トライキャスト計算機 - 3連単ベット
無料トライキャスト計算機。競馬のストレート・コンビネーショントライキャストのペイアウトを計算。
この計算機の使い方
- トライキャストタイプを選択 — ストレート(特定の順序)または組み合わせ(6つすべての順序)
- 3頭の馬それぞれのオッズを入力
- 単位ベットを入力
- 合計ベット、結合オッズ、リターン、利益を表示
公式
結合オッズ = オッズ₁ × オッズ₂ × オッズ₃
ストレートトライキャスト: 単位ベットで1ベット。
組み合わせトライキャスト: 単位ベットで6ベット(3!の順序)— 合計ベット = 6 × 単位ベット。正しい順序のみ支払う。
よくある質問
What is a tricast bet?
A tricast (also called trifecta in the US) is a bet on which three horses will finish 1st, 2nd and 3rd. A straight tricast requires the exact order; a combination tricast covers all six possible orderings for six times the stake.
When should I use combination tricast?
Use combination if you’re confident on which three horses will fill the placings but unsure of order. The trade-off is paying 6× stake. If you have strong opinions on the order, a straight tricast pays the same on the winning order at one-sixth the cost.
How are tricast payouts calculated?
UK bookmakers usually use the Computer Tricast Forecast (CTF) formula based on starting prices and field size. The multiplicative model (Odds × Odds × Odds) is a rough approximation. Actual dividends can vary by 30%+ depending on field strength.
Is tricast a good value bet?
Tricasts have very high variance — the probability of winning is low but payouts are huge. They should be a small fraction of your bankroll. Sharper bettors tend to focus on shorter-priced markets where they can find structural edges; tricasts are mostly leisure bets.