Table tennis & prediction glossary
Short, plain definitions of the terms you will see across DeuceLab.
Rating & model terms
- Elo — a self-correcting rating; winners take points from losers, scaled by the gap. Base 1500.
- K-factor — how fast a rating moves after a result. We use 24.
- Win probability — the long-run chance a player wins, derived from the rating gap.
- Calibration — aligning probabilities with reality so a stated 60% really happens 60% of the time.
- Temperature — the single number we fit per league to calibrate probabilities.
- Brier score — accuracy of probabilities vs outcomes; lower is better, 0.25 = coin-flip.
- Walk-forward — grading each prediction using only pre-match information (no hindsight).
Table tennis terms
- Set (game) — first to 11 points, win by two.
- Match — best of five sets; first to three sets wins.
- Deuce — 10-10 in a set; play continues until one player leads by two.
- Sweep — a 3-0 set result with no set dropped.
- Decider — the fifth set, played when the match reaches 2-2.
Market terms
- Match winner — straight bet on who wins the match.
- Set handicap — a spread on sets, e.g. favourite -1.5.
- Total sets — over/under on how many sets are played (commonly 3.5).
- Total points — over/under on combined points in the match.