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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。
' S4 C/ r; A- H我们先引入下列符号:( L, C; X, }& D3 k' B) P$ c
Pn(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。6 S- U& f' ^& p' Q9 }" k2 Q
即:P0=全场进0球的概率;P1=全场进1球的概率;……。
R* d e7 M6 S那么 ∑Pn=P0+P1+P2+……+Px=100%。
( ]: D- p. d& C3 yBo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。
: G3 N6 L a: w4 ^+ S3 _+ I* HBu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。2 w% p% W" V6 v5 R1 v0 b/ Q
- u( i+ P( X% |4 V# k" R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。% K# S, u6 _$ b- p* ~; L8 W
在任意盘口G下,全场比赛会出现如下3个结果:
/ P2 \6 L6 z5 Z0 \& |8 J e1:K>G 即出现我们通常所说的大球。
+ F9 ]7 {3 W( P$ l2 g W2:K=G 即出现我们通常所说的走盘。* r' i+ ^6 \. t
3:K<G 即出现我们通常所说的小球。; Z# A, J1 X/ M1 N0 d- z
' D' { l+ l; E! a那么在此盘口下投注大球的回报总数额为:! x3 W; K) j1 c5 c
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。3 b) P& ?! F" G
D2:(K=G)={Bo 即走盘退回本金。
3 n' J2 L/ P* z( A4 L1 bD3:(K<G)={0 即输盘失去本金。9 R% @! ]6 j _0 @1 t1 r
7 p! a3 @( P+ P7 W
同理在此盘口下投注小球的回报总数额为:' L2 E- \6 O9 P @4 B4 ^5 k
X1:(K>G)={0 即输盘失去本金。
# O+ X* g+ S$ [! F% oX2:(K=G)={Bu 即走盘退回本金。& h' H( x P$ | L6 ^( S, f/ g
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
8 |+ S& a, R) P# ?( f% V K b% }1 R C9 b; c5 I, Z0 c$ W" ~
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。
7 h$ J0 O v7 @% M' `0 k; \2 [; G% w( p6 W
1:大小球盘为2.5球(G=2.5)
) {/ C* w. l2 o3 H* x" {
8 l' s( A# n0 p3 o1 y在大小球盘为2.5球时,投注大球的回报总数额为:
( g7 F1 A/ B# [0 g( ?! E# JK=0 D0=0 ( ^- V. `: }1 j, l# T2 a
K=1 D1=0
8 ^/ v. G5 f3 x9 [9 t7 W" {K=2 D2=0
+ ~4 S$ |8 L7 i6 U% RK=3;4;....x D3+= {Bo* O / {! x- P% h( d; k
& B2 W+ Z+ n z) X2 z/ G0 Q5 \0 n
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); M( Y' i2 ]. o$ I
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。
# ~% r7 q" f4 g8 R: U& g ∑D=Bo* O*(1-P0-P1-P2)=Bo# [: G' Q6 Q T- _9 y( T
O*(1-P0-P1-P2)=16 r P+ P% E' N
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)" m. }: ~5 r! ?- [
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)
6 h3 R$ u' H+ ~, n- f8 @7 }! z( v& v2 J7 O5 f6 L7 N
在大小球盘为2.5球时,投注小球的回报总数额为:8 m0 ^: F; }8 u* S- J
K=0 X0=Bu*U 8 e+ K" a: M7 [6 [
K=1 X1=Bu*U
. l ~+ h, ~# J) L( u& ?% IK=2 X2=Bu*U
' w0 P/ z+ R" `8 ?0 _4 d, r+ dK=3;4;....x X3+=0
6 ^/ j) `& ~, F
, k! K& D3 y. ~, c投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U% {- g. T0 }" E5 `2 c4 j. Q
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。- ?, d1 J1 ^$ Q) R
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu
4 v; z, r; w% i2 Z8 J# s" N U*(P0+P1+P2)=1
/ r! V/ G; H# M9 t+ c& e) ] x. ] 在此盘口下,小球的赔率为 U=1/(P0+P1+P2): G9 i- S% }5 A
! H$ }* Z# E0 r5 i( w
2:大小球盘为3球(G=3)
- `0 }3 O$ E, I# J
1 x! h# f" b( C- d4 h在大小球盘为3球时,投注大球的回报总数额为:! q j1 i8 l* G5 M$ {* b8 F% T5 D
K=0 D0=0 % ?5 C7 [: B; z, O
K=1 D1=0
7 R& C: N# ~$ L' n5 `/ s; }K=2 D2=0' v5 y2 W! q: J% K8 _
K=3; D3= Bo
3 y" E, p$ } U ?K=4;5;....x D4+= {Bo* O
# }; r Q- P, Q1 ]! M1 ?/ c& I# h+ ^( K& b6 G1 Z3 X: F
投注大球的期望回报总数为:4 E' A1 {4 r* Z+ b/ Z. b( q7 e
∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)
( S9 n" M, J& O0 M: L! 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。( \/ h0 ^5 w' E0 p" L
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo
0 j6 C6 C! K8 w' {( P& o P3+ O*(1-P0-P1-P2-P3)=1
+ O+ B7 c' ]1 R+ h/ ^$ T% [ 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
" f& I3 e+ x, D' D 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)
/ L7 P; N% ]" {* {* g
3 f. r4 r% r; X6 ]' c3 m在大小球盘为3球时,投注小球的回报总数额为:
6 o1 p5 i& A) a( | |8 YK=0 X0=Bu*U ; d9 B2 D" H$ V- f( C
K=1 X1=Bu*U , D7 X$ i- u8 S# x" |
K=2 X2=Bu*U 3 `, \$ R8 Y. z' U5 J" k# R$ F
K=3 X3= Bu7 B' t% k) ~3 M V* m3 n
J=4;5;....x X4+=08 ~( G: ~3 E7 g: Q/ X1 S. k
2 X y9 |1 L7 k7 z投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
1 c3 a$ z/ z6 m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。" `3 W2 `$ f& Z9 Y% e( t
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu1 H6 ^/ R8 Z ~1 u
U*(P0+P1+P2)+P3=1
: ~% ~4 B; x" J6 B q 在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)4 k0 |; f2 |9 \2 Y% r; ?; @
! m$ a# }, O$ R" @7 |9 I, K6 _9 ^3:大小球盘为2.5/3球(G=2.5/3)
7 G$ `9 }7 Z) i H
( W" s8 Y$ W( Q7 h/ E3 d在大小球盘为2.5/3球时,投注大球的回报总数额为:% w& ^7 i# T+ _; V# [5 M+ _2 ?
