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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。
; ~3 ?5 f3 s. W0 w# t我们先引入下列符号:; L/ ]2 U S" z X. N* m
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。
; I+ H3 Q; K$ G1 E即:P0=全场进0球的概率;P1=全场进1球的概率;……。
: C- E& j7 A. m; n. |% @9 }8 a. o$ H那么 ∑Pn=P0+P1+P2+……+Px=100%。8 F' e" q/ X: o0 I: E* \
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。! W* h5 I) j0 ]7 [7 j* ?
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。
# X5 p; p7 X* j6 T/ y! O
4 b6 c9 x1 p# \. Z# \1 e* B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。
2 H6 a# v+ f- R1 ^. e在任意盘口G下,全场比赛会出现如下3个结果:. q5 B/ N; A1 f5 I: p& k
1:K>G 即出现我们通常所说的大球。4 D' P% s7 F, A: f4 s$ ^* r; F7 `" D
2:K=G 即出现我们通常所说的走盘。
" J& s' y/ a' k& M7 W3:K<G 即出现我们通常所说的小球。
/ H! R2 O2 C `. d& H, Q. { C7 E2 r9 Z' Q4 y) n) Z% W9 @% T, s
那么在此盘口下投注大球的回报总数额为:' X; u6 e5 e; |% Y' V) K) w( D3 Z7 [
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
: ~0 L+ ~) `6 P1 L, V0 dD2:(K=G)={Bo 即走盘退回本金。& Z# K# Y5 Q$ _. z6 {$ i& }8 [4 h
D3:(K<G)={0 即输盘失去本金。. A5 F7 z( `5 k# r% ^
3 l2 }( g3 e( L5 E9 r# u
同理在此盘口下投注小球的回报总数额为:
?/ s _# `7 B3 N& n1 J7 p" GX1:(K>G)={0 即输盘失去本金。$ m$ r# y/ S7 p! P- J k: B
X2:(K=G)={Bu 即走盘退回本金。6 e- [4 m2 H" }( x5 X& ?+ E
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
3 A5 v1 w0 ^9 j ~* z/ B) X, t
+ }9 V4 e% J: K0 ?. f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。
; o- o. F2 e! b8 a; n4 e; Y R# V# H0 x( R5 a2 Q
1:大小球盘为2.5球(G=2.5), H" q$ _* W/ g. I0 o/ X* ^
, H2 _, l# U: P( d$ s+ B
在大小球盘为2.5球时,投注大球的回报总数额为:
5 P- E9 f4 F0 a) o- h( e' Z$ ~K=0 D0=0 . \% }9 o( M& d I& U6 `9 S0 I7 c
K=1 D1=0 ! @: U, k4 c5 y9 s/ P! r
K=2 D2=0
8 x; X5 |1 s& p, Z( HK=3;4;....x D3+= {Bo* O 1 q( ?- ?+ m. R k0 m4 ^3 _9 U) ~
8 s2 S5 S3 b) @( J& X- z
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): ~1 t; f! N3 h( U5 d( u( t
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。
# q1 u6 C% `" p ∑D=Bo* O*(1-P0-P1-P2)=Bo9 N/ g Z: w; H6 v
O*(1-P0-P1-P2)=11 a0 G3 X. G& t. f
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)
0 ~, |+ }* t: b, G/ J" ^ 或者表述为 O=1/∑Pn----------(这里n=3;4;……x)
2 U9 m1 Y6 D8 B* w2 H8 Z
) \1 y- x1 y9 `+ R$ A0 I- S$ G在大小球盘为2.5球时,投注小球的回报总数额为:
, h; \2 x3 [" g& vK=0 X0=Bu*U 5 t" R0 N: y1 ]9 E4 t5 e# w
K=1 X1=Bu*U : Z% w! y3 J" n; e6 Q, Q
K=2 X2=Bu*U
7 W3 ?/ k; ~: L+ ^1 |K=3;4;....x X3+=0
, I& w* a9 P1 F$ t/ @. K7 G7 O" {: Q2 |( a; a) ~+ c" f
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
2 B5 ~0 Y6 R4 l* p- }/ _8 X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。/ { u5 H& t9 ?7 Z) s/ B
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu
; y: g3 _) b* m4 o0 \ U*(P0+P1+P2)=1
7 s! r: x5 Z! _2 r* t( Y 在此盘口下,小球的赔率为 U=1/(P0+P1+P2)# O/ g% o8 C0 I
5 k3 p6 R5 d/ C2 n, g; q. N& \
2:大小球盘为3球(G=3)
2 j* Q, B6 D2 R/ W( O
0 [( F' s: b, v% X; t" }; z在大小球盘为3球时,投注大球的回报总数额为:
' w* E* ~2 w. r" \( _K=0 D0=0
* i7 F) p/ p! _( P0 WK=1 D1=0
) R3 l. u3 N% ~4 J0 ZK=2 D2=06 S; t" n5 O$ B& ~0 T, b1 |4 |3 S5 t
K=3; D3= Bo0 g2 X- ^& J# {% H
K=4;5;....x D4+= {Bo* O - @' _2 D- _4 {- ?
