside is real, but the per-start output has been inconsistent. Seattle's .696 team OPS doesn't generate a ton of swing-and-miss opportunities. The -167 juice is the limiting factor here. LOW confidence, but the three-start trend is clear: he's averaging below the line.
SGP
SGP: White Sox +1.5 / Under 8.0 / Hancock Under 5.5 K / Leo Rivas Under 0.5 Hits: These four legs build on the same game narrative. A low-scoring environment, driven by both starters working efficiently, supports Chicago staying within 1.5 runs and the total staying under 8. Hancock's strikeout under and Rivas's hit under fit a game where pitchers suppress hard contact without necessarily dominating via strikeouts. The legs point in the same direction and reinforce each other.
Analysis insight — no specific bet associated
NRFI (-141, LOW)
NRFI (-141, LOW): First-inning splits for Burke and Hancock are not available in the data, so this is built on overall 2026 form. Burke has not allowed an earned run in 13.1 consecutive innings. Hancock carries a 2.59 ERA with 6 walks in 41.2 innings. Neither team scores at a high rate, 4.0 to 4.2 runs per game, and neither is known for first-inning aggression. The market at -141 (roughly 58.5% implied) is a fair price given the starter quality. LOW confidence without verified first-inning splits, but the lean is NRFI.

Key Players

Batting AverageSEA
Cole Young
.276Batting Average
2B
Home RunsSEA
Cal Raleigh
7Home Runs
C
Runs Batted InSEA
Cole Young
20Runs Batted In
2B
Earned Run AverageSEA
Emerson Hancock
2.59Earned Run Average
SP
WinsSEA
George Kirby
4Wins
SP
StrikeoutsSEA
Emerson Hancock
46Strikeouts
SP
Batting AverageCHW
Chase Meidroth
.278Batting Average
2B
Home RunsCHW
Munetaka Murakami
14Home Runs
1B
Runs Batted InCHW
Munetaka Murakami
28Runs Batted In
1B
Earned Run AverageCHW
Davis Martin
1.64Earned Run Average
SP
WinsCHW
Davis Martin
5Wins
SP
StrikeoutsCHW
Davis Martin
43Strikeouts
SP

Recent Form

Seattle Mariners
L4-1Kansas City Royals
W5-4Atlanta Braves
L3-2Atlanta Braves
W3-1Atlanta Braves
Chicago White Sox
W4-0San Diego Padres
L4-3San Diego Padres
W6-0Los Angeles Angels
L4-3Los Angeles Angels
L8-2Los Angeles Angels

Seattle Mariners vs Chicago White Sox Summary

The edge in this game runs through both starters, and the bigger story is Burke. A pitcher with a documented command problem last season has rewritten his profile in 2026. The walk rate doesn't lie over 39 innings, and 13.1 scoreless innings across two starts isn't noise. The White Sox moneyline at +122 is where the real value sits. You're getting plus-money on a pitcher coming off the best back-to-back starts of his career, at home, against a Seattle lineup that is 6-9 on the road and 5-5 over its last 10. The run line at +1.5 adds a margin for error if Hancock outduels him. The under at 8.0 is the lowest-confidence play of the three, sitting right on the market number, but the pitching case is legitimate.

The best single play here is the White Sox moneyline. The best angle for a smaller stake is the Hancock strikeout under. His one career start against Chicago produced a single strikeout in seven innings, and his last three starts show a median of 4 Ks. That history against this specific lineup is the clearest edge on the props board. The risk in all of this is the Chicago bullpen. If Burke doesn't reach the seventh, the White Sox relief corps is thin and fragile, and a quiet game can get loud in a hurry. Play the picks, keep the sizes reasonable, and let the pitching tell the story.

Neither starter is guaranteed to replicate their recent brilliance. Baseball rewards patience and process over certainty. The structure here favors a tight, low-scoring game, but variance is always in the room. For the full slate, see our MLB picks today, NRFI picks, and player props.

Head-to-Head History

Season SeriesCHW win series 2-1
DateMatchupResult
Feb 24, 2026CHW @ SEACHWCHW 12-10
Mar 07, 2026CHW @ SEACHWCHW 5-1
Mar 23, 2026SEA @ CHWSEASEA 4-2

Compare odds for SEA @ CWS

Frequently Asked Questions

MLBGame PreviewsSeattle Mariners at Chicago White Sox