SPORTS·SLATE·AI

Cardinals at Padres — MLB Odds, Starters, Weather · Saturday, May 9, 2026

St. Louis Cardinals logo
Cardinals
36-28
FINAL
24
Padres
35-32
San Diego Padres logo
FINAL · TOP 9TH
STL
2
SD
4
LAST PITMason Miller29P
LAST BATJJ WetherholtL
FINAL PLAY · JJ Wetherholt called out on strikes.
MONEYLINE · IMPLIED PROBABILITY
STL
POLY
KALSHI
SD
100¢
POLY100¢
KALSHI100¢
DISPERSION 1¢ · venues aligned · $2,964,927 combined volume · UPDATED 32D AGO
OUR TAKE · SPORTSSLATEAI MODEL
GENERATED 32D AGO
The market has this matchup priced appropriately with both teams projecting close to their implied probabilities. St. Louis and San Diego enter with similar offensive profiles at 4.5 and 4.2 runs per game respectively, while the Padres hold a modest defensive edge allowing 4.4 runs compared to the Cardinals' 4.8. With balanced fundamentals on both sides, there's no compelling reason to move off the market number.
RESULT: LOSS·STL 2-4 SD
VENUE
Petco Park
ROOF
Open
WEATHER
69°F · Mainly Clear
SW 7mph
WATCH
FOX
STARTERS
Dustin May headshot
Dustin May (R)
STL · 13 GS
ERA
4.21
WHIP
1.25
K/9
8.17
BB/9
2.48
IP
72.7
Randy Vásquez headshot
Randy Vásquez (R)
SD · 13 GS
ERA
3.63
WHIP
1.30
K/9
6.88
BB/9
2.60
IP
69.3
GAME PREVIEW · SPORTSSLATEAI
BY SPORTSSLATEAI·UPDATED 32D AGO·491 WORDS

The St. Louis Cardinals bring an 8-2 last-10 record into San Diego, riding their best stretch of the season against a Padres team that's struggled to find consistency at 3-7 over their last 10 games. While both clubs sit near .600 ball through 38 games, the underlying numbers reveal a Cardinals offense clicking at 4.79 runs per game against San Diego's more modest 4.29 RS/G production.

Jordan Walker continues to anchor St. Louis's offensive surge, posting a .960 OPS through 159 plate appearances with 10 home runs and 27 RBI. The right fielder's .302/.384/.576 slash line represents the Cardinals' most consistent power threat, while Iván Herrera has provided surprising value behind the plate at .837 OPS despite a modest .263 average. Alec Burleson rounds out the Cardinals' top trio at .818 OPS, giving St. Louis three regulars producing at an elite level. The Padres counter with Luis Campusano's small-sample excellence — the catcher's .958 OPS through just 58 plate appearances leads San Diego, though the limited exposure raises sustainability questions. Ty France (.845 OPS) and Miguel Andujar (.793 OPS) provide steadier production, but San Diego's offense lacks the depth that's fueled St. Louis's recent surge.

The pitching matchup tilts toward San Diego despite the Cardinals' superior recent form. Randy Vásquez brings a 3.20 ERA and 1.17 WHIP into his eighth start, striking out 22.4% of batters faced while limiting hard contact to 0.92 HR/9. The right-hander's 8.24 K/9 gives him a significant strikeout advantage over Cardinals starter Dustin May, whose 5.15 ERA and 1.53 WHIP through seven starts suggest ongoing command issues. May's 6.14 K/9 and elevated walk rate (2.21 BB/9) have contributed to inconsistent results, though his 0.74 HR/9 indicates he's avoided the big inning when he does find the zone.

The staff-wide numbers reinforce San Diego's pitching edge. The Padres' 4.19 ERA trails St. Louis's 4.33 mark, but more importantly, San Diego's 8.79 K/9 and 1.27 WHIP suggest better underlying fundamentals than the Cardinals' 7.03 K/9 and 1.38 WHIP. San Diego's superior strike-throwing (3.37 BB/9 vs. 3.73 BB/9) and home run prevention (0.90 HR/9 vs. 1.02 HR/9) could prove decisive against a Cardinals lineup that's been productive but not overwhelming at 4.79 RS/G.

The market's 56¢ price on San Diego reflects the home-field advantage and pitching edge, but the Cardinals' recent momentum and superior offensive depth create value on the visitor. St. Louis has outscored opponents by six runs despite playing a tougher schedule, while San Diego sits at exactly even run differential through 38 games. With both Polymarket and Kalshi aligned at 44¢ on the Cardinals, the pricing appears to underweight St. Louis's recent surge and Walker's continued production against a Padres team that's won just three of their last 10.

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
STL · 5-0 L5
W 10-3
vsCIN · 6/5
W 6-5
vsCIN · 6/6
W 5-3
vsCIN · 6/7
W 7-0
@NYM · 6/9
W 9-2
@NYM · 6/10
OLDEST → LATEST
SD · 3-2 L5
W 3-2
vsNYM · 6/6
L 3-7
vsNYM · 6/7
W 6-2
vsCIN · 6/8
L 3-5
vsCIN · 6/9
W 5-4
vsCIN · 6/10
OLDEST → LATEST
INJURIES
St. Louis Cardinals logo
STL2 ON IL
P
Louis Cardinals placed RHP Matt Pushard on the 15-day injured list retroactive to March 30, 2026. Right knee patellar tendinitis
15-DAY · 40D
3B
Louis Cardinals placed 3B Ramón Urías on the 10-day injured list. Right elbow lateral epicondylitis
10-DAY · 4D
San Diego Padres logo
SD8 ON IL
P
Jhony Brito
Right elbow surgery, UCL reconstruction
60-DAY · 82D
P
Yu Darvish
Details pending
RESTRICTED · 45D
P
Right elbow inflammation
15-DAY · 26D
P
Bryan Hoeing
Torn right elbow flexor tendon
15-DAY · 17D
P
Forearm nerve inflammation
15-DAY · 7D
2B
Concussion symptoms
7-DAY · 4D
P
Joe Musgrove
Details pending
15-DAY · 2D
C
Left toe fracture
10-DAY · 2D
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.