SPORTS·SLATE·AI

Astros at Orioles — MLB Odds, Starters, Weather · Tuesday, Apr 28, 2026

Houston Astros logo
Astros
30-38
FINAL
35
Orioles
32-35
Baltimore Orioles logo
MONEYLINE · IMPLIED PROBABILITY
HOU
POLY
KALSHI
BAL
100¢
POLY100¢
KALSHI100¢
DISPERSION 1¢ · venues aligned · $2,786,958 combined volume · UPDATED 43D AGO
OUR TAKE · SPORTSSLATEAI MODEL
GENERATED 43D AGO
The model sees Houston at 47.9% against the market's 44.0%, creating a theoretical edge on paper. However, with Baltimore's superior run prevention at 5.0 RA/G to Houston's 6.0 and both teams sitting near break-even in run differential, this projects as a coin flip. Standing down on what amounts to a marginal mispricing in an even matchup.
RESULT: LOSS·HOU 3-5 BAL
VENUE
Oriole Park at Camden Yards
ROOF
Open
WEATHER
62°F · Mainly Clear
SE 9mph · 1% precip
WATCH
MASN · Space City Home Network
STARTERS
Kai-Wei Teng headshot
Kai-Wei Teng (R)
HOU · 7 GS
ERA
3.71
WHIP
1.27
K/9
8.65
BB/9
4.24
IP
51.0
Shane Baz headshot
Shane Baz (R)
BAL · 13 GS
ERA
4.09
WHIP
1.38
K/9
7.71
BB/9
3.51
IP
77.0
GAME PREVIEW · SPORTSSLATEAI
BY SPORTSSLATEAI·UPDATED 43D AGO·559 WORDS

The Houston Astros carry a potent offensive threat into Baltimore despite their 11-18 record, led by Yordan Alvarez's scorching 1.229 OPS through 94 plate appearances. The left-handed slugger has launched eight home runs while posting a .333/.479/.750 slash line, providing the primary catalyst for Houston's 5.21 runs per game. Christian Vázquez adds surprising pop from the catching position with a 1.171 OPS, though his 33-plate-appearance sample carries obvious volatility concerns.

The Orioles counter with a more balanced but less explosive offensive approach, averaging 4.46 runs per game behind contributions from several role players. Leody Taveras leads qualified hitters with a .945 OPS through 44 plate appearances, while Jeremiah Jackson has provided power from second base with five home runs and a .600 slugging percentage. Adley Rutschman's .856 OPS represents steady production from behind the plate, though Baltimore's offensive ceiling appears more limited than Houston's despite the Astros' poor record.

Tonight's pitching matchup heavily favors the home team, with Shane Baz taking the mound for Baltimore against Houston's Kai-Wei Teng. Baz enters with a 4.91 ERA across 22.0 innings in four starts, posting a 1.55 WHIP that suggests some control issues but maintaining respectable strikeout numbers at 7.77 K/9. The right-hander has limited home run damage with just 0.82 HR/9, a crucial factor against Houston's power-heavy lineup.

Teng presents a more volatile option for the Astros, working primarily in relief with just 11.7 innings across eight appearances. His 2.31 ERA looks impressive on the surface, but the small sample and reliever usage pattern make this a questionable spot start. The right-hander's 8.48 K/9 shows strikeout ability, yet his 3.08 BB/9 walk rate could prove problematic against Baltimore's patient approach.

The broader pitching context strongly supports Baltimore's chances. The Orioles' staff has posted a 3.86 ERA compared to Houston's disastrous 6.15 mark, with Baltimore showing superior command at 3.55 BB/9 versus Houston's 5.76 BB/9. The Astros have allowed 31 home runs in 181.3 innings while Baltimore has surrendered just 19 in similar workload, highlighting a stark difference in run prevention ability.

Houston's recent form compounds their pitching concerns, managing just a 3-7 record over their last 10 games while scoring at their season average but allowing runs at an unsustainable clip. Baltimore's 4-6 mark in their last 10 represents modest improvement over their overall .464 winning percentage, though both teams enter this series struggling to find consistent momentum.

The prediction markets price Baltimore as a 56-cent favorite with perfect agreement between Polymarket and Kalshi, implying the Orioles win roughly 56% of the time. This pricing appears conservative given the substantial pitching advantage Baltimore holds, both in tonight's starter matchup and overall staff quality. Houston's offensive upside with Alvarez and supporting cast creates variance, but the Astros' pitching struggles and poor recent form suggest the market may be undervaluing Baltimore's edge in this spot.

The data points toward Baltimore capitalizing on their pitching advantage against a Houston team that has struggled to prevent runs consistently. While the Astros possess the offensive firepower to steal games, their 6.15 staff ERA and Teng's uncertain role make this a favorable spot for the home team at Camden Yards.

If you or someone you know has a gambling problem, call 1-800-GAMBLER. Must be 21+. Market prices sourced from prediction markets (Polymarket, Kalshi), not traditional sportsbooks.

RECENT FORM · LAST 5
HOU · 3-2 L5
W 5-1
vsOAK · 6/5
W 13-2
vsOAK · 6/6
L 0-5
vsOAK · 6/7
W 5-4
@LAA · 6/8
L 1-10
@LAA · 6/9
OLDEST → LATEST
BAL · 1-4 L5
L 4-6
@TOR · 6/6
L 4-6
@TOR · 6/7
L 3-6
vsSEA · 6/8
L 5-6
vsSEA · 6/9
W 7-2
vsSEA · 6/10
OLDEST → LATEST
INJURIES
Houston Astros logo
HOU15 ON IL
P
Brandon Walter
Left elbow surgery recovery
60-DAY · 34D
P
Right elbow surgery recovery
15-DAY · 34D
LF
Right elbow sprain
10-DAY · 34D
P
Hayden Wesneski
Recovery from right elbow surgery
15-DAY · 29D
P
Right shoulder strain
15-DAY · 26D
CF
Grade two right oblique strain
10-DAY · 19D
P
Ronel Blanco
Right elbow surgery recovery
15-DAY · 18D
P
Right arm fatigue
15-DAY · 16D
SS
Grade one hamstring strain
10-DAY · 16D
P
Details pending
15-DAY · 15D
P
Left biceps tendinitis
15-DAY · 11D
LF
Right quad strain
10-DAY · 10D
SS
Mid-back spasms
10-DAY · 9D
P
Grade two right shoulder strain
15-DAY · 8D
CF
Left groin strain
10-DAY · 7D
Baltimore Orioles logo
BAL9 ON IL
P
Colin Selby
Right shoulder inflammation
60-DAY · 73D
2B
Right hamate surgery
10-DAY · 37D
LF
Heston Kjerstad
Right hamstring strain
10-DAY · 37D
3B
Jordan Westburg
Right elbow UCL sprain
10-DAY · 27D
P
Left foot infection
15-DAY · 24D
P
Right elbow discomfort
15-DAY · 21D
1B
Left foot fracture
60-DAY · 15D
P
Right shoulder inflammation
15-DAY · 15D
P
Right quad strain
15-DAY · 8D
If you or someone you know has a gambling problem, call 1-800-GAMBLER. Must be 21+. Market prices sourced from prediction markets (Polymarket, Kalshi), not traditional sportsbooks.