PIT @ STL

Sunday · August 30, 2026·full·gamePk 823010free Saturday
refreshed 649h 15m ago both lineups confirmed

weather · Busch Stadium

gametime 2:15 PM EDT · open-meteo
temperature
93°F
humidity 31%
wind
7 mph
out to CF
precip
0%
clear
park
STL
open · HP→CF 4°
CFHP1B3BOUT
wind impact on total
+0.22 R/Gminor out

Minor wind out: +0.22 R/G vs neutral. _Busch's open bowl — summer south winds slightly aid HR; spring north winds suppress_

starters · IP-weighted 2025+2026

metricBraxton AshcraftRHP · PITMatthew LiberatoreLHP · STL
xERA 20263.414.94
xwOBA 20260.2870.340
wOBA−xwOBA 20260.0030.014
xERA 20253.414.86
xwOBA 20250.2880.339
Outs/TB 25-262.171.73
FIP 25-263.314.24
kwERA 25-263.113.73
K% 25-2625.4%20.9%
BB% 25-266.3%7.0%
IP 25+26 combined225.0280.7
ERA actual 20263.595.44
ERA (L4)2.627.97
WHIP (L4)0.751.33
K% (L4)18.2%28.7%
BB% (L4)3.4%4.6%
IP/gm (L4)6.005.08
L4 window08/01→08/24 (4 st)08/08→08/25 (4 st)
Stuff+ last 3 (Δ szn)111 (+4)97 (−1)
SIERA last 3 (Δ szn)2.91 (−0.41)3.32 (−0.66)
Arsenal RV/1000.61-0.78

away arsenal — PIT

RV/100 0.61
  • 4-Seam Fastball—-1.00xwOBA 0.329
  • Curveball—+2.00xwOBA 0.226
  • Slider—+0.00xwOBA 0.283
  • Sinker—+2.60xwOBA 0.308
  • Split-Finger—-0.40xwOBA 0.294

home arsenal — STL

RV/100 -0.78
  • 4-Seam Fastball—-0.30xwOBA 0.390
  • Slider—-0.10xwOBA 0.261
  • Curveball—-1.10xwOBA 0.244
  • Changeup—-0.50xwOBA 0.399
  • Sinker—-2.20xwOBA 0.384
  • Cutter—-5.30xwOBA 0.379

away · PIT vs LHP

confirmed
Σ xwOBA
2.894
Σ match
3.076
Σ FRV
+1.7
#posbatterxwOBAmatchFRV
1SSJared Triolo0.2910.305-0.5
2DHOneil Cruz0.3570.380-0.5
3LFBryan Reynolds0.3480.373-3.5
4CRafael Flores Jr.0.3450.350+0.0
52BBrandon Lowe0.3200.349+9.2
6RFEsmerlyn Valdez0.3360.359-1.9
7CFJake Mangum0.2850.301+2.7
81BSpencer Horwitz0.3170.341-3.4
93BNick Yorke0.2950.319-0.3

home · STL vs RHP

confirmed
Σ xwOBA
2.803
Σ match
2.624
Σ FRV
-9.3
#posbatterxwOBAmatchFRV
1LFBryan Torres0.2960.273+2.9
2CIván Herrera0.3310.307-4.0
31BAlec Burleson0.3800.359+3.8
4RFJordan Walker0.3540.314-6.7
5DHNolan Gorman0.2800.277+0.3
62BJosé Fermín0.2950.279-3.5
7CFNathan Church0.2850.263+0.6
83BRamón Urías0.3120.292-2.8
9SSThomas Saggese0.2700.259+0.1

defense · PIT catcher (Savant FRV)

Rafael Flores Jr.
  • FRV+0.0
  • framing+0.6
  • blocking-0.1
  • throwing-1.1

defense · STL catcher (Savant FRV)

Iván Herrera
  • FRV-4.0
  • framing-0.9
  • blocking+0.2
  • throwing-3.3

PIT · Braxton Ashcraft

Last outing 2026-08-24 vs SD · 6.0 IP

Latest-start ratings unavailable: the provider rating has not been matched to this official outing.

