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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。# x" p) O# H0 A6 _6 p0 r# n% a
我们先引入下列符号:
8 X# M8 E) i/ i2 zPn(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。+ s( ]" H$ q P1 L% W
即:P0=全场进0球的概率;P1=全场进1球的概率;……。
0 T/ m1 x/ ?7 E6 A那么 ∑Pn=P0+P1+P2+……+Px=100%。) _1 v5 E5 b y/ t+ M
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。5 ?3 Z1 R. X$ d# B9 a' D5 e
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。( h3 D( Z( w! y; x9 x0 [$ P
: O4 k. Y. ~: 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。8 f- ~% U) g, W6 R ~; J8 o# F( z
在任意盘口G下,全场比赛会出现如下3个结果:
1 Y. o/ B0 \* ^9 ?1:K>G 即出现我们通常所说的大球。
" W- Z, y3 f$ z& W2:K=G 即出现我们通常所说的走盘。 b! | u2 Y4 Z
3:K<G 即出现我们通常所说的小球。2 z! Z4 w/ r5 R$ D7 ?0 F
( y' A @/ b% }2 n4 }, _* o那么在此盘口下投注大球的回报总数额为:$ H& }! f/ b3 c8 {! z; E
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。9 @5 J5 J' Z! _, l$ J8 Q% H! ?8 g
D2:(K=G)={Bo 即走盘退回本金。
3 A. Y' v# G, x( \; N6 @9 w! rD3:(K<G)={0 即输盘失去本金。3 @ K1 ~6 R, G3 F
; X$ [ n5 m( x同理在此盘口下投注小球的回报总数额为:
, h+ Q4 R# n0 b7 g6 R7 P8 IX1:(K>G)={0 即输盘失去本金。6 @5 g, f1 D. Q( p( P' b: @
X2:(K=G)={Bu 即走盘退回本金。
" Q' ?: m( o* t* pX3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
4 j# F3 a2 p3 f: P9 h9 |3 Y3 [0 R& y- K+ w- f. \5 h) F/ 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。
# H, t" ~8 f9 s" L! O& A9 s/ T4 h" Y! f/ p" W: p
1:大小球盘为2.5球(G=2.5)+ t3 f' v' ?# G
/ i; \/ V* Q% V- o' c. W* x# _* H在大小球盘为2.5球时,投注大球的回报总数额为:! P/ u+ ?5 G# R. ~& p, o* S& A
K=0 D0=0 : K" e0 L+ E' |9 l
K=1 D1=0 & Y# H7 T" I9 ?4 @# ^
K=2 D2=0
+ T4 g- ~+ D" Y% UK=3;4;....x D3+= {Bo* O 3 Q* n2 A/ P% ]) i$ N0 C
6 G( L5 m2 T* f- y. `- B; n9 @" c, 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)
2 g; J; t$ n) f1 t4 r8 _+ 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 x2 y7 i8 M( R1 _8 ~. j9 j+ i
∑D=Bo* O*(1-P0-P1-P2)=Bo
0 x9 \, \2 y" Q2 }/ |. ]) m4 X! m O*(1-P0-P1-P2)=1, o9 p& |! l. @4 H
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)* `" d4 f9 y1 X: |; o
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)
& y: ~8 A; x9 n1 ]- F. l6 f' r1 e! Q, Z2 j- D% T, s" H
在大小球盘为2.5球时,投注小球的回报总数额为:
/ O5 X F+ h q% r+ Q/ s+ U0 z. SK=0