Who is favored, Ryan Garcia or Conor Benn? Garcia, and by a wide margin. On the morning of the weigh-in, Friday, September 11, 2026, Kalshi prices Ryan Garcia at 69 to 70 cents to beat Conor Benn and Benn between 30 and 32, with the 31-cent level flipping between a thin bid and a thin offer through the morning. Both are within a cent or two of where this page found them on August 13, about 70 and about 30. What changed is everything underneath the price: about 1.25 million contracts have now traded across the two winner legs, a 73,700-contract bid sits under Benn at 30 cents, and on Thursday afternoon Kalshi opened a method-of-victory board that prices how the fight ends. Our five-seat price-blind AI panel, run August 13 and frozen since, blends Garcia to 64%, under Kalshi and well under the sportsbooks.
Garcia defends his WBC welterweight title against Benn on Saturday, September 12 at T-Mobile Arena in Las Vegas, headlining Mexican Independence Day weekend, with the main card starting at 8 p.m. ET on Paramount+. It is his first defense and Benn's first world-title fight. The panel scored the bout from a dated dossier of records, recent form, weight histories and settlement rules, with every price stripped out. The result is still the most Benn-friendly number on any board: the models give the challenger a better chance than either the exchange or the books. The rest of this page walks the winner market's order book, then the new method board, then the weigh-in that every seat named as the last real signal.
The Market At A Glance
| Venue | Kalshi |
| The Event | "Ryan Garcia vs Conor Benn Winner?" (KXBOXING-26SEP12GARCIABENN), two winner contracts, about 1.25 million contracts traded through Friday morning |
| The Contract | The Garcia contract resolves Yes if Ryan Garcia wins; the Benn contract resolves Yes if Conor Benn wins. A draw resolves both to No. |
| Settles | The night of September 12, 2026, usually shortly after the official result; Kalshi's expected expiration is early Sunday morning ET. A postponement keeps the market open until the rescheduled bout, within about two weeks. |
| Prices Below As Of | September 11, 2026 (Kalshi order book and trade tape, fetched 9:30 AM ET). Panel numbers are from the August 13 run and have not been re-run. |
What Moved Since August 13: 73,700 Contracts Want Benn At 30 Cents
The price has done almost nothing for a month, a tick at most. Benn's contract closed between 29 and 32 cents every session from August 13 through Thursday, with a single 29-cent close in the session ending August 15 and nothing outside 30 to 32 in fight week, and Garcia sat at 69 or 70 the whole way. The order book did the moving instead.
| Ryan Garcia leg | Conor Benn leg | |
|---|---|---|
| Bid / ask | 69¢ / 70¢ | 30¢ to 31¢ / 31¢ to 32¢ (the 31¢ level flips between a thin bid and a thin offer) |
| Resting bids, top two levels | about 26,500 at 69¢, about 75,500 at 68¢ | about 73,700 at 30¢, about 5,100 at 29¢ |
| Resting offer at the ask | about 720,600 at 70¢ | about 579,900 at 32¢ |
| Contracts traded, last 24 hours | about 68,400 | about 161,800 |
| Contracts traded, lifetime | about 522,000 | about 724,500 |
| Open interest | about 271,600 | about 555,300 |
The row I keep coming back to is the Benn bid. A few dozen contracts sit at 31 cents when anyone bids there at all, and then 73,700 sit one tick lower at 30. That is not a quote. Somebody built a floor. Open interest on the Benn leg closed the session ending August 13 at roughly 114,000 and Thursday's session at about 516,000, roughly four and a half times as much, with the live count at 555,300 by Friday morning. The Benn leg has out-traded the Garcia leg roughly 162,000 to 68,000 over the last 24 hours. Fight-week contracts on Kalshi are flowing to the underdog leg, the same pattern the Romero vs Lopez board showed in August, when 52,533 of the first day's 76,058 contracts landed on the underdog.
The price history says who was doing the buying. From Thursday morning through 9:30 AM ET Friday, 913 trades printed on the Benn leg: about 130,400 contracts were bought by takers lifting the Yes side, against about 38,600 bought on the No side. That is more than three Benn buyers for every Benn seller, and the price still did not clear 32 cents. The reason is the other wall. Above the 30-cent floor, the offer at 32 cents shows roughly 579,900 contracts, so a Benn buyer occasionally gets filled at 31 when a stray offer appears, then runs into a seller willing to write more contracts than the leg's entire open interest. Benn is boxed into a two-cent range: 30 under him, 32 over him. A re-check at 9:50 AM ET showed the same box with the roles swapped in the middle: the 30-cent bid had grown to about 74,300 contracts, a 528-contract offer sat at 31, and the roughly 580,000 at 32 had not moved.
