Everyone says do your research. Almost nobody does it properly. Proper research means setting aside what you already think you know about both teams, reading only the verified recent evidence, and then checking that evidence against the price on offer. Applied honestly, that process produced this Brazil Copa Rio preview.

The hosts turn up on 3 wins, 2 losses from their last 5 games. That run is plain for the market to see, which means it is largely priced in already. The more revealing question is what those recent home games actually tell us — whether the manager's setup is genuinely clicking, whether the strongest eleven has been fit and available, and whether the results have reflected real quality or a bit of fortune in one direction or the other. Sustainable form holds across a handful of matches. Flukes fade. the host venue tends to sort the two quickly.

The visitors arrive on 2 wins, 1 draw, 2 losses from their last 5 games. We went straight to the recent road record, because that is where the current truth lives for a travelling team. Are they pressing early and taking their chances with confidence, or do they need the comfort of home to find their best? Recent away results answer that without much ambiguity.

With both teams read carefully, the position we trust is 1 at @1.22, which the numbers put at around 50,30,20%. The match begins at 6:45 pm.

There is a full slate of predictions on the site today, each given the same honest treatment — worth a proper look before you decide where your stake belongs. It is worth repeating: the side that looks the part on paper and the side that turns up on the day are not always the same team, and recent form is the surest bridge between the two.