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大小球盘本质上就是与全场入球总数相关的盘口,计算它的依据就是进球数的概率。
, G& R7 ^1 y$ X我们先引入下列符号:
* ^4 W5 E- L* | T! GPn(n=0;1;……;x)表示在一场比赛中可能出现的各个进球数的概率。
- ]* i+ a7 E: H3 O, k, Y即:P0=全场进0球的概率;P1=全场进1球的概率;……。
, a% b- V1 m, N) z5 p1 P那么 ∑Pn=P0+P1+P2+……+Px=100%。7 k6 K6 [1 E7 _( w: |
Bo表示大球的投注总数,D表示投注大球的回报总数额,O(Over)表示大球的赔率。/ g( z& |" Y# T- u* h$ c9 r
Bu表示小球的投注总数,X表示投注小球的回报总数额,U(Under) 表示小球的赔率。( R! h8 ]" j% L% D
; T( y! J& M4 Y( q+ Q( u. h
在一场比赛中,我们以G表示大小球的盘口(G为任意数);K表示全场入球总数的结果。5 Q9 F" k# [9 M4 {' R0 |4 a _# _: b
在任意盘口G下,全场比赛会出现如下3个结果:* {+ q, p0 A6 ~3 e8 V) d7 V
1:K>G 即出现我们通常所说的大球。
+ w+ f; V# N3 _" K0 k0 R- \# i2:K=G 即出现我们通常所说的走盘。
% `( |. \) ]+ H3:K<G 即出现我们通常所说的小球。
; h; E, s2 f, E" q
9 @6 r* C8 s/ ~. R l那么在此盘口下投注大球的回报总数额为:
' ]* h" V4 r1 A( x; zD1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
- B9 o& n6 F( M* A" c( N$ E. k' JD2:(K=G)={Bo 即走盘退回本金。
, m8 i! W, f! cD3:(K<G)={0 即输盘失去本金。; Z- {/ z+ g7 \ G
4 L9 K9 d! w% q. {( E# y. |) s同理在此盘口下投注小球的回报总数额为:
$ W$ d: T2 Z1 V9 f4 i* ~% ?X1:(K>G)={0 即输盘失去本金。
8 d5 k4 r( x+ f7 r, \X2:(K=G)={Bu 即走盘退回本金。7 `" D, v Y3 Z3 C' k% u/ E
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。; `3 _. R! B" k7 k3 i
6 Y/ |( x- U& f" K! y
下面分别描述大小球盘为2.5球;2.5/3球;3球;3/3.5球时的大小球盘赔率计算方法,其余盘口可以由此类推。$ t, x8 Z4 E! |- q' P
$ N8 z7 H" Y- D' \# O$ N( m1:大小球盘为2.5球(G=2.5)
7 `# c2 t+ X i, ~
7 x) g) c. ~6 x* ] |1 e在大小球盘为2.5球时,投注大球的回报总数额为:* K2 x* ^: n% A: m, |
K=0 D0=0 ( W1 x/ Y6 |* w0 q
K=1 D1=0
% t, M4 |& n! E; n/ a0 o1 XK=2 D2=0" }7 s# I& W- ?$ s* q$ B
K=3;4;....x D3+= {Bo* O
' f+ d- m2 I2 ^' _) e/ `+ d. \: z+ {* G& S# S7 f
投注大球的期望回报总数为:∑D=Bo* O*(∑Pn-P0-P1-P2)=Bo* O*(1-P0-P1-P2)% E0 L4 A \! H7 G( N
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。2 L3 R, V4 F* ^: U
∑D=Bo* O*(1-P0-P1-P2)=Bo# @7 Z4 m1 y6 _. K2 W7 |
O*(1-P0-P1-P2)=1
7 G# X I0 h' T9 U1 M 在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)8 B/ \5 `. f+ _& O3 l# i2 j* H
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)1 a3 W5 y: E2 _) M
# I/ n* ~* ]& n在大小球盘为2.5球时,投注小球的回报总数额为:
$ J- r& v% E- Z Q; ^. \2 NK=0 X0=Bu*U ; S' w+ B2 @' y
K=1 X1=Bu*U / i' S# |* h9 D( U. P( \/ e: y
K=2 X2=Bu*U
1 |7 s/ G" W/ z- m7 bK=3;4;....x X3+=0
7 v h2 I9 b, j k/ ^: q$ o; Q7 ]7 `1 Q$ j1 w4 K
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
/ _2 X9 E* v% C" l, R在公平条件下,我们可以认为实际投注回报与期望投注回报相等。' r6 h4 I, s% s1 s. b8 A! G
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu& M% y/ A- q# [( j9 `8 |
U*(P0+P1+P2)=14 G5 v. N" k5 o) ~
在此盘口下,小球的赔率为 U=1/(P0+P1+P2)7 e) H' C3 y- J$ V- G( t& L
- S% O9 X3 D- R- w( Q