The busiest hour was 8 p.m. ET Thursday, when about 32,700 contracts changed hands on the Benn leg. Two of them were the day's biggest prints, 10,000 contracts each, sold into the 31-cent bid at 8:08 p.m. ET. Earlier, at 4:13 p.m. ET, two prints bought about 14,700 contracts of Benn at 32. The buyers and the sellers were both large, and neither moved the number. To be fair to the favorite, aggressive buying skews to Yes on both legs: the Garcia tape ran about 60,000 contracts bought against 13,000 sold over the same window, a steeper ratio than Benn's. What is lopsided is the contract count, roughly 162,000 Benn to 68,000 Garcia over 24 hours. In dollars the two sides are close to even, since 130,000 Benn contracts bought near 31 cents and 60,000 Garcia contracts bought near 70 each work out to roughly $41,000 of notional. Kalshi's crowd is not richer on Benn; it is more numerous. The Garcia leg's book is the mirror image: 26,500 bid at 69, 75,500 more at 68, and about 720,600 offered at 70. As of Friday morning the two asks sum to 102 cents, so the exchange's two-cent overround is the price of immediacy.
One honest caveat. A resting order is a price someone is willing to pay right now, not a forecast, and large resting orders get pulled. The 30-cent bid can vanish before the first bell. What it tells you today is that the panel's 36% for Benn sits above the entire range the market has traded in for a month, and that the market has had more than a million contracts' worth of chances to disagree.
How It Ends: The Method Of Victory Board
Kalshi listed "Ryan Garcia vs Conor Benn: Method of Victory" (KXBOXINGMOV-26SEP12GARCIABENN) at 4:58 p.m. ET Thursday. It has five legs, exactly one of which pays, and about 49,200 contracts traded in its first 16 hours. This is the how-it-ends read the winner line cannot express, and for a fight where the favorite's two losses were a body-shot stoppage and a 12-round decision, method is the whole argument.
| Outcome | Bid | Ask | Last trade | Contracts traded |
|---|---|---|---|---|
| Ryan Garcia by KO/TKO/DQ | 23¢ | 45¢ | 47¢ | about 7,700 |
| Ryan Garcia by decision | 19¢ | 23¢ | 22¢ | about 9,900 |
| Conor Benn by decision | 14¢ | 15¢ | 15¢ | about 14,200 |
| Conor Benn by KO/TKO/DQ | 12¢ | 16¢ | 17¢ | about 8,500 |
| Draw or no contest | 5¢ | 6¢ | 7¢ | about 8,900 |
Benn by decision is the leg that has a real market. Busiest of the five and tied with the draw leg for the tightest spread at 14 bid and 15 ask, and about 55,700 contracts are offered at 15, the kind of size that usually means a maker rather than a punter, and it is there until it isn't. Benn by stoppage is thin, six contracts bid at 12 and 35 offered at 16. Add Benn's two legs together and you get 26 bid to 31 ask. The combined ask sits a cent under the winner contract's 32, while the combined bid runs several cents under the winner leg's 30-to-31 bid, so the method board is thinner on the buy side than the winner leg, as a day-old board should be. The market is splitting Benn's path almost evenly between the cards and a finish, which is a generous read of a fighter with 14 knockouts in 25 wins whose case against Garcia is volume and pace, not one-punch power. For anyone who buys the panel's Benn argument, that he walks Garcia down and turns the second half into attrition, the decision leg at 15 is the cleaner expression of it than the winner contract at 32.
Garcia's side is where Kalshi has not made up its mind. Garcia by decision trades 19 to 23 with real depth above 23, about 64,000 contracts offered at 24. Garcia by stoppage is a 22-cent spread, 23 bid against 45 asked, with only 29 contracts at 45 and then about 1,700 at 46 and 1,600 at 47. Add Garcia's two legs and you get 42 bid to 68 ask against a 69/70 winner contract, so the sum of the parts has not converged on the whole yet. The sportsbooks have a firmer opinion: per Boxing Daily's September 9 breakdown, a Garcia stoppage is priced around -110 and a Garcia decision around +250, which puts more respect on the knockout than the points win even though Garcia won the belt from Barrios on the cards. On its own, -110 implies roughly 52% before the vig is removed, but the two Garcia method prices sum to about 81% against a Garcia moneyline of 73% to 78%, so scaled down to the books' own winner price a Garcia stoppage lands closer to 48 or 49 cents. Kalshi's 46-to-47-cent offer is a two-cent lean under that, not a real disagreement. The real disagreement stays where it was in August, on the winner line, where the books have Garcia several points richer than the exchange's 70.
