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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。' \+ _* P: r7 _' W6 \: r8 p
我们先引入下列符号:
& _% Z( D( `, H$ l1 r, x* xPn(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。1 l4 s# k. G1 |# ` G9 S$ X
即:P0=全场进0球的概率;P1=全场进1球的概率;……。
! N2 o5 |: o+ i% U* @那么 ∑Pn=P0+P1+P2+……+Px=100%。: ?# E; x6 \& A- R( o
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。+ b, @( @7 U* @. e9 K9 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。! i0 B: Z+ \: U. G; a4 \
5 o2 v; T' y7 k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。+ ?0 F4 b' v" `
在任意盘口G下,全场比赛会出现如下3个结果:
! l* ]; M8 S' D8 }1:K>G 即出现我们通常所说的大球。4 ]& V3 w' j) Y2 l2 H
2:K=G 即出现我们通常所说的走盘。4 W+ U% ^( Q# C" ~( X
3:K<G 即出现我们通常所说的小球。$ O6 J8 M- _: q3 B2 z2 m, \4 k
& t+ z) ~4 D0 p6 a, n0 I- g那么在此盘口下投注大球的回报总数额为:% u4 S& |0 W* Q
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
9 m9 O( z7 x5 Y. }" p0 `$ P" N6 nD2:(K=G)={Bo 即走盘退回本金。
3 ]/ B- ], E7 G5 U+ ?6 n) D& L/ fD3:(K<G)={0 即输盘失去本金。, A5 f; Y% C4 e1 z: s9 b7 T
3 J8 B" `' u: \6 o5 P
同理在此盘口下投注小球的回报总数额为:
" W, _. [3 n; b) G4 UX1:(K>G)={0 即输盘失去本金。( J) P# x4 R- y$ y9 k2 d
X2:(K=G)={Bu 即走盘退回本金。
6 @ u3 I% ?5 U' v2 xX3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
/ [% X, [$ Y! c7 p% K; O! j* z0 _. n! ~
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 m6 J9 t% @( O3 ?3 T6 w% E! c6 R1 ~* p3 `; ~" A3 `
1:大小球盘为2.5球(G=2.5) Y; ^; q' V% x% h3 b
$ `9 v( {# A7 q* ?在大小球盘为2.5球时,投注大球的回报总数额为:+ I2 o- Y2 g/ r/ E
K=0 D0=0
$ l0 n. S9 M3 {' k, L" FK=1 D1=0 - [8 h4 f9 H5 O* p
K=2 D2=0
# t9 _/ N! F* VK=3;4;....x D3+= {Bo* O ( X1 V; L. m" n5 w' w4 S! d
5 Y( G# l! s0 j p) S/ U
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)
0 q/ M% X( ?# ~1 g/ F: j2 D& 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。
8 P8 m; e$ [) E ∑D=Bo* O*(1-P0-P1-P2)=Bo9 @- w0 N+ t& ^! V4 J+ U% X
O*(1-P0-P1-P2)=1
: p" ~+ [0 V1 p7 f+ ^ 在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)
1 W7 ?6 Y6 H: Q3 D! U. T 或者表述为 O=1/∑Pn----------(这里n=3;4;……x)( _# v1 q' A. q$ y x; X7 E
. F- b! s$ [' |2 b在大小球盘为2.5球时,投注小球的回报总数额为: x# R- d, w6 G: D& E$ m1 ?
K=0 X0=Bu*U
( N; V0 w }% c5 H5 K/ v5 IK=1 X1=Bu*U # o1 v: \9 X9 ], S4 s
K=2 X2=Bu*U
9 W( E6 A+ [3 W; @, EK=3;4;....x X3+=0: ~8 p) _$ X' C4 p
( k ~2 y: x. {( S投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
' e; e3 x) p! E% r& V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。- g4 V8 A; F' D4 A2 {3 ]
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu$ S; I' N. g4 X; B
U*(P0+P1+P2)=1
, ?5 ?' y% [8 E% M3 d/ h 在此盘口下,小球的赔率为 U=1/(P0+P1+P2)9 f j, q6 ~ W, l6 n. W2 l
, }( n! ?9 G8 P3 y% L2:大小球盘为3球(G=3); j; f! ]/ I3 `, ]+ |9 m3 g* m/ \2 e
0 Z: H. o' ~5 l9 }7 \* @; f在大小球盘为3球时,投注大球的回报总数额为:4 @% x8 R2 [! F4 x
K=0 D0=0
2 T M& @( O; L' O: R( c' Z2 kK=1 D1=0
7 c- ~1 \: t: I+ } h9 ?1 |K=2 D2=0( v {" |; z4 [) g; b
K=3; D3= Bo
( o2 \5 i6 V% v" r2 Z+ l8 BK=4;5;....x D4+= {Bo* O
0 a6 U: z& M1 {9 u4 X) b0 Z* D+ U# j" i1 C9 X- h
投注大球的期望回报总数为:
; o) P9 g8 P& n8 v) F" k1 f$ h$ y∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)
0 H) r/ Z4 P% f' 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。# `' B1 }- y; h
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo* o- V$ ?; ]0 P9 h+ Z( n
P3+ O*(1-P0-P1-P2-P3)=1; |$ x. J* c0 V6 {* [# X
在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
) \8 `( P1 b9 S9 K: v/ @ 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)
9 k. [5 }0 @# {# `8 F7 ^8 h. E- n# d7 |1 Y7 B3 U
在大小球盘为3球时,投注小球的回报总数额为:
, R* x, D& Q9 i/ [% zK=0 X0=Bu*U " w$ _" E z: I( d& R8 P
K=1 X1=Bu*U
7 z. _8 m" a6 W- a) WK=2 X2=Bu*U 3 L# A4 J& M, U, D b6 H
K=3 X3= Bu- ?$ X7 _$ q5 i6 \5 I, M
J=4;5;....x X4+=0$ g' q- a2 ^' M+ p- v
0 g G, I4 w9 C$ K/ 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
+ C) N' ~6 G$ b f! Z6 ^: A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。
' F2 E" T5 K( X7 J# M1 S ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu" ^7 O4 `( O/ u1 H0 D
U*(P0+P1+P2)+P3=1. \% [- Y3 F$ j% q& x1 w
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)
/ S" p: @6 ?1 A/ @1 z$ W/ e+ [" I4 _/ K6 M- n
3:大小球盘为2.5/3球(G=2.5/3)
8 v# f) l* I+ d$ d( K2 P- K a q1 ?# C) L( E7 C
在大小球盘为2.5/3球时,投注大球的回报总数额为:
0 d2 T% ?# f. UK=0 D0=0
3 u1 L2 x" w3 Q5 A5 ?9 E- m1 bK=1 D1=0 ! _: ~) S8 p. m# l2 j e1 Z
K=2 D2=0( [" i7 |1 W ~" k) w, [- D6 o4 B
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)8 ~% v3 Q, w% C- ?; z" e* V* l
K=4;5;....x D4+= {Bo* O
6 \" Q! {& X! x; u0 r. G" i. T( f# s
投注大球的期望回报总数为:% n& |; I* ~7 Q# C9 e. T' ?
