MLB Picks Today (April 21): Rithmm Models Flag a 74% Pattern on Reynaldo López Tonight

Published on
April 21, 2026
Sean Ramsey
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What the Model Is Seeing Today

One pick. One gold-tier pattern. Here's what Rithmm's models are flagging for tonight's Atlanta Braves at Washington Nationals game at 6:45 PM EDT.

Reynaldo López — OVER 1.5 Walks (-184) | ATL @ WSH | 6:45 PM EDT

This is the strongest pattern match on today's entire slate, and it's backing one pick.

Rithmm's models have been tracking the MLB pitcher walks OVER @ 1.5 pattern across the full 2026 season. The result: a 52-18 record, 74.3% win rate on 70 bets, with a +25.3% ROI. Gold tier.

The tightest version of this pattern — where expected value falls between 1-5% — tightens the record even further: 24-7 (77.4% win rate, +29.1% ROI) on 31 bets. That is not a hot streak. That is a persistent signal the models keep finding in pitcher walk props at this line.

There is a second layer tonight. Today is Tuesday. The same pitcher walks pattern on Tuesdays specifically is 5-1 on the season. Two signals pointing at the same start.

Tonight's Pick: Reynaldo López OVER 1.5 Walks (-184) @ WSH

López takes the mound at Nationals Park for Atlanta. He comes in at 1-0 with a 2.18 ERA and 19 strikeouts on the season — one of the more reliable arms in the Braves rotation right now.

Rithmm's model gives this bet a 66.5% win probability with a DTM of +1.7.

The model is not flagging this because of any weakness in López's individual start. It's flagging it because of what the historical data shows about pitcher walks at this line, in this context, across this type of outing. The pattern does its work regardless of the individual pitcher narrative.

The data: 52-18 all time | 74.3% WR | +25.3% ROI | Gold Tier

Why This Line

The walks OVER @ 1.5 is one of the cleanest pitcher prop lines in baseball. It requires a pitcher to issue just two walks in a start. At 1.5, the margin is tight, and the historical signal Rithmm has found here is among the strongest in its prop pattern library this season.

A 74.3% win rate across 70 bets is real sample size. The -184 juice is heavy, but the pattern win rate accounts for that. At +25.3% ROI over 70 bets, the data is clear on where the value sits.

Find This Pick Inside Rithmm

This pick is live in the app right now. You'll see the model's projection, DTM, and win probability alongside the full pattern record — no black boxes, all the data is there before you decide.

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