2:大小球盘为3球(G=3): h( J7 m+ F2 D& V
+ U% M/ A' ]# ?8 Z4 R% O ~
在大小球盘为3球时,投注大球的回报总数额为:' b. L2 W9 F+ u# r7 L
K=0 D0=0
9 c. T: [8 v* l$ SK=1 D1=0 % u3 Y8 t# ~' T5 r* F$ f2 n* l( l
K=2 D2=0
- Q6 y4 i$ I" A- X, [# iK=3; D3= Bo* @* w/ ^ C- W: x" E: }2 \/ Q4 d$ W
K=4;5;....x D4+= {Bo* O 4 ]) k9 _% Y- C8 j
$ }$ t- i V$ ]9 `" w; @) _投注大球的期望回报总数为:8 D& D3 z9 R: I8 z0 p" D ?
∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)
7 e, T+ N. j% Y. G- L7 [' a) {7 d在公平条件下,我们可以认为实际投注回报与期望投注回报相等。" ^5 Y4 m2 q7 H" `/ V) @/ p
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo
3 J8 u7 {: Z/ }( Q P3+ O*(1-P0-P1-P2-P3)=1* `" t9 O3 e0 q6 ~* P
在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)/ L' Y2 H. h7 [
或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)6 R; c9 [' s6 X7 \& \' t3 d. d$ N+ r4 c
. w9 o. e* Y! ~9 { l# S在大小球盘为3球时,投注小球的回报总数额为:
" D/ ?/ A5 C4 H* CK=0 X0=Bu*U
: X, [9 e: L4 k8 O8 [- U1 }K=1 X1=Bu*U
9 M" k5 t& y, t' [# R/ oK=2 X2=Bu*U
8 i$ }; Q+ F$ g6 L4 e( J& n3 @) nK=3 X3= Bu
" V2 ~) r0 b5 q% a( gJ=4;5;....x X4+=0+ H2 I/ Z" u5 v$ k/ U' d
+ \ k, ?7 D% U) k* a* o+ e
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
& D* Z5 K& T) t2 y% S* @在公平条件下,我们可以认为实际投注回报与期望投注回报相等。4 e! l" n: n$ N
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu
" y" f2 n1 h) [( f U*(P0+P1+P2)+P3=1
0 ^5 _* e7 [9 [5 L1 x7 W! \/ a: { 在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)% o. ^) e8 H: J2 C( R
% J. r7 c4 y$ H4 h8 U. `
3:大小球盘为2.5/3球(G=2.5/3)
$ N- l6 K; Z8 e& B X/ b
+ w; S w; ^ c) q2 p$ ?在大小球盘为2.5/3球时,投注大球的回报总数额为:
( U% K/ C% {6 X7 ]1 GK=0 D0=0
2 N" ^/ U- x3 ^9 ~1 O D! WK=1 D1=0
- Y) f; y/ o0 y/ f7 X/ bK=2 D2=0, W4 w6 W. J' w
K=3; D3= Bo/2+ O*Bo/2(即投注额的1/2在3球盘走盘; 投注额的1/2在2.5球盘赢盘)3 j" d }" o# u. n) G
K=4;5;....x D4+= {Bo* O " @) R. ]: \' O7 R9 }8 [. m
5 H1 r' m4 S' T. j. y I
投注大球的期望回报总数为:
0 H4 w9 p$ \, y- N J8 Y8 z% ` ∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
/ [5 Y9 w, A* `) c& x: J: x+ p = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)/ q2 y4 a" J+ M2 g: T3 y) Y/ X! b
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。1 M" l! O" \( N( [* \( p/ U$ R
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo9 [& k$ _* `: w) t, i
P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1, c) E" Z% X- ]; Z
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2
" U8 h7 e5 q. V% X/ @+ r 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2)
0 H4 u3 v4 D- L2 P7 i# |/ v1 e1 H8 i1 [+ i9 m' n( G+ s; Y
在大小球盘为2.5/3球时,投注小球的回报总数额为:% g# m. |* N+ {7 y3 r# v) u
K=0 X0=Bu*U ' O; h; x4 ]7 |, h" M$ d) q
K=1 X1=Bu*U # R* B% |3 k8 O
