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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。
8 E2 ?. g1 }4 s5 h3 z8 }5 F* t% D0 n我们先引入下列符号:* u& K) p$ K2 \2 f& y/ `
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+ [! X1 r7 E0 w
即:P0=全场进0球的概率;P1=全场进1球的概率;……。7 N& z d) J# n3 i* i
那么 ∑Pn=P0+P1+P2+……+Px=100%。
- R5 s% j) z1 A9 F- h8 p" T) DBo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。
0 o$ c4 }5 D3 G; M1 q- n- o1 CBu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。
^8 ]! P5 b3 T& t9 n
1 }1 R! {% m7 m4 h, c3 U/ ?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。
" h3 `3 N5 Q1 v. {5 o% ~; ?在任意盘口G下,全场比赛会出现如下3个结果:
& C `' y/ Q8 b5 J0 K1:K>G 即出现我们通常所说的大球。9 l/ F8 p8 s w
2:K=G 即出现我们通常所说的走盘。* v2 I8 z8 a- e/ r" H( @+ n
3:K<G 即出现我们通常所说的小球。
% d" V' u( H7 l3 R" C
6 q9 W0 U9 s0 r$ M那么在此盘口下投注大球的回报总数额为:) h, M& ]1 P7 p. i0 H* P7 ]$ }
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。8 h3 H( g% w* f: Z" D
D2:(K=G)={Bo 即走盘退回本金。/ y% T; ?- a7 x2 j
D3:(K<G)={0 即输盘失去本金。
" S0 U! @# |" }4 u% r
% Q' H1 U- ^' f$ H, q& C同理在此盘口下投注小球的回报总数额为:
m) u3 M9 g( V9 [X1:(K>G)={0 即输盘失去本金。. Y' {& o% F. W( y- s8 }/ F s w% N
X2:(K=G)={Bu 即走盘退回本金。
+ F R1 t8 m ^ q' a7 qX3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
- D' W) l& f [& m3 Y
) b; t* y/ h/ t9 c" U. ~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。
2 t* P. f$ E7 v; T
6 k8 J! x6 c, t' D; o! _1:大小球盘为2.5球(G=2.5)
# X6 o9 m% e+ D
9 _" n, y; | F* y1 e+ T在大小球盘为2.5球时,投注大球的回报总数额为:
3 f; w0 X( Z" |8 g( o. O5 D+ NK=0 D0=0
6 D0 H4 O% |2 F; I8 \K=1 D1=0
" ]0 M' t7 j& N1 n! H8 x: n) HK=2 D2=0
0 I4 W) B: c- y! xK=3;4;....x D3+= {Bo* O 6 h' T" T1 Y* @* J# f% e& e' T
: C2 K; l; i! y5 ?; _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)
' J4 T% @ A' z3 J* a5 j, |% 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。0 D5 _+ R$ O/ Q7 ^( M' }7 B' _8 j
∑D=Bo* O*(1-P0-P1-P2)=Bo( P, L: t5 n0 _( u% E: C, G, y/ N
O*(1-P0-P1-P2)=1
; O$ f/ ]' \( k' i+ O! p' k) p 在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)
' q1 _) J% c. C; f" y5 W 或者表述为 O=1/∑Pn----------(这里n=3;4;……x)
" F: q4 v$ Z" @& p
+ e6 V% W; m6 F" f j在大小球盘为2.5球时,投注小球的回报总数额为:9 f7 J) j7 M6 g8 s: R
K=0 X0=Bu*U . y g# R8 e+ F: ~) R
K=1 X1=Bu*U 6 `5 S3 s6 S, j- ?2 E3 y- G* j
K=2 X2=Bu*U
$ B$ T! t/ S$ oK=3;4;....x X3+=0# {$ b& e# F8 ~2 ^
7 C7 I9 i5 E' E; Q M1 ?& h
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
5 L4 Z% r) \; N9 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。 K) K' b5 w$ ~5 H% \
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu- P& B* E8 y/ `1 y( s
U*(P0+P1+P2)=1
7 Y0 l( U4 v$ y' X! E" y8 d3 C 在此盘口下,小球的赔率为 U=1/(P0+P1+P2)
& A1 B$ O- s4 u
5 h0 i9 Y: _" H* A: U2:大小球盘为3球(G=3); \" x# S$ R3 N5 j% @, a
% \1 S! z+ a" x4 m7 J+ @9 _1 T0 T9 p在大小球盘为3球时,投注大球的回报总数额为:, H+ [1 G+ ~; `- | N( U
K=0 D0=0
7 E1 ^; d- `" X- i, T5 t+ {K=1 D1=0 # `! ?) r2 G$ |9 X# ~5 @" X7 v
K=2 D2=0
: i; \5 D0 N0 X4 ?+ q! xK=3; D3= Bo
* j7 N3 o L0 G) bK=4;5;....x D4+= {Bo* O 1 E m0 x) v1 {- H
1 g% D+ _2 x( U' `
投注大球的期望回报总数为:
7 q4 x- j/ \; h( t5 |∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)' q# ^0 d" V( K5 K9 ]* J4 D* 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。* f1 E! z5 T6 Z7 M% `0 r0 {
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo
! A7 b; O3 w! V, o P3+ O*(1-P0-P1-P2-P3)=1
) Q0 U5 P) o+ X8 c5 @4 s 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
% C, O. Z* x9 a1 I 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x) x3 \ j' c9 S# S! X, q
1 @: S' {9 R3 [* M% K在大小球盘为3球时,投注小球的回报总数额为:
) t+ C1 K4 Z% `! e4 LK=0 X0=Bu*U ! ], |& }9 H" l; n4 D' Q9 `
K=1 X1=Bu*U
2 U* J% r( y, y" j2 DK=2 X2=Bu*U / d6 ?5 Q1 `; ?3 R3 [
K=3 X3= Bu6 j# O- S2 J& F/ B" f! E& A7 g
J=4;5;....x X4+=0" t% H" p; N. {: ?( c
; V% x ^7 l0 p" U投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
+ r" H- X/ b( s& Q. c3 [) ~4 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。
% X2 [/ Y6 a/ w) B/ b# @ ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu' L6 u* X7 u# x1 O, `
U*(P0+P1+P2)+P3=1
/ k: d1 S" ]( ?& _0 g 在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)
" Y% W2 u% |6 K# K
! Y5 b; u8 U+ q! ?$ A3:大小球盘为2.5/3球(G=2.5/3): j |1 a5 K' ], ^
* I' m G1 S' Q( E/ S( }1 |7 k在大小球盘为2.5/3球时,投注大球的回报总数额为:2 k! I6 i& \ l' @3 n! l# [
K=0 D0=0
" ~2 w* g( s4 B: U- C! JK=1 D1=0 " @ p! v8 |8 o1 q6 m) ?
