Total goals lines, both-teams-to-score, and small-margin point spreads determine which side of each market pays out based on the match score.
Official referee score decides settlement; thresholds from 0.5 to 5.5 and handicaps of -1.5/-2.5 specify how many goals or goal margins must occur for each outcome.
Southampton and Middlesbrough are the principal actors, with managers, starting forwards, and goalkeepers most directly affecting scoring.
Match officials, VAR operators, and any late injuries or roster changes also influence whether teams breach totals or whether a spread is covered.
How managers set formations and whether either side attacks or defends deep shifts probabilities for totals, BTTS, and spreads.
Early goals, set-piece success, red cards, and substitutions change live odds quickly; weather, player fatigue, and recent scoring form matter too.
Look for confirmed lineups about an hour before kickoff, plus any late injury news and the appointed referee/VAR crew.
During the match watch early scoring, substitution patterns, yellow/red cards, penalties, and expected-goals (xG) flow — those events most directly flip over/under and spread outcomes.