The draw leg deserves a sentence because of a rule on the other board. On the winner market, a draw resolves both contracts to No, so a Yes holder on either fighter loses on a drawn decision while a No holder on either leg gets paid. That means the draw is already priced twice on Kalshi: the two No sides of the winner board cost about 98 cents together and would return $2 on a draw, before fees, against $1 on any decision. The method board's "Draw or no contest" leg at 5 to 6 cents is the only contract that pays only on a draw, the clean expression of the same outcome, and it also covers a no contest, an outcome Garcia's own record includes after the Haney result was overturned. Kalshi also listed a Round of Finish board (fight ends before round 3, 5, 8 or 11) at 8:14 p.m. ET Thursday, but as of Friday morning it has a few cents bid on one rung, nothing on the others and only placeholder 99-cent offers, so there is no price there to read yet.
What Does The Panel Say?
The panel blends Ryan Garcia to 64% and Conor Benn to 36%. Every live seat landed within a point or two of that after the revision round, and all of them sit below Kalshi's 70-cent price. The sportsbooks were harder on Benn still: Garcia opened as a huge favorite at the books, and the vig-stripped consensus from August is in the table below. By fight week the books had eased to Garcia between -265 and -350 and Benn between +200 and +250, per Boxing Daily on September 9, closing part of the gap the panel flagged without closing it.
| Model | Garcia wins | Benn wins |
|---|---|---|
| Claude Opus | 64% | 36% |
| Claude Sonnet | 63% | 37% |
| GLM | 65% | 35% |
| Kimi | 63% | 37% |
| DeepSeek | 65% | 35% |
| Panel Blend | 64% | 36% |
| Kalshi Market (Aug 13) | ~70¢ | ~30¢ |
| Kalshi Market (Sept 11, 9:30 AM ET) | 69¢ / 70¢ | 31¢ / 32¢ |
| Sportsbooks, vig removed (Aug 13) | ~74% to 77% | ~23% to 26% |
Five of the panel's eight seats returned this run; Claude Fable, ChatGPT and Gemini were unavailable and are excluded from the blend. Each seat priced the bout once on August 13, 2026 without seeing a price, then revised once after reading the other seats' anonymized reasoning. The numbers have not been re-run for fight week on purpose: the point of the page is to grade the August read against the result. Every number gets graded in public once the fight settles, on the AI model verdict scoreboard.
Who Is Fighting?
Ryan Garcia (25-2, 20 KOs) won the WBC welterweight belt with a unanimous decision over Mario Barrios in February 2026. He is the naturally full-sized welterweight in this fight, with elite hand speed and a celebrated left hook. His April 2024 win over Devin Haney was later overturned to a no-contest after a positive test for ostarine.
Conor Benn (25-1, 14 KOs) is the son of former champion Nigel Benn and a high-volume pressure fighter with a strong engine and a modest knockout rate. His two fights with Chris Eubank Jr in 2025 came at a catchweight against a naturally bigger man; he lost the first and won the rematch wide, then beat a faded Regis Prograis in April 2026.
Per Sky Sports, Garcia is "a marked step up in the quality of opposition" for Benn. Benn also returned adverse findings for clomifene in 2022, which he attributed to eating eggs, before being cleared.
Each of those biography lines now has a contract attached to it. Garcia's no-contest is why the method board's draw-or-no-contest leg exists as a paid outcome. Benn's 14 knockouts in 25 wins are what the 12-cent bid on Benn-by-stoppage is weighing. And Garcia's points win over Barrios is the fact the books are arguing with when they price his stoppage shorter than his decision.
Why Garcia Is The Favorite
The 70 cents on the winner board rests on the plain stuff. Garcia is the bigger, faster, harder-punching man, defending at his natural weight against a challenger who has never beaten a top welterweight. Claude Opus put the ledger in one line: "Garcia holds size, speed, power, resume and the title; Benn holds activity, engine, momentum." DeepSeek leaned on the base rate: "Base rates favor the naturally bigger, faster, and more powerful champion in title defenses."