, F) h: o, V9 x) h2 T7 K& l
投注大球的期望回报总数为:
. N1 G# S, N3 |! e∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)
* p$ R) C& l/ k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 O" u) ]% T* ?: o ∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo
6 l3 N5 I0 ?% @4 g, |" s P3+ O*(1-P0-P1-P2-P3)=1
) z! L; q) L. |. l8 q 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
- N* @9 B5 O( ^0 t# _# R l5 J( b 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)% X6 h: e* z8 X8 p2 r0 J# V* Z5 E
* W) I& @! Y( c) ^2 j5 Q在大小球盘为3球时,投注小球的回报总数额为:
( h# v! m- b5 g) W! cK=0 X0=Bu*U 5 y2 C4 D) d: T% p1 @5 n
K=1 X1=Bu*U
7 C0 B1 M& V2 R8 uK=2 X2=Bu*U , O% c* } C- @$ Y) B
K=3 X3= Bu* t3 q1 j# z* g$ F/ Q$ I5 T
J=4;5;....x X4+=0
8 y" T2 \# b! v# o# B4 K! F9 c7 h. W5 ~
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu9 e, B8 F% i# X4 |# A& 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。* f D3 N! C6 E0 M) J( w/ h
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu% ]. w# V# G* \! \. S6 B3 h" K) L
U*(P0+P1+P2)+P3=1% Y& \' y- w3 x/ B7 ?
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)4 v5 M9 i! E J( X$ T5 G+ I3 H$ \
/ B* e5 P" W5 r/ y+ u0 l
3:大小球盘为2.5/3球(G=2.5/3)
* j/ c8 k. ?. y& q2 v0 k5 W& {" q4 `; E, I- l9 {3 b
在大小球盘为2.5/3球时,投注大球的回报总数额为:
: o3 b, Z! b' \- mK=0 D0=0 " I0 Y. }* H: K7 b0 \7 [2 d
K=1 D1=0 7 U8 L/ Q F+ A& x. @' I5 H( ?
K=2 D2=0
; b- y9 [7 t E( ^5 p1 ^$ BK=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). B' X* {* o! u, j7 [9 C R
K=4;5;....x D4+= {Bo* O - F" F" ~8 |& ?! x0 i# \
$ n! m: {. N- `+ q
投注大球的期望回报总数为:+ T' u+ W/ I5 i0 s W
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)/ E, z! A; a; z* Q* f' l4 s
= P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
+ A+ L0 F, S* S: v* x. 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。" o- f% o/ j6 p% w, q2 K! \7 k: z
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
8 Z, r P+ E2 \( h8 a$ c& ] P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=14 |! |/ r% B7 m/ l2 J
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2! u: B3 N( p8 x, P. a: ]: W
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2) , k* e( F# L) ~+ p. r/ x
1 w4 m% x L/ i/ {7 A. T a在大小球盘为2.5/3球时,投注小球的回报总数额为:
+ m& ?* m& S4 b" w* D" E8 LK=0 X0=Bu*U
% R; y0 U" h' Z9 t$ ~K=1 X1=Bu*U - O1 @8 Y1 N8 g7 L
K=2 X2=Bu*U 9 s3 @. V! L5 ^+ @
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 U4 {* t: B3 ?& c& n2 V# AJ=4;5;....x X4+=0
. W ^0 G( w" p7 C5 b
& D( ~$ Q6 u% f3 V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
' c2 ^; j( m* M3 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。1 Q9 |$ W/ C; K5 w! T
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu3 s h& a" p" B, T: p2 g* F
U*(P0+P1+P2)+P3/2=1$ o" I2 Y4 s1 w9 k+ u6 m3 U
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
7 F& R% W7 V4 m1 }8 M- |! k6 B0 g0 Y& s* }& G# y$ W: ~
4:大小球盘为3/3.5球(G=3/3.5)
9 N, I( ?& z; I) B
2 W K! |1 |4 H. q/ i: ~在大小球盘为3/3.5球时,投注大球的回报总数额为:9 _( h9 J G9 q2 o/ O3 T
K=0 D0=0
5 v! O; d0 p. h; C L) i1 P; H, _, dK=1 D1=0 ! \! K( b1 i9 K2 Z
K=2 D2=03 ]( g* {9 _" P4 u7 F
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)1 x4 |% ]/ I ^: c- x
K=4;5;....x D4+= {Bo* O % c: `- |2 C' j
+ Y- l& D6 F% E! f投注大球的期望回报总数为:
' Y" t" {: ?$ b3 N1 h# U ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
/ j- P% [1 ^7 y2 _; M2 u = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)
9 j- k3 v' d& S4 F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。: ?# H$ Q$ W* o! p3 A3 K8 Z
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo0 b0 x4 ]+ H' g/ q8 B
P3/2+ O*(1-P0-P1-P2-P3)=1. f/ @2 i* d; B) r% J
O*(1-P0-P1-P2-P3)=1- P3/2
{, W: F2 u$ J4 J( N 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)& E& V |% H) Z- Q5 N( @+ j$ T
或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)$ F' P" U1 A. U- [
+ h5 t! H: r3 y+ \& B( o6 ?在大小球盘为3/3.5球时,投注小球的回报总数额为:
- z z7 ?6 |& NK=0 X0=Bu*U ) j# S- h! h3 ] @7 _, l% q
K=1 X1=Bu*U
, L+ }3 V8 h4 N l. ~9 m4 T6 SK=2 X2=Bu*U ' T F' l4 O( p2 |3 h6 n! E5 \
K=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) x4 Q: ~! N7 N0 D
J=4;5;....x X4+=0: ?: {1 E& J# [1 E! O. B9 V1 M0 |
' l/ M, P1 b4 r2 U7 P4 I' ?1 \投注小球的期望回报总数为:
" k% y5 h( E( N# ?; |7 @, C ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
8 i( ~6 ?* u+ 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。: Z# _: C& K! F4 G
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
3 m! }) G1 g0 b7 G) a U*(P0+P1+P2+ P3/2)+P3/2=1
4 P5 [' T% q# x 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)4 h0 P/ K4 m1 c4 o
% j+ t8 C% K, U; Z7 @' X2 u0 K4 E
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.
( |7 y& l) z( N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!
0 B$ _ a- x( x( o2 x0 j' |9 H0 C8 Q+ C f
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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