K=2 D2=0
$ ~2 L' ]1 y. Y6 o+ Z1 s( jK=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)/ Q: f$ r' i+ i7 O0 K- H# G
K=4;5;....x D4+= {Bo* O . p. U' _( ?) m; _
$ T8 g4 l: K2 I9 O
投注大球的期望回报总数为:* g4 F7 M1 }2 H6 @; g3 a9 A
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
2 ?! E' z7 ^5 Z6 C& A" O = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
2 H, M% R! h k" \5 a1 r% 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。& ?, `! q9 {( J& Y; T) A
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo2 q# y1 I* e( t
P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1
8 ]3 |* N1 e7 v" B: E O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2
# g8 C" N$ _$ }! v5 Q7 \ 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2)
" N1 Y5 T% ~) n7 |
, E6 t' W2 b- u在大小球盘为2.5/3球时,投注小球的回报总数额为: a4 D/ n; H- A
K=0 X0=Bu*U
- _8 i3 q1 j8 L, }' g* wK=1 X1=Bu*U
+ U* [& l* m/ ~' @3 s' F \K=2 X2=Bu*U
+ p5 B. G' b# a9 C( f) G6 xK=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)
" g( M7 ~2 k2 G6 LJ=4;5;....x X4+=06 O: _/ c& \% Y/ v! x3 @9 `
. v0 D# u+ j: E" s+ |
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
, {. ^3 U8 @" q$ m% Z0 F" d8 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。
/ h3 M. @0 Y I9 d1 y* q7 `; h ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu2 M5 U4 `; z0 }! _6 ~0 ]
U*(P0+P1+P2)+P3/2=10 a& @! @' N4 x" \0 ]
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
+ i# G4 ?1 O+ f3 q' Z/ g# ~- C( }6 v9 T$ ]" a1 O0 z; }1 {5 c) ]
4:大小球盘为3/3.5球(G=3/3.5)
/ C, D, I K6 X2 U; d1 C4 f" U' O) N. l* w6 P( p
在大小球盘为3/3.5球时,投注大球的回报总数额为:
" N X0 }8 J }7 [K=0 D0=0 5 k5 ^7 r, ^- i; B
K=1 D1=0 1 m! J5 y& K7 S/ }+ g
K=2 D2=0
3 u+ _ {" D" h; H( xK=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)
* q/ q1 K8 i5 g$ ?K=4;5;....x D4+= {Bo* O ' g( T; v; Y% p6 q; P: }, |
! P. F* }+ L) y/ S* o+ H% t
投注大球的期望回报总数为:
3 o' n6 ]% n! p ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
* x$ Y; e7 B, G: U a4 k: e$ l = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3); z( F2 l( o( \7 r {. D2 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。1 S8 ]: y6 K# s# k0 P1 g+ B; m
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo
% W) H& ~6 s. L- B' r- L Q P3/2+ O*(1-P0-P1-P2-P3)=1
; k! M* n" ~3 R O*(1-P0-P1-P2-P3)=1- P3/2
9 K# Z- E0 b1 E 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)
' E; R1 L+ e; T' i 或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)
1 K M/ o0 ?* L2 L- e7 x# g5 q3 q& y6 f
在大小球盘为3/3.5球时,投注小球的回报总数额为:. a5 f6 u1 g, c0 {! }
K=0 X0=Bu*U 1 ], U1 W/ F- M. F
K=1 X1=Bu*U 2 Z' h3 w t/ l# B6 c1 {, e8 j
K=2 X2=Bu*U
0 C% x+ l$ H5 P' z" q' RK=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)
) I8 J/ z" f: L% LJ=4;5;....x X4+=0 \) v! k& X4 m; U- ? O0 _9 K6 }
) B0 P9 l, g$ e0 h' N投注小球的期望回报总数为:
6 R1 J* K2 X* \$ |! c ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2' w6 \ S& B- [" l1 o; ]
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 |9 g: g, _3 N. E' }3 O6 d! {; H
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
/ f! U$ a; [5 I! a. M# x U*(P0+P1+P2+ P3/2)+P3/2=1# n% O I( W* p- S; h* B# \) C' [0 ~
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2), j7 K/ P4 X: L- l% T4 Q1 t
+ `1 G8 C, _! k1 L: c2 H
$ p& ^7 _, L7 c( {9 T4 O! a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.! u6 \. \) R, Z7 O. b7 }# W- @
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!
8 [; y' g5 S5 Y6 d I" `
6 y9 q! F* ?6 V% a* z4 O' {1 f$ T3 ]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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