MatchWiz

Leo Rivas

Leo Rivas — today's matchup, what the model projects, and how our calls on him have graded. Top board: total bases at 33.7/100.

Today's top board
33.7
Total Bases · vs CHC
Season line · ERA
63.00
0-0 · 0 K, 10.00 WHIP
Games graded
43
this season, box-score final
Leo Rivas
3BBats SThrows RSeattle Mariners
Total Bases33.7/100proj 1.4#69Runs21.7/100proj 0.4#83Walks20.6/100proj 0.3#87Stolen Bases18.4/100proj 0.1#46Fantasy Points16.5/100proj 5.6#83Doubles12.7/100proj 0.1#85Singles8.7/100proj 0.5#88Hits5/100proj 0.8#90H+R+RBI4.3/100proj 1.4#90Triples3.7/100proj 0#78RBIs3.4/100proj 0.4#89Home Runs2/100proj 0.1#87

Today's matchup

Today it's Chicago Cubs for Leo, at home. He shows up on 12 boards — total bases (33.7/100, #69), runs (21.7/100, #83), walks (20.6/100, #87), stolen bases (18.4/100, #46). We've got him at 1.4 on the total bases board. The model doesn't love the spot — the numbers are below. Open any board row for the full breakdown of what's driving it.

Season line

0 starts, 0-0, 63.00 ERA, 10.00 WHIP, 1.0 innings. He's struck out 0 over that span, against 1 walk. This is the baseline the matchup adjusts from — the model starts here and then asks what the specific lineup he's facing does to strikeout arms, how the park plays, and how deep he's likely to go.

He throws right-handed

Leo throws right-handed, which is the ordinary case and means fewer wild swings in the lineup he faces. Opposing managers aren't restacking against him the way they would a left-hander, so his projection moves more on the quality of the lineup than on its handedness. What does move it: how deep he's been going lately, and whether the lineup in front of him strikes out.

Where he lands across our boards

Leo was scored on 12 boards in that matchup, and the spread is the interesting part: total bases graded 33.7/100 while home runs came in at 2/100. Same player, same game, same opposing arm — different questions. A spread that wide usually means the matchup favours one kind of outcome over another, and it's the clearest argument for reading the board that matches what you actually care about.

How the model reads him

The number on Leo is about tonight, not about him. Strip out the name and the model is asking one question: what does this specific lineup do to this kind of arm, in this park, for as many batters as he's likely to face? That gets scored against every other starter on the slate. The combination math is proprietary and re-tuned every week. The grading isn't — it's all public, including the misses.

What we'd flag

Books don't price every player — coverage tops out around 87% even for confirmed starters, so "no line" here usually means no book posted one rather than a gap in our data. Lineups change late, and an afternoon projection can be stale by first pitch. And the model is tuned across hundreds of graded outcomes, so one game tells you nothing about whether it's working.

Recent game log

DateOppIPKHERBB
Saturday, August 22vs CHC
Thursday, August 20@
Tuesday, August 18@ MIL1.00971
Thursday, August 13@ NYY
Wednesday, August 12@
Thursday, August 6vs DET
Sunday, August 2vs MIN
Saturday, August 1@
Sunday, May 17vs SD
Sunday, May 10@ CWS
Saturday, May 9@ CWS
Friday, May 8@ CWS

Leo Rivas — FAQ

Who is Leo Rivas facing today?

Leo Rivas is hosting Chicago Cubs on Sunday, August 23, 2026. His strongest matchup grades 33.7/100 on our total bases board, ranked #69.

What is Leo Rivas's projection today?

We project Leo for 1.4 on the total bases board. That's the model's number for this specific matchup — the opposing arm, the park, the weather, and his expected playing time all feed it. It's graded against the real box score tonight.

Which MatchWiz boards does Leo Rivas appear on?

Leo was scored on 12 boards in his last matchup — total bases, runs, walks, stolen bases, fantasy points. Each one asks a different question about the same game, so his score can be strong on one and weak on another.

Are Leo Rivas's projections betting advice?

No. Every number on this page is a research signal from a statistical model, published alongside its graded record so you can judge it yourself. The model is re-tuned weekly and can be wrong on any given day. Nothing here is a guaranteed outcome. 21+, please play responsibly (1-800-GAMBLER).

Projections are a research signal from our model, graded against real box-score results — not betting advice. 21+, please play responsibly (1-800-GAMBLER).