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Home/NFL/Week 15/Colts vs Titans
Gridiron EdgeWeek 15 · 2026AFC South rivalry

Indianapolis Colts vs Tennessee Titans

Sunday, December 20, 2026 · Nissan Stadium, Nashville, TN

Quick Answer

As of August 1, 2026, our model favors the Colts by 1 in Indianapolis Colts vs Tennessee Titans, NFL Week 15 2026 — 52% to win, and effectively a toss-up — the teams are 3.3 rating points apart. Kalshi has not listed KXNFLGAME-26DEC20INDTEN yet, so there is no price to compare: when it opens, Titans at 43c or below (or Colts at 47c or below) is where the model would take a position.

PMP · WK 15 MARKET PENDING
Sun, Dec 20
AWAY IND -0.1
vs IND -1
HOME TEN -3.4
Model · TEN 48% home win prob
Kalshi · TEN yes mid
Edge model − market
📍 Nashville, TN MARKET PENDING

Colts

52%

model win prob

Titans

48%

model win prob

KXNFLGAME-26DEC20INDTENhasn't opened yet, so there is no price to compare. When it does, the model buys the Titans at 43c or below, or the Colts at 47c or below — a five-point threshold either way. The market column fills in automatically.

Power-rating comparison

TeamRatingRankTier
Indianapolis Colts
-0.115thAverage
Tennessee Titans
-3.429thAverage

Colts–Titans is a coin flip on our numbers

There is almost nothing between these two on our numbers. The Titans rate -3.4 (29th of 32), the Colts -0.1 (15th) — 3.3 points apart before home field, inside the error bar of any preseason rating. The split comes out 48%/52%, and this rates as the 3rd-closest game of the 16 in Week 15. When the model has no opinion worth holding, the price has to supply the edge.

Zoom out to the full season and the model projects the Titans at 6.8 wins (favored in 3 of 17) and the Colts at 8.6 (favored in 10) — 1.8 wins apart across the year. By win probability this is the 12th-hardest game on the Titans' schedule and the 10th-hardest on the Colts'.

The sharpest unit gap in the game runs one way: the Colts offense grades +0.9 (14th of 32) against a Titans defense at -1.4 (21st) — 2.4 points of separation on our scale, and the single biggest reason the line sits where it does. Going the other direction, the Titans offense (-2.5, 28th) meets the Colts defense (-1.7, 23rd), a 0.8-point gap.

On the standings side, AFC South games are the ones that decide the tiebreakers. Head-to-head record is the first tiebreaker between two teams in the same division, and division record is the next — so the value of this result is not just the win column. They already played in Week 6, so a season sweep is on the table here on the AFC South race.

One team has owned this series: the Colts are 34-14 in 48 regular-season meetings since 2002. They have also met 1 time in the playoffs. They last met in 2025: Colts won 38-14 in October. Over their last 4 meetings the Titans are 0-4. Worth saying plainly — the model does not know any of that. It reads 2026 ratings and nothing else, so a lopsided series is a story, not a number on this page.

Calibration check, because a near-even number is the easiest kind to overtrust: across 3266 walk-forward games (2013-2024) the model gave a side 50-55% in 870 of them, and those sides won 52%. The Colts at 52% are in that band. A margin that thin is why we would rather wait for a price than call it a lean.

No price exists for this game yet; KXNFLGAME-26DEC20INDTEN is not listed, and a model number is not a market number. Because the model is close to even here — 48% / 52% — the tradable window is narrow: Titans at 43c or below, Colts at 47c or below, and a pass on everything between. On near-coin-flips the opening price usually lands inside that window, which is why most games like this end up as no-position. Week 1's KXNFLGAME contracts opened in May 2026 and the rest of the slate lists as the season gets closer; this page picks up the price automatically when it does.

Full division picture on the AFC South hub.

Prediction markets are not sportsbooks — you trade a contract that settles at $1 or $0, not a wager against a house line. Informational only; trade responsibly.

Colts vs Titans — frequently asked

Who is favored in Colts vs Titans in Week 15?

Our power-rating model favors the Colts by 1 points, a 52% win probability over the Titans. The Titans rate 29th of 32 (-3.4) and the Colts 15th (-0.1); Kalshi has not listed KXNFLGAME-26DEC20INDTEN yet, so the model line is the only number on the board.

Why does the model call this a toss-up?

Because the Titans (-3.4, 29th) and Colts (-0.1, 15th) are only 3.3 rating points apart. The 2.5-point home-field adjustment is larger than the gap between the teams, so home field is effectively the entire margin and the split lands at 48%/52%. In games like this the model is not the deciding input — the contract price is.

How do you take a position on Colts vs Titans?

The contract will be KXNFLGAME-26DEC20INDTEN on Kalshi, a CFTC-regulated exchange open to traders in all 50 states. It has not opened yet; when it does, the model would take the Titans at 43c or below, or the Colts at 47c or below. There is no point spread — you buy a yes or no contract on a team and it settles at $1 or $0.

When and where do the Titans host the Colts?

Indianapolis Colts visit the Tennessee Titans on Sunday, December 20, 2026 — a Sunday game in NFL Week 15, at Nissan Stadium, Nashville, TN.

What does the model project for the Titans and Colts this season?

Across all 17 games the model projects the Titans at 6.8 wins (favored in 3) and the Colts at 8.6 (favored in 10). This game ranks 12th-hardest on the Titans' schedule and 10th-hardest on the Colts', by model win probability.

How often does the model win when it is 52% on a team like the Colts?

52% of the time. Over 3266 walk-forward games from 2013-2024 — trained only on prior seasons, no market line as an input — the model put a team in the 50-55% range 870 times, and those teams won 52% of them. The Colts at 52% over the Titans sit in that band, off a 1-point model line. Straight-up across all 3266 graded games the model picked winners at 59.6%, with a Brier score of 0.236 against 0.25 for a coin flip.

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The first meeting

These two already played once in 2026, back in Week 6. Division games are the pairings the model gets two swings at, and the second line usually moves off what the first one showed. ColtsTitans, Week 6

More Week 15 matchups

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