PGA Tour: Breaking Down the Valero Texas Open Winner Market on Kalshi

The field for the Valero Texas Open in San Antonio is loaded with talent this year, more than in years past. Eight of the players currently ranked in the top 20 of the world rankings are teeing it up this week at TPC San Antonio's Oak Course. With only a week to go before the Masters this week's tournament is acting as a tune up for some of the world's best players, and as a last chance for fringe players to punch their Masters ticket. The Kalshi market reflects one of the most compressed fields of the season, with no single person running away with a commanding probability to take home this week's hardware.
According to Kalshi’s market, Ludvig Aberg and Tommy Fleetwood enter the week as co-favorites at 6% each, with Jordan Spieth, Russell Henley and Robert MacIntyre following behind at 5% apiece. It’s not too often we see a market with this much equality across the board, it just shows how this tournament means so much to many of those participating and we can expect that extra motivation to drive some names we aren’t used to seeing at the top.
2026 Valero Texas Open Winner Probabilities According to Kalshi

Aberg and Fleetwood: The Case For the Leaders
Aberg comes into this week's tournament the number 18 ranked golfer in the world, and this course fits his play style extremely well. Aberg is a great iron player, and the Oaks course rewards players with that profile. It is a Greg Norman designed course that plays as a par 72 at 7,438 yards, but plays harder than the scorecard might suggest. Aberg has a pair of missed cuts at this tournament to go along with a T-14 finish in his 3 appearances. The market clearly isn’t worried about his past at this course, but rather his current form coming into the tournament. He is coming off back to back top 5 finishes at the Players Championship and the Arnold Palmer Invitational. The market is looking at his talent, and talent alone, in which case he does belong right near the top.
Fleetwood might be making an even stronger statistical case currently. He is the highest ranked player in the field this week, coming in at number 4 in the OWGR. His iron play is as consistent as anyone on tour, and currently leads the Tour in strokes gained around-the-green. He has been in great form this year, with 3 of his 4 starts ending in a top 10 finish. He looks like he could be a genuine threat to go low this week and steal a win heading into the Masters to give himself some great momentum.
Spieth’s Case at 5%: History Repeats

Spieth has had some really good weeks playing the Valero, including his first place finish back in 2021. The Texas native has spoken out about how much he enjoys playing in his home state, and he knows TPC San Antonio specifically very well. That familiarity is a big advantage on the field, especially on a course that plays deceptively harder than many think. Spieth will take this week on a course he knows to tune his game for the Masters, he has been very clear on his desire to take home a green jacket and that motivation should drive him this week. Look for Spieth to find his way around the course this week, and bring some solid numbers into the clubhouse. At 5% on Kalshi, the market is acknowledging his ability and current form while not fully committing.
Henley’s Case at 5%: The Iron Man Equation
Russell Henley has quietly become one of the more consistent players on Tour these last few years. He comes into this tournament as the number 10 ranked golfer per OWGR, and has been putting up good scores across major tournaments. This shows that he is able to navigate tough tracks and put himself into contention. He is not without his faults like everyone else, but he manages to keep himself out of trouble very well. This course historically rewarded players who fit that same mold. It’s not the flashiest name among the bunch, but at 5% the market is valuing him as someone whose steady game could outlast the rest of the field for 72 holes in rough Texas conditions.
Robert MacIntyre’s Case at 5%: The Wild Card

Robert MacIntyre is one of the more interesting names in this cluster of players at the top. He is coming off a 4th place finish at the Players Championship and is currently ranked number 11 in the world.The Scotsman grew up playing links style golf, which teaches you to handle intimidating tee shots, strong shifting winds and courses that punish inaccuracy. TPC San Antonio is known for having all those qualities, which makes his experience in similar situations incredibly important. Another interesting pattern that has emerged, the last two winners at the Valero Texas Open have been lefties like MacIntyre. The course plays well for lefty ball strikers, with Akshay Bhatia and Brian Harman both taking advantage most recently, could we see a third lefty in a row take the trophy home?
Other Names to Watch
Hideki Matsuyama (World #14): 4% Win Probability
Sepp Straka (World #12): 4% Win Probability
Si Woo Kim (World #30): 5% Win Probability
Michael Thorbjornsen (World #54): 3% Win Probability
Brian Harman (World #50): 2% Win Probability
The Market Lean
With the probabilities being compressed like this, the market is essentially telling us that it is anyone's tournament to take. Even the long shots are only a few percentage points off, which means we should be in for a competitive tournament. We have several top players in the field for this week, and they are all motivated by the shadow of the upcoming Masters tournament. If you're looking for a differentiator, Fleetwood is in great form right now, and this course suits his play style very well. The number 4 player in the world will look to expand on his already impressive season and gain momentum this week. But don't count out the other names on this list, Spieth and MacIntyre both offer intriguing upside at 5%, especially if the windy Texas conditions we are used to seeing show up again this week.
The market has spoken, and this week in San Antonio, it's saying anyone's game.
Accuracy note: Market data referenced in this article reflects information as of Wednesday, April 1, 2026. Prediction market prices are live and shift continuously. Always verify current information directly at Kalshi.com and Polymarket.com before trading.
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