MLB/Matchup Lab

MLB Matchup Lab

Platoon splits, handedness advantages & pitching analysis

Platoon Advantage

Batters historically hit better against opposite-hand pitchers

LHB
RHP
+15-25 wOBA pts

Left-handed batters see the ball better against right-handed pitchers. Breaking balls move toward the bat.

Strong Platoon Advantage
RHB
LHP
+10-15 wOBA pts

Right-handed batters hit lefties well. Fewer LHP in MLB means less familiarity for batters, but the platoon edge still holds.

Moderate Platoon Advantage
S/H
ANY
Neutral

Switch hitters bat from both sides, neutralizing any platoon advantage. Focus on pitcher quality and other factors.

Platoon Neutralized

Pitcher Rating Calculator

Enter pitcher stats to generate a quality rating breakdown

Pitcher Stats

Rating Formulas
Stuff = min(5, max(0, (K/9 / 8.8) * 2.5))
Control = min(5, max(0, (3.2 / BB/9) * 2.5))
Prevention = min(5, max(0, (4.15 / FIP) * 2.5))
Overall = Stuff*.3 + Control*.3 + Prevention*.4

Pitcher Rating

Overall Rating
2.50
Average
Right-Handed Pitcher
Stuff (Strikeout Ability)
Average2.50
Control (Walk Avoidance)
Average2.50
Prevention (Run Prevention)
Average2.50
4.0+ Elite
3.0-4.0 Good
2.0-3.0 Avg
<2.0 Poor

Handedness Impact on Betting

When to bet on the lineup with platoon advantage

1

LHP Starting vs RH-Heavy Lineup

Right-handed lineups historically crush left-handed pitching. The opposite-hand advantage compounds across 6-7 right-handed bats in the lineup.

LeanLook for OVER plays. Right-handed lineups mash lefties.
2

RHP with Elite Stuff vs Same-Hand Heavy Lineup

When a dominant right-hander faces a predominantly right-handed lineup, same-hand strikeout rates spike. Breaking balls move away from same-side batters.

LeanLean UNDER. Same-hand K rates spike.
3

Switch-Hitter Heavy Lineup

Lineups with multiple switch hitters neutralize the platoon advantage entirely. The handedness matchup becomes a non-factor.

LeanPlatoon neutral. Focus on pitcher quality instead.
4

Bullpen Handedness Mismatch

Late-game bullpen matchups can swing outcomes. A lefty-heavy bullpen facing right-handed pinch hitters in the 7th-9th creates platoon edges.

LeanLate-game platoon advantages matter in close games.

Key Matchup Stats Reference

League-wide splits (2024 approximations)

Stat
Value
Context
wOBA vs LHP
.325
Batters combined
wOBA vs RHP
.315
Batters combined
K% vs Same-Hand
24.5%
Strikeout rate
K% vs Opp-Hand
20.5%
Strikeout rate
HR Rate vs Same-Hand
2.8%
Home run rate
HR Rate vs Opp-Hand
3.4%
Home run rate
wRC+ vs LHP
105
Weighted runs created
wRC+ vs RHP
98
Weighted runs created

Pitcher Archetypes

Profile-based betting angles and risk factors

K

The Strikeout Artist

K/9 > 10, BB/9 > 3.5

High ceiling, high floor. These power arms dominate when the stuff is working but can implode when they lose command. Walk rates keep pitch counts high.

Lean
Game props on strikeouts, first 5 unders
Risk
When they walk, they get hit hard
C

The Command Pitcher

K/9 < 8, BB/9 < 2.5

Induces weak contact and goes deep in games. Low walk rates keep runners off base. Efficiency is the name of the game with these pitchers.

Lean
Full game unders, low walk totals
Risk
If lineup squares them up, no swing-and-miss fallback
G

The Ground Ball Machine

GB% > 50%

Park dimensions matter less with ground ball pitchers. They keep the ball on the ground and let the defense work. Sinkers and two-seamers are the weapons.

Lean
Under on HR props, under on game total in big parks
Risk
Infield defense quality matters enormously
F

The Fly Ball Pitcher

FB% > 40%

VERY park-dependent. Fly ball pitchers live and die by the ballpark. Coors Field and Great American Ballpark are nightmares; Oracle Park is a haven.

Lean
Over in hitter parks (Coors, Cincy), Under in pitcher parks (Oracle)
Risk
Wind direction is critical

Building Your Edge

A step-by-step process for matchup-based edges

Matchup Edge Checklist

Work through each step before placing a matchup-based wager

1

Check starting pitcher handedness and splits

Look at the starter's platoon splits. How much worse do they perform against opposite-hand batters? Large splits = larger platoon edge.

2

Cross-reference with lineup composition (% RHB vs LHB)

Count the number of right-handed, left-handed, and switch hitters in the projected lineup. A lineup stacked against the pitcher's weakness amplifies the edge.

3

Layer park factors on top

Some parks suppress offense (Oracle, Dodger Stadium) while others inflate it (Coors, Great American). Park factor modifies the platoon edge.

4

Check weather (if open-air park)

Wind direction, temperature, and humidity all affect ball flight. Hot + wind blowing out = more offense. Cold + wind blowing in = more pitching.

5

Compare to market line for edge

After accounting for all factors, compare your projected total or side to the market line. If there is a meaningful gap, you have found an edge.

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