K=2 X2=Bu*U 5 ^0 q0 l2 X M7 X+ z5 N. x
K=3 X3= Bu/2(即投注额的1/2在3球盘走盘; 投注额的1/2在2.5球盘输盘)
7 z- M) ~; s4 \9 k8 t2 `9 o: xJ=4;5;....x X4+=0
8 T/ b5 t& m: L# k. ^: j
+ o0 G+ K# Z& I9 i0 y投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 w8 x3 \' T u. Z5 O+ h
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。
/ j! u8 I3 p, K4 c6 D. W$ g" n ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu+ F7 w$ a9 \# E& w1 S+ X
U*(P0+P1+P2)+P3/2=1. @0 N: h# @1 b& s g; O1 a
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2); `% H: L0 u V, i$ n
# r9 P* y6 l6 N
4:大小球盘为3/3.5球(G=3/3.5)& _$ @) T/ e" r, w
" W- \4 \' |* \" y* h
在大小球盘为3/3.5球时,投注大球的回报总数额为:
* ]3 q* b; \' J! G( q5 ?- G4 OK=0 D0=0
/ c( b g. v% w6 ^9 l4 b# sK=1 D1=0
' Y6 C& {& U3 V7 PK=2 D2=05 T8 i/ [& S! G5 n
K=3; D3= Bo/2(即投注额的1/2在3球盘走盘; 投注额的1/2在3.5球盘输盘) }- y" f) f' V5 u2 K
K=4;5;....x D4+= {Bo* O ( t1 N& K! X8 a7 R
9 l( ~ w7 K$ l
投注大球的期望回报总数为:
6 Z. R# u* N; H( m+ v& N4 {' ^9 i ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
5 d. \' b$ ^4 r! c/ S = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)4 s4 \+ g. e1 e" X2 v+ c
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。
% A- n. }* M7 j4 r' M Z ∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo4 m0 X0 ?2 g7 d) ]
P3/2+ O*(1-P0-P1-P2-P3)=1/ F) a: |3 p* A# h6 S
O*(1-P0-P1-P2-P3)=1- P3/2) U9 R. \) T! z! U& J; ^
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)! `3 @+ J& K: ~2 \% u A
或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)- b: ]( H3 f% d2 w& Y
, O4 i% v- F f! Z; L. i B
在大小球盘为3/3.5球时,投注小球的回报总数额为:: @) _# W; s3 e% u2 ^2 V2 T
K=0 X0=Bu*U & P5 g' k' q" R( j4 r8 }+ ?
K=1 X1=Bu*U , n6 t" d+ q4 r
K=2 X2=Bu*U
3 D5 z* a1 ?2 PK=3 X3= Bu/2+U* Bu/2(即投注额的1/2在3球盘走盘; 投注额的1/2在3.5球盘赢盘)
- S: L1 C' X9 a8 _ V3 TJ=4;5;....x X4+=0! q/ M# u) b- S- U2 v; q# v
4 M; i; Y. D$ u# [8 Y, _投注小球的期望回报总数为:
! E$ e0 k% B4 N0 O6 | ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/23 R- p {5 c* @2 D8 s* Y
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。
0 ~% F4 g0 e* T! Y/ `4 M ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
+ x, e! C) C& f7 [7 z2 X U*(P0+P1+P2+ P3/2)+P3/2=1* Y- l' Q! V4 E
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)0 u# f/ F3 x6 p( P2 J3 [
# l& V9 z8 t( ]6 m: i) G
3 L8 h) ]: E5 O; G7 H0 O; t一场足球比赛就是以主,客进球数最终是多少来体现其结果的.
$ [$ @8 s: {* {! f4 {0 p$ \ R大部分博项的赔率都可以通过进球概率这个基本数据实现互相转换!+ { R; H# _& S" o: T j `8 S
. {8 h' {" l. L' a y" x
P0 P1 P2 P3 P41可以由统计函数生成,也可以由开盘赔率计算得出,比如用波胆赔率计算。(这种方法计算出的Pn值有一定的偏差) |
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