Houston traded for Marvin Harrison Jr., and the deal moved the Texans' season by a tenth of a win and their playoff odds by a single point. The Season Engine has the Super Bowl number unchanged and the division up half a point. For a 1-4 team that just bought a former top-5 pick at the deadline, that is the whole return.
What The Trade Actually Moved
I set the engine's storyline to the Texans acquiring Harrison and left everything else alone. This is the full before and after.
| Texans | Before the trade | With Harrison | Kalshi |
|---|---|---|---|
| Average wins | 8.2 | 8.3 | market 8.2 |
| Make the playoffs | 34% | 34% | 36¢ |
| Win the AFC South | 13% | 13% | 16¢ |
| Winning record (9 or more) | 47% | 48% | n/a |
| Win the Super Bowl | 1.9% | 1.9% | 2¢ |
Three of those rows show the same figure on both sides. That is rounding rather than a typo: the underlying moves are one point on the playoff line and half a point in the division, and the display rounds both away. Kalshi prices are quoted in cents, which read as percentages.
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Why A Star Receiver Moves So Little
Three things are doing the work, and none of them is a judgement about Harrison.
The first is arithmetic. Five games are gone and four of them were losses. Twelve remain, and one player distributed across 12 games is a fraction of a win even when he is very good. The engine is fit to the Kalshi win total, which sits at 8.2 for Houston, and a tenth of a win does not change what that market thinks the season is.
The second is the standings. Houston is 1-4 with a division winning chance of 13%, and you cannot add much to a number that small by improving the roster at one position.
The third is the part people will argue with. Houston's four losses came by 5, 14, 2 and 4 points. Three of the four were one-score games, which is exactly where a playmaker is supposed to matter most. The engine still prices the acquisition at a tenth of a win, because close losses are mostly variance and the win total market has already seen all five results.
Jacksonville Already Took The Division
The other reason the trade barely registers is sitting at the top of the AFC South.
| AFC South | Record | Engine playoffs | Kalshi | Engine division | Kalshi |
|---|---|---|---|---|---|
| Jacksonville Jaguars | 4-1 | 87% | 81 to 86¢ | 76% | 73¢ |
| Houston Texans | 1-4 | 34% | 36¢ | 13% | 16¢ |
| Indianapolis Colts | 2-3 | 27% | 31 to 33¢ | 10% | 7¢ |
| Tennessee Titans | 0-5 | 0.4% | 1 to 3¢ | 0.2% | 1¢ |
Jacksonville at 11.7 projected wins and 76% in the division has effectively closed it, and the engine tags them a Super Bowl contender. Houston's remaining path is a wild card, which is why the playoff line moved by a point while the division line moved by half of one.
The two teams meet on October 18 in Jacksonville, where the engine gives Houston 44%. That game will move the Texans' board more than the trade did.
How The Engine Isolates One Move
Houston won on Sunday, beating Tennessee 26-3, and then announced the trade at the post-game press conference.
The engine separates them because a storyline changes one input and holds the rest. Typing "Texans get Marvin Harrison Jr." into the ask box prices the trade alone, against a board that already contains the Tennessee result. The answer comes back at one point.
Run Your Own Storyline
Open the Texans' page, clear the storyline, and add it back to watch the rows move. Then try the opposite case: set the Jacksonville game as a Houston win and compare that against what the trade bought.
Every team has a page, and the full week-by-week board is on the NFL win projections page.
About The Numbers
The Season Engine is fit to Kalshi win totals, so its baseline is calibrated to market prices rather than set independently, and Kalshi prices appear beside each projection. The before-and-after column is the engine's own storyline output for the Texans acquiring Harrison, with every other input left untouched, so nothing else in the model changed. Division percentages are rounded, and playoff percentages across one division can exceed 100 because more than one team can qualify. Game win probabilities are the engine's own. Trade details and timing are from the news feed carried on the Texans' Season Engine page, which reported the deal completed early on Monday, October 12, 2026. All figures are as of that morning, and both the engine and the market move.
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