MetricPrior gamesLatest (Δ)Last 3
Stuff+——111
Location+——112
Pitching+——118
botOvr——65
SIERA——2.91

Last 3 starts: 2026-08-06 → 2026-08-24. 0/3 outings have verified ratings.

Complete-window ratings are pending. Available dated context:

Prior games = unweighted average before 2026-08-24; SIERA here is an average of game ratings, not aggregate season SIERA. Stuff+ family: 100 average. PitchingBot: 50 average. Lower SIERA/botERA is better.

STL · Matthew Liberatore

Last outing 2026-08-25 vs BAL · 4.0 IP

Latest-start ratings unavailable: the provider rating has not been matched to this official outing.

MetricPrior gamesLatest (Δ)Last 3
Stuff+——97
Location+——99
Pitching+——96
botOvr——49
SIERA——3.32

Last 3 starts: 2026-08-14 → 2026-08-25. 0/3 outings have verified ratings.

Complete-window ratings are pending. Available dated context:

Prior games = unweighted average before 2026-08-25; SIERA here is an average of game ratings, not aggregate season SIERA. Stuff+ family: 100 average. PitchingBot: 50 average. Lower SIERA/botERA is better.

Bullpen depth chart · per side

Derived = season-usage role from pitcher-profiles.json. Card tag = what tonight's card thinks. When they disagree, the sim picker may target wrong arms in save windows. Mean IP/app distinguishes 1-IP relievers from bulk arms.

PIT · bridge (non-closer, 6-8)7 arms · kwera
0.39R / inningband [0.35–0.42]
0.092 R/PA · 0.130 R/out · worst: Camilo Doval (4.03)
STL · bridge (non-closer, 6-8)8 arms · kwera
0.45R / inningband [0.36–0.55]
0.107 R/PA · 0.152 R/out · worst: Gordon Graceffo (4.85)

PIT

PitcherDerivedCardFIPK%BB%Mean IPSV/HD/GFTrend
Gregory SotoCLOSERSU3.3027.89.80.9914/10/21stable
Kirby YatesCLOSERMR3.3327.710.20.873/0/15stable
Luke WeaverSETUPSU2.6627.17.01.051/16/4stable
Evan SiskSETUPMR3.4826.411.01.140/5/5stable
Yohan RamírezSETUPMR3.6127.413.41.282/6/8stable
Mason MontgomeryOPENERCL2.2239.79.80.976/9/7stable
Lake BacharOPENERLR4.6325.09.71.532/1/10stable
Camilo DovalMOP_UPMR4.5323.311.90.901/5/10stable

STL

PitcherDerivedCardFIPK%BB%Mean IPSV/HD/GFTrend
Riley O'BrienCLOSERCL3.6223.09.80.9934/1/33stable
Justin BruihlSETUPMR3.8315.08.51.110/10/5ramping up
George SorianoSETUPSU4.5723.010.70.982/20/7stable
Ryne StanekSETUPSU4.8524.212.30.892/24/5stable
Brycen MautzBULKMR3.4134.510.33.000/0/1insufficient data
Ryan FernandezMRMR3.2228.110.11.210/2/4ramping down
Luis GastelumMRMR4.1631.26.21.000/1/1stable
Gordon GraceffoMRMR4.2416.011.51.181/6/10stable
Cade WinquestunknownLR2.5833.316.7—0/0/0—

