By Neil Macdonald — August 15, 2026
A drifter is a selection whose odds lengthen before kickoff — the price "drifts" out, meaning its implied probability falls. A team that opens at 2.00 and closes at 2.30 has drifted: the market's final estimate of its chances dropped from 50% to roughly 43.5%.
Probability in a market has to add up. When money piles onto one outcome and its price shortens (steam), that probability comes from somewhere — the other outcomes lengthen. Steam and drift are two views of the same repricing. SteamWatch tracks both sides: steam moves on one page, drifters on another, each with the outcome recorded afterwards.
A price drifts when the weight of money and information moves against that outcome: the market is backing the other side, confirmed team news weakened the case, or the opening price was simply too short. Whatever the specific cause, drift means the market revised that outcome's probability downward — and kept revising it until kickoff.
Blindly backing drifters means systematically taking outcomes the market downgraded. Blindly fading them means laying prices the market has already corrected. Neither is free money — which is why the honest approach is to track what actually happened, match after match, and let the record speak.
View Drifters on SteamWatch