Mithrandir Metrics
Hitter projection 2026 Refreshed Sep 29 06:00 AM ET
Hitter projection / STL · 2026

Prieto, César

Everyday offensive profile with usable floor

Primary
0.241 xwOBA
Range
0.075 to 0.273
Live Δ
--
Team STL Archetype Balanced regular Age 27 Status Healthy / active roster
At a glance

Season percentile report

The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.

2026-09-29
44
Offense
percentile
Defense1 metrics
47
Speed1 metrics
26
Plate skills10 metrics
45
Rolling projection

Preseason / current pace / Bayesian update

Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.

2026-09-29
xwOBA preseason0.227
xwOBA current pace0.262
xwOBA rolling p500.232
Observed weight15%
xwOBA
0.147 0.187 0.232 0.277 0.317
wOBA
0.044 0.074 0.108 0.141 0.172
ISO
0.000 0.024 0.069 0.113 0.154
K%
10.6% 15.0% 19.8% 24.7% 29.1%
Current percentile strip

Actual percentile with projection tick

100th = best in MLB.

2026-09-29
Defense · percentile strip
Outs Above Avg0.0 · 3B
47
Range Runs1.0 · 3B
Small sample
Baserunning · percentile strip
Sprint Speed26.5 · 3B
26
Mithrandir+

SEAGER+ and decision components

SEAGER+ is the promoted plate-discipline index; component rows marked rebadged research are visible diagnostic context, not standalone promoted metrics.

2026-09-29
Avoids Bad ChasesST 58.2% · rebadged research
15
Avoids Bad TakesHPT 30.4% · rebadged research
11
Correct Decisions61.5% · rebadged research
12
Resists Breaking - horizontalwOBA 0.299 · borderline
29
Resists Breaking - verticalwOBA 0.276 · insufficient sample
65
Resists ChangeupwOBA 0.269 · validated thin sample
81
Resists Cutters + splitterswOBA 0.325 · insufficient sample
53
Resists FastballwOBA 0.314 · validated
88
Resists SinkerwOBA 0.331 · validated
91
SEAGER+ Plate Discipline88
9
Rolling form chart

xwOBA allowed snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

0 snapshots
No chart yet

No Live State xwOBA snapshots are available for this player.

Spray profile

Field-coordinate spray profile

28 Statcast batted-ball coordinates from the pitch-event feed (2026). Direction profile remains as the v1 context layer when coordinate density is limited.

All BIP Singles Doubles Triples HR vs LHP vs RHP Home / Away
Mithrandir Metrics SPRAY CHART Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Spray Chart Prieto, César · Statcast batted-ball landing coordinates Left field third: 11% of plotted batted ballsPull 11%Center field third: 79% of plotted batted ballsCenter 79%Right field third: 11% of plotted batted ballsOppo 11% LF 336 CF 400 RF 335 2026-05-06 · grounded into double play · SI · ground_ball · EV 65.1 / LA -28.02026-05-08 · field out · CH · ground_ball · EV 101.4 / LA -4.02026-05-08 · field out · SI · popup · EV 60.7 / LA 75.02026-05-08 · field out · SI · ground_ball · EV 101.5 / LA -22.02026-05-17 · field out · SL · line_drive · EV 108.9 / LA 14.02026-05-19 · field out · FF · ground_ball · EV 99.3 / LA 1.02026-05-19 · field out · CH · ground_ball · EV 91.4 / LA -30.02026-05-20 · field out · FF · fly_ball · EV 98.2 / LA 38.02026-05-20 · field out · FF · fly_ball · EV 102.6 / LA 26.02026-05-20 · field out · CU · line_drive · EV 93.3 / LA 20.02026-05-20 · field out · FF · ground_ball · EV 77.9 / LA -32.02026-05-23 · field out · FF · fly_ball · EV 84.4 / LA 47.02026-05-23 · field out · SI · ground_ball2026-05-23 · field out · CH · fly_ball · EV 93.0 / LA 48.02026-05-23 · field out · FC · ground_ball · EV 98.9 / LA -6.02026-08-05 · field out · FF · ground_ball · EV 94.5 / LA 9.02026-08-05 · field out · SI · line_drive · EV 92.7 / LA 18.02026-08-07 · field out · FF · ground_ball · EV 86.7 / LA -26.02026-08-07 · field error · FF · ground_ball · EV 47.8 / LA -55.02026-08-14 · field out · FF · fly_ball · EV 94.2 / LA 45.02026-08-14 · force out · SI · ground_ball · EV 79.1 / LA -29.02026-08-14 · field out · SI · ground_ball · EV 96.8 / LA 1.02026-09-05 · field out · FF · ground_ball · EV 69.1 / LA 3.02026-09-18 · field out · FF · ground_ball · EV 102.4 / LA 2.02026-09-18 · grounded into double play · SI · ground_ball · EV 94.1 / LA -20.02026-09-27 · field out · CU · ground_ball · EV 83.7 / LA -30.02026-09-27 · triple · SV · fly_ball · EV 96.3 / LA 27.02026-09-27 · field out · FF · fly_ball · EV 97.4 / LA 28.0 1B2B3BHROut Zone shading = batted-ball density by field third · hover dots for date, pitch, EV, and LA. MITHRANDIR · CHARTS
Bat tracking

Swing path, attack angle, bat speed

No bat-tracking aggregate is available for this hitter. The full swing, with the recommended path overlaid, lives in the 3D Swing Simulator.

Watch the swing in 3D →

No bat tracking

No Savant bat-tracking aggregate is available for this hitter.

Zone profile

Aggregate zone heatmap

Aggregate zone metrics from seasonal Statcast leaderboards.

Mithrandir Metrics ZONE HEATMAP Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Swing Zone Profile Prieto, César · Aggregate zone metrics; not pitch-by-pitch locations Zone: 46%46%Chase: 38%38%Whiff: 22%22%Zone contact: 94%94%Contact: 78%78%Hard hit: 34%34% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Model read

Projection notes

1
templated note
Home park trims some of the raw HR output despite the underlying power.
hitter
Live context

Current-season signal

No Live State delta is available for this player yet.

Projection table

Point projection and range

MetricPointRangeHalf-width
Plate Appearances208----
Home Runs6----
Stolen Bases0----
xwOBA0.2410.075 to 0.273+/- 0.099
ISO0.1090.014 to 0.214+/- 0.100
Barrel%2.1%0.2% to 4.6%+/- 2.2%
Hard-Hit%28.6%7.2% to 39.6%+/- 16.2%
K%22.8%9.1% to 30.7%+/- 10.8%
BB%6.1%0.6% to 9.2%+/- 4.3%
BABIP0.2900.140 to 0.368+/- 0.114
Platoon / Shape
vs LHP

10 career PA

xwOBA0.001
K%3.0%
BB%0.4%
Barrel0.0%
vs RHP

20 career PA

xwOBA0.001
K%2.8%
BB%0.4%
Barrel0.0%