glossary

Pitcher metrics

  • xERA (Savant): Statcast's expected ERA, derived from xwOBA. Strips defense/luck — what the pitcher's contact quality says he should have given up.
  • xwOBA (Savant): Expected wOBA. Treats each batted ball by exit velo + launch angle (independent of where defenders stood). Lower = better for pitcher.
  • wOBA-xwOBA (Savant): Actual minus expected. Negative = the pitcher has been UNLUCKY (better than results show). Positive = LUCKY (worse than results show).
  • Outs/TB: Outs recorded ÷ total bases allowed. Custom efficiency metric. Higher = more efficient. Starter range typically 1.5–3.0.
  • FIP: Defense-independent ERA estimator using only K/BB/HBP/HR. Removes BABIP luck. Same scale as ERA.
  • kwERA: Strikeout-and-walk-only ERA estimator. 5.40 − 12·(K−BB)/PA. Strips contact entirely. K-BB% is the most stable pitcher skill.
  • K% / BB%: Strikeouts / walks as a share of total batters faced.
  • IP (25+26 combined): Total innings across the prior + current season — defines the IP-weight on combined stats.
  • Arsenal RV/100 (Savant): Run Value per 100 pitches, weighted across the pitcher's mix. POSITIVE = stuff playing well for the pitcher. Substitute for FanGraphs Stuff+.

Batter metrics

  • AVG/OBP/SLG: Standard slash line, current season.
  • vs L/RHP AVG/OBP/SLG (PA): Same line, but only against pitchers of the hand the batter is facing tonight. PA = sample size — small samples (<50 PA) are noisy.
  • xwOBA / xBA / xSLG (Savant): Statcast expected stats for the batter, based on contact quality.
  • xwOBA(25) (Savant): Last year's xwOBA. Useful when current-year sample is thin.
  • FRV (Savant): Fielding Run Value. Range + arm + framing + blocking + DP turns. Cumulative — early-season values are small.
  • Match xwOBA: Projected weighted xwOBA against this specific pitcher's pitch mix. Per pitch (with usage %), look up batter's xwOBA vs that pitch type, weighted average.
  • Cov%: Share of opposing pitcher's pitch usage where we have direct batter-vs-pitch data. Lower coverage = less reliable matchup score.

Lineup status

  • 🟢 CONFIRMED: Posted by the team via MLB Stats API. This is the actual lineup playing.
  • 🟡 EXPECTED: Projected from the team's last 21 days of starts vs the same handedness, with current IL filtered out. Refreshes ~T-90 min before first pitch.

Data sources

  • MLB Stats API (statsapi.mlb.com): schedule, lineups, raw counting stats (K/BB/HR/IP/AVG/etc.), L/R splits.
  • Baseball Savant (Statcast): xERA/xwOBA, pitch arsenal, Fielding Run Value, expected stats. Descriptive only — no projection system.
  • Baseball Prospectus: DRC+ + PECOTA when authed.
  • Open-Meteo: Weather forecast rotated to the park.

Post-game

actual vs projected
Final total
9
5 PIT · 4 STL
Projected total
—
Delta
—
actual − projected
Band cover
—

PIT

5 R

8H · 2HR · 4BB · 15K · 16LOB

OBPe 0.300 · SLGe 0.444 · K% 37.5

Their pitching

9.0 IP · 4 ER · 6 K · relief 4.0 IP · 6 arms

STL

4 R

9H · 0HR · 3BB · 6K · 16LOB

OBPe 0.308 · SLGe 0.286 · K% 15.4

Their pitching

9.0 IP · 4 ER · 15 K · relief 3.3 IP · 4 arms

PIT · standout lines

big nights
  • Jared Triolo (SS) · 1-4 | HR, BB, 2 KHR
  • Esmerlyn Valdez (RF) · 1-4 | HR, K, 2 RBIHR
tough nights
  • Rafael Flores Jr. (C) · 0-4 | BB, 2 K0-for-4 · 2 K
  • Nick Yorke (3B) · 0-4 | 3 K0-for-4 · 3 K

STL · standout lines

big nights
  • Thomas Saggese (SS) · 3-4 | 2 R3 H
tough nights
  • Jordan Walker (RF) · 0-4 | 2 K0-for-4 · 2 K
  • Nolan Gorman (DH) · 0-40-for-4
  • Nathan Church (CF) · 0-4 | K0-for-4
sources · MLB Stats API · Baseball Savant · Baseball Prospectus · Open-Meteo · reference, not picks