Archived pregame breakdown. This is how the matchup looked before first pitch on September 15, 2026: the odds, projected lineups and picks shown were pregame numbers and are not live. See today's games
San Francisco Giants
62-88
@
St. Louis Cardinals
75-76
7:45 PM ET Busch Stadium NBCS BA

Back the under 8.5 with wind blowing in from right and two walk-prone arms who limit damage.

The park is working against fly balls tonight and neither offense profiles as an explosion.

SidePASS
TotalBET UNDER 8.5
Lean5/10
Confidence
  • Wind 9 mph in from RF carries a negative run impact.
  • SF offense ranks 24/30 at just 4.19 runs per game.
  • De-vigged team totals of 4.0 and 4.5 sum to 8.5.
Best Bet Under 8.5, backed by wind blowing in from right and two contact-oriented offenses.
Total8.5
SF Win42%
STL Win62%
Implied SF4.0
Implied STL4.5

Vegas / Market

Total
8.5
Run line
STL 1.5
SF ML
+138 42%
STL ML
-164 62%
SF4.0
STL4.5

The de-vigged team totals of SF 4.0 and STL 4.5 add up exactly to the posted 8.5, meaning the number is efficiently priced with no obvious side value. STL at -164 implies a heavy favorite tag that the modest offensive ranks do not fully justify. The cleaner edge is the total, where the environment beats the closing number.

Pitching Matchup

SF
Landen Roupp
9-14 · 155.0 IP
ERA
4.01
WHIP
1.30
K/9
8.3
BB/9
4.4
VS
STL
Quinn Mathews
2-3 · 37.1 IP
ERA
3.62
WHIP
1.39
K/9
8.7
BB/9
3.9

Roupp misses bats at 8.30 K/9 but his 4.35 BB/9 constantly invites traffic, while Mathews carries a similar profile with 8.73 K/9 and 3.88 BB/9 over just 37.1 innings. Neither owner brings pinpoint command, so the edge is razor thin, with Mathews' shinier 3.62 ERA offset by a shakier 1.39 WHIP and tiny sample. Call it a wash with both prone to free passes.

Offense Comparison

SFRank of 30STL
4.2 #24 Runs / G 4.5 #12
0.247 #12 AVG 0.243 #18
1.14 #16 HR / G 1.04 #22
8.06 #21 K / G 7.87 #25

St. Louis sports the better lineup shape here, ranking 12th in runs against SF's 24th, though the Cardinals' 22nd-ranked HR rate limits ceiling stacks in a suppressed park. San Francisco strikes out at a middling 8.06 per game and lacks thump against Mathews, giving neither side a slam-dunk stack tonight. Both offenses lean contact over power, favoring a lower-scoring script.

Weather & Park

CFN
At first pitch · 7:45 PM ET
9 mph in from RF · favors pitchers
Conditions
Patchy rain nearby
Temp
77°
Rain
32%
Humidity
87%
humid, lighter air, slight carry
Now: 75° · 8 mph out to LF · Sunny

Outdoor at Busch with a 9 mph wind in from right field flagged as a negative for run scoring, plus 87% humidity and a 32% rain chance that could interrupt play. Everything about the conditions points toward fewer balls carrying out.

DFS Angles

If forced to stack, lean St. Louis for its 12th-ranked offense, but keep exposure light since the wind in from RF punishes their fly-ball hitters and the park suppresses homers.

Both arms are risky given elevated walk rates, but Mathews offers cash-game upside at his higher strikeout rate; treat Roupp as a GPP-only dart given 4.35 BB/9.

SF top bats
  • Bryce Eldridge 8.2 proj · $3,800 · 2.2x
  • Brett Harris 7.5 proj · $2,000 · 3.8x
  • Jonah Cox 7.3 proj · $3,700 · 2.0x
  • Turner Hill 6.9 proj · $3,200 · 2.2x
  • Shay Whitcomb 6.5 proj · $2,800 · 2.3x
STL top bats
  • Alec Burleson 8.2 proj · $4,900 · 1.7x
  • Ivan Herrera 7.9 proj · $4,400 · 1.8x
  • Jordan Walker 7.4 proj · $5,400 · 1.4x
  • Thomas Saggese 7.4 proj · $2,800 · 2.6x
  • Leo Bernal 7.1 proj · $3,500 · 2.0x

Players to Watch

Prop leans
  • Alec Burleson - hits over lean - top STL projection at 1.10 hits and $4900.
  • Ivan Herrera - hits over lean - 1.08 projected hits batting second.
  • Bryce Eldridge - under HR interest - just 0.22 projected HR in a suppressed park.
  • Leo Bernal - RBI lean - team-high 0.80 projected RBI at $3500.
On watch
  • Quinn Mathews - tiny 37.1-inning sample makes his true form uncertain.
  • Landen Roupp - 4.35 BB/9 could unravel quickly if command wavers.
  • Jordan Walker - $5400 tag needs power that the park may take away.
  • Thomas Saggese - leadoff spot and 2.62x value make him a cheap pivot.
View all SF & STL props →

Form & Head-to-Head

Season series: SF 3 – STL 1

San Francisco leads the season series 3-1.

Today's MLB Slate

Swipe for all 15 games on the board.
Updated Sep 15, 9:27 AM ET For entertainment and informational purposes only; not betting or gambling advice.