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3), M$ L$ `- s- _6 X( P1 m
= P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
, D# M( Q9 }" L7 |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。& x! ]- r3 }' @* g" t. }
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo& S! `% V. {$ [' @. p
P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1
8 v+ z- E6 |7 `& n# q+ m- X O*(1-P0-P1-P2-P3+ P3/2)=1- P3/21 }3 c3 y7 D/ M6 \. E( W4 s: V
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2) ; D. F- O4 u6 k1 N/ l" D& I
: X% ], C5 v& G1 p/ @0 Z8 w3 c
在大小球盘为2.5/3球时,投注小球的回报总数额为:
- F) W+ E8 `2 gK=0 X0=Bu*U
# C9 |& @4 N3 a0 r; A+ ZK=1 X1=Bu*U + V, c' O- L7 A
K=2 X2=Bu*U ' W' {$ D( K0 ?5 q+ o% f' J% F
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)
9 b& U& O, l0 N: ?$ S4 t5 A# H9 EJ=4;5;....x X4+=0
" v9 [. k5 D* g( }* U8 g
5 n* f( Z/ S1 ~" {! R, J% k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
9 C8 Q$ ]: {4 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。5 e& ], }, p% f7 p
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu' R- D! s6 C8 `& N; `& U J
U*(P0+P1+P2)+P3/2=1# X d+ @2 P# q( F
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
F! I: g$ H0 t, H4 d; Q2 Q7 ~" J8 B J1 F) Q
4:大小球盘为3/3.5球(G=3/3.5)
+ E" i; [. Q+ [) ^) T
# @! q# j- B- `7 I3 Z6 o6 m- i' |在大小球盘为3/3.5球时,投注大球的回报总数额为:8 q5 `2 k; [) o
K=0 D0=0
% Y4 K' {4 e9 d9 G5 N J- }K=1 D1=0 % s" @( F. Y `$ Q' f" o. H
K=2 D2=0
# L) s' i' y4 H0 X% L& }7 [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)
9 w7 f" E7 X' r9 G8 {K=4;5;....x D4+= {Bo* O , O, Y$ r9 J; q8 q$ N
: e0 t0 X, e) ^投注大球的期望回报总数为:
0 S$ |( E; r. o7 U) t7 z ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)* ~- M6 ^9 w/ `% ~. I
= P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)
, [# A: v* ]# z9 W, J7 Z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。7 R4 t- ~% o: g/ _! B
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo
( J5 j! h$ Y" N5 c P3/2+ O*(1-P0-P1-P2-P3)=1
- V# i5 F! l0 g7 Z O*(1-P0-P1-P2-P3)=1- P3/23 e3 \8 v/ o4 k8 F2 c) ~
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)
' V. l( g8 R+ }" e 或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)
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8 x& d1 s" j4 \% R) e在大小球盘为3/3.5球时,投注小球的回报总数额为:
" f0 p$ }1 {% I2 AK=0 X0=Bu*U
) T* [. t9 B5 f+ i, X: FK=1 X1=Bu*U 5 a7 `4 ]# J0 g0 m1 r
K=2 X2=Bu*U 2 `4 C* m& F! t0 R
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)
8 Z* O8 x! ~0 i" \, A9 RJ=4;5;....x X4+=0
! u: l' z$ t! Z4 a' Z
- f9 k* j$ W: p1 {8 O投注小球的期望回报总数为:
# ?" Y7 y5 V* W! Q' | ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
( P1 z# N3 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。
$ V4 P$ S6 A+ T9 O7 s. F, O( b ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
7 |+ A/ f+ }% W6 ?& f2 A U*(P0+P1+P2+ P3/2)+P3/2=1! ?: u- A: e, m" E2 B v
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
$ G' b# X+ c; L k$ f4 A! `# x: _
) [3 ~4 H" E6 d; G9 l4 n- f7 j
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.$ [& M% S5 e1 a' x; g
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!- E; c! V* [; S. n% P0 ~3 d
7 F+ L9 o T" e4 E
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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