Market Replay: The opening goal repriced the World Cup +14.5 points in 60 seconds

The market called this one and never wavered. Mexico opened our tournament tracking at 68.6% (the recorded open, June 10, 21:00 UTC), absorbed a doubling of matched volume overnight without moving a point, kicked off at 68.7% — and won. The first entry in the World Cup market scoreboard is a clean hit: favorites 1–0 (and 2–0 counting the early Korea Republic result — more on that below).

The first World Cup match ever captured by Tater's 1-second pipeline — every repricing of the blended Polymarket + Kalshi consensus, tick by tick. Three phases tell the story:

Phase 1 · The cagey open (19:00–19:14)

For the first fourteen minutes the market did what opening-match markets do: nothing. Mexico drifted in a half-point band around 69% while the Azteca settled in. Edition #2's "tight, nervy opener" thesis, live on screen.

Phase 2 · The cliff (19:14:49)

Mexico scored — and the market repriced +14.5 points inside sixty seconds, 69% → 83%. On our tape the entire move resolves in under a minute: the draw leg collapsed from 21% to 13% in the same window. A bettor watching a 5-minute-refresh odds screen saw this move after it was over. The 1-second tape shows the whole staircase.

Phase 3 · The slow strangle (19:30–FT)

No second cliff — just a 28-minute grind from 86% to 95% as South Africa's price died by degrees (2.3% → 0.8%), the signature of a game going exactly to script. By the 70th minute the market had stopped pricing a contest and started pricing a ceremony. Settlement: 99.9 / 0.0 / 0.0.

Two for two — but the Korea result is the more interesting row: the closest three-way price of the slate (35.4 / 31.4 / 33.3) resolved to its nominal favorite. When a 35% favorite wins, the market wasn't "right" so much as honest about not knowing — and that honesty is the product. Running Brier score: 0.389 (random = 0.667; lower is better).

Matchday 2's pair fits the pattern test perfectly: Canada 53.1% (a co-host expected to labor) and the USA at 49.5% — still the coin flip nobody's arguing with, now hours from resolution. If the USA game stays close into the second half, the tape will show something no World Cup broadcast has ever had: a knife-edge market breathing in real time, one second at a time.

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