K=0 D0=0
: j7 {( J1 Q, x/ T% W! nK=1 D1=0
0 d% ?- [! W% G; `" O$ o R. s BK=2 D2=0
$ F7 |& V9 }" a, qK=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)9 e) j& L2 `4 J5 T; X
K=4;5;....x D4+= {Bo* O
( y; o |9 u3 W$ F1 N2 [$ v; I2 N) w$ i" T5 n0 [
投注大球的期望回报总数为:2 j+ E& h& u8 Y
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
1 A4 O2 Z, ^1 ^6 C2 D* G, P2 ` = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3); g+ N8 ~$ U, ~1 v' @ z0 W
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。& P0 U2 F! S% T4 m( W
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo# N$ `: r" v9 Z/ }1 U, N
P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1! V9 T7 q' y8 ?
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2$ s/ D/ @6 o* H$ H4 Y
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2) + m( [ d. B& z
% R) B1 f6 b3 k. s4 m在大小球盘为2.5/3球时,投注小球的回报总数额为:
% Z3 H4 o& A- m& Y# X( c- l2 NK=0 X0=Bu*U 7 T0 L% Y/ P) \, Z6 B: E p" K/ e
K=1 X1=Bu*U
3 h9 ]5 v' @& |" h) f3 S( J! R* ~K=2 X2=Bu*U
) ~6 d+ i$ ^% e, BK=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)# b7 r, A% I4 h* |; \( B6 O8 {5 G
J=4;5;....x X4+=07 T1 P* O4 U& v8 W, L
% Y% Q- p8 s' t, O) L 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/27 ^9 L+ Z+ d) h: _+ J. O& j: 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。2 z# c" H. E# ]9 N' A& }
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu2 f: q$ F- p2 H
U*(P0+P1+P2)+P3/2=1# }3 ]3 Q/ T3 v% R/ A
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
+ g5 k( F% d% W4 _' {
; ^# i! G0 t# V0 _4:大小球盘为3/3.5球(G=3/3.5)
0 I% M0 X9 e; @; p9 F; L+ m/ }8 {/ u% d `# e9 `. U
在大小球盘为3/3.5球时,投注大球的回报总数额为:
* \0 W3 J3 h0 w7 nK=0 D0=0 - i$ y0 o/ v) h
K=1 D1=0 7 J$ {3 \! _8 }2 ~+ `6 M. _
K=2 D2=0
" d2 _& ]8 z `3 X, fK=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)5 J$ V+ k# F/ G: Z# \
K=4;5;....x D4+= {Bo* O * n: Q6 q# q+ ~, P% [2 C
' f+ C' ~& ?6 a. Q; |3 m7 A2 i
投注大球的期望回报总数为: ^$ O$ J5 @) D) ^0 G0 U
∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
6 e! g( [6 x0 F = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)" L" ?0 z9 z) 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。3 C x/ S( X, O& I9 z
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo
8 ?3 l r( O0 `5 b# x# A P3/2+ O*(1-P0-P1-P2-P3)=1
7 E7 O3 ~$ J$ f O*(1-P0-P1-P2-P3)=1- P3/2 i1 C! A) ~! @0 }
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)6 S: J8 e) Z) \! S* b
或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)
/ r2 {1 g \3 M9 x# D" ~
- s# r2 ]0 w5 u* z7 J/ K$ v+ b在大小球盘为3/3.5球时,投注小球的回报总数额为:0 X0 J0 i/ F" y3 b& n. S, Y" k8 g$ I
K=0 X0=Bu*U & Q0 a7 i+ o# g% k
K=1 X1=Bu*U
* B7 ~6 J+ S# z6 D& P6 G5 W( IK=2 X2=Bu*U
* }* }+ m8 K8 g1 P. v( J3 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)
, q9 A! ~9 W' n- kJ=4;5;....x X4+=0
& {. B5 `, K2 e, x8 d& i. p* V
: h/ {8 ^% m c; H% L$ w投注小球的期望回报总数为:* \( T. X# c3 N/ Y, V! t3 b
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
9 }; W$ {3 h% {+ ~+ J9 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。
9 V( I% w1 s5 {6 u: C7 t ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
8 W) Y: ~. ~3 r2 ], L U*(P0+P1+P2+ P3/2)+P3/2=1
9 Y3 s* o5 I/ p4 K+ v 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
9 B% X0 B5 Z% V1 e1 G% P# U0 z9 Q, C6 C8 O
4 X* l0 l- h% n8 J0 o* E9 i4 Q. u9 l
/ T$ x$ v! w" r8 f7 ^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 q0 n( Q- s6 e% o) O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!9 g1 i7 E7 Q+ k' ~8 c1 I% v9 U' E
) M f2 E" ?% D! W
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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