Two facts did most of the work. Benn's best recent results came above welterweight, against an out-of-division Eubank Jr and a fading Prograis, never against a welterweight titleholder. And the weight: Benn is making a cut back to 147 that boxing reporting has called "brutal," and he has said this will be his final welterweight fight. Kimi's summary: Garcia is "defending his title at his natural 147," while Benn is "making a 'brutal' cut back to 147 after fighting at 150-160 lbs, with no elite welterweight wins."
This is the case the order book is agreeing with when it shows about 720,600 contracts offered at 70 and roughly 64,000 more offered on Garcia by decision at 24. What the book has not decided is how that case ends, which is why Garcia by stoppage sits 23 bid against 45 asked with almost nothing resting between.
Why The Panel Likes Benn's Price
Garcia's own losses map onto Benn's style. Gervonta Davis stopped him with a body shot in 2023, and Rolando Romero out-worked him over 12 rounds in May 2025 in his welterweight debut. Walk Garcia down, take the early power, and turn the second half into an attrition fight: that is close to a description of what Benn does for a living. Claude Sonnet held the line on it: the physical edges "favor Garcia. But Garcia's two losses came via exactly Benn's toolkit," and Garcia's form is mixed, two wins in his last five.
That is why the panel gives Benn 36% when the books gave him closer to 23% to 26% in August. His durability over hard rounds against a bigger Eubank Jr is part of the same case, and it is the single clearest place this board disagrees with the betting market. The same logic is why the method board's Benn-by-decision leg reads as the panel's argument in contract form: the case for Benn was never a knockout.
Which Seat Changed Its Mind?
GLM opened as the panel's high man on Garcia at 78%, calling the physical mismatch and Benn's weight issues decisive. After reading the other seats it cut its number to 65%, conceding "Benn's pressure style theoretically exploits Garcia's vulnerability to body work and volume (seen in losses to Davis and Romero)." That one revision pulled the blend down and widened the gap with the market.
DeepSeek held at 65% in both rounds, arguing the base rate for a bigger, faster champion already prices a challenger's pressure. Claude Opus nudged the other way, from 62% to 64%, after weighing Garcia's crowd and title-holder edge in Vegas.
The Weigh-In Is Friday Afternoon: What Is Left To Move This
The weigh-in, Friday afternoon in Las Vegas, is the signal every seat named first, and as of this update it had not happened. Benn has spent the week describing the cut. Per Sky Sports on September 10, he said the 15-week diet to reach 147, his first time at the limit since April 2022, left him feeling "dragged through the pits of hell and had a fight with satan", and there is no rehydration clause in the contract. Garcia skipped Tuesday's face-off at Mandalay Bay and told Sky Sports why: "I have a routine to do, and it's just something I didn't want to do."
Garcia also went to the Nevada State Athletic Commission over gloves. Nevada requires 10-ounce gloves for bouts above 148 pounds, and per boxingnews.com on September 11, Garcia asked that the fight stay at 8 ounces even if Benn comes in heavy, and got it. His reasoning, in his words: "It's more deadly with 8-ounce gloves, so that's why I did that." Read that alongside the 73,700-contract bid at 30 cents and you have the fight week in two lines: the champion is planning for a challenger who might miss weight, and a large buyer is planning for one who shows up fine.
If Benn misses 147 or looks drained on the scale, the read moves toward Garcia, and the Garcia-by-stoppage leg is where that would show first. If he makes weight comfortably, it moves back toward Benn, and the 30-cent floor probably gets tested from above rather than below. Kalshi's rules only care whether the bout happens and who wins, so a missed weight that still produces a fight changes the read, not the contract. A pull-out or delay freezes the read, and the market stays open and reprices around the new date.
The Bottom Line
The panel and the market agree on the winner and disagree on the size of it, and a month of trading has not changed either side's mind: Garcia is still 69 or 70 cents, Benn is still 30 to 32, and the models still say 64 and 36. What fight week added is texture. Benn is boxed between a 73,700-contract floor at 30 and a roughly 580,000-contract ceiling at 32, so as of Friday morning a buyer pays 31 or 32 or waits for a seller to come to 30. And the method board finally puts a price on the panel's actual argument: Benn by decision at 15 cents, against a Garcia-by-stoppage leg the exchange has not priced with any conviction yet. This page will be graded against the August numbers once the fight settles. If you want a second opinion beyond the exchange before the main card, our analysts' free expert picks post across the weekend's slates.
If event contracts are new to you, the how sports contracts work on Kalshi guide walks the mechanics and the legality guide covers the regulatory picture.
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