Research Board | No Play | September 10, 2026

Ryan Feltner Under 4.5 Strikeouts: Sixteen Of Twenty One, Into The Third Highest Strikeout Lineup In Baseball

One line, measured the only way this desk measures anything: the share of this exact pitcher’s own 2026 starts that already landed on the right side of this exact number, printed next to the break even his price demands. Feltner has stayed under 4.5 in 16 of 21 starts, which is 76.19 percent against a price that needs 55.56. That is a gap of 20.63 points and the widest row on tonight’s board. The reason this page exists is who is standing in the box.

By MLB Props Research Desk | Market: September 10, 2026 pitcher strikeout props, read from a live sportsbook at 21:10 UTC | Source: MLB Stats API game logs through September 10, 2026

This page is analysis. It carries no pick and no unit.

MLBPROPS.COM RESEARCH DESK Ryan Feltner, Under 4.5 Strikeouts Landed under in his own 2026 starts 16 of 21 • 76.19% Break even the price demands -125 • 55.56% Gap +20.63 points The lineup in front of him strikes out 24.73% of the time.
Every 2026 start Ryan Feltner has made, measured against the number posted on him tonight. No projection is used anywhere on this page.
Starts measured
21
Landed under 4.5
16
Own hit rate
76.19%
Break even at -125
55.56%
Gap
+20.63
Mean strikeouts
3.57

The Method, Restated

A strikeout prop carries two numbers and most analysis only argues about one of them. The line is the first. The price is the second, and the price is what decides whether a good opinion is a good bet.

The posted number tonight is 4.5 strikeouts, under at -125. A price of -125 needs to be right 55.56 percent of the time to break even. So the question is whether Ryan Feltner has stayed under 4.5 strikeouts more than 55.56 percent of the time. Not whether he should. Whether he has.

He has, by 20.63 points, which is the widest row on the board tonight. That is the headline and the rest of this page is the reason a twenty point gap can still be the wrong side.

No projection appears anywhere on this page. The chart below is his 2026 game log, every start, unfiltered.

Every 2026 Start

DateOpponentIPOutsKResult vs 4.5
2026-03-31Toronto Blue Jays3.094under
2026-04-06Houston Astros5.1161under
2026-04-11San Diego Padres4.0124under
2026-04-18Los Angeles Dodgers5.2175OVER
2026-04-23San Diego Padres2.063under
2026-05-30San Francisco Giants6.0182under
2026-06-05Milwaukee Brewers6.0184under
2026-06-11Chicago Cubs4.1133under
2026-06-16Chicago Cubs4.2147OVER
2026-06-22Boston Red Sox6.0182under
2026-06-28Minnesota Twins6.0180under
2026-07-03San Francisco Giants6.0189OVER
2026-07-09San Francisco Giants4.1133under
2026-07-19Cincinnati Reds2.173under
2026-07-25Milwaukee Brewers5.0154under
2026-08-01Kansas City Royals6.0183under
2026-08-07St. Louis Cardinals5.1162under
2026-08-12Arizona Diamondbacks5.0152under
2026-08-18Los Angeles Dodgers5.0153under
2026-08-24Washington Nationals5.2176OVER
2026-09-04St. Louis Cardinals5.0155OVER

Sixteen greens and five reds. 76.19 percent against a break even of 55.56. The season line behind it is 21 starts, 106.2 innings, a 5.91 ERA, a 1.58 WHIP, 81 strikeouts against 48 walks and opponents hitting .284.

The Distribution Is The Story

Hit rate alone hides the shape, and here the shape is what makes the number look safe.

0 K1 start
1 K1 start
2 K4 starts
3 K6 starts
4 K4 starts
5 K2 starts
6 K1 start
7 K1 start
9 K1 start

Read that chart. Three strikeouts is the mode, six starts, and the whole distribution is bunched below the line rather than sitting on it. Sixteen of the twenty one starts finished at 4 or fewer, and twelve of them finished at 3 or fewer.

That is the opposite of a fragile under. A pitcher whose season piles up at 2 and 3 does not need anything to go right for a 4.5 to stay under. He needs one thing to go wrong for it not to.

His mean is 3.57 strikeouts, nearly a full strikeout below the posted line, on an average of 4.89 innings a start. At his rate that is a pitcher who would need an extra inning and an extra swing and miss to get there.

The Five Reds Are Where The Bet Lives

Five starts went over, and they are not randomly distributed. They came on April 18 against the Dodgers with 5, June 16 at the Cubs with 7, July 3 against the Giants with 9, August 24 at Washington with 6 and September 4 against St. Louis with 5.

Two of the last three starts are on that list. That is the single most important sentence on this page, and it is the reason the market has this at -125 rather than -170. The season rate says 76 percent. The most recent evidence says something looser.

Home And Away

At home he has stayed under in 9 of 12 starts, 75.00 percent, and on the road it is 7 of 9, 77.78 percent. Tonight is a road start.

The run prevention splits the other way from what you would expect from a Colorado arm. A 6.34 ERA at home against 5.36 on the road, but a 1.72 WHIP on the road against 1.46 at home, and a road opponent average of .300.

More traffic and fewer strikeouts is a coherent combination, and it is the one his road line describes: hitters are putting the ball in play against him away from altitude.

The Lineup Is The Whole Counterargument

Here is the number that should stop anybody from treating this as free money.

The New York Yankees strike out in 24.73 percent of their plate appearances, the third highest rate in baseball, against a league figure of 22.10 percent.

That is a 2.63 point headwind on every plate appearance he faces. Across the roughly twenty batters a five inning start produces, that difference is worth about half a strikeout on its own, and half a strikeout is a large fraction of the distance between his 3.57 mean and the 4.5 line.

It also changes the shape of the tail. His overs came against the Dodgers, the Cubs, the Giants, the Nationals and the Cardinals. The most strikeout prone lineup he has faced all season is not as strikeout prone as the one he faces tonight.

He Has Never Faced This Team

There is no head to head in the log. Colorado and New York have not met with Feltner starting in 2026, so every read on this matchup is a read on team rates rather than on anything that has actually happened between them.

That is worth saying plainly, because a page like this one is at its weakest when the only evidence is a league table.

What Would Make This Wrong

The lineup. A 24.73 percent strikeout rate is the third highest in the sport, and it is being handed to a pitcher whose margin under the line is less than one strikeout.

The recent form. Two of his last three starts cleared 4.5. A season rate of 76.19 percent built on a first half that looks different from the second half is a weaker number than it appears.

The innings could get shorter, which helps. This one cuts the other way and belongs here for balance. Colorado is 55-90 and has no reason to extend a starter with a 5.91 ERA, and a four inning outing makes this line nearly unreachable.

Bottom line for the desk: this is the widest gap on tonight’s board and it is wide for a visible reason. The pitcher’s own season says 76.19 percent against a 55.56 percent bar, his mean sits almost a full strikeout under the line, and twelve of twenty one starts finished at three or fewer. Against that, two of his last three went over and he is walking into the third highest strikeout lineup in baseball with a road WHIP of 1.72. Two honest readings of the same twenty one starts, which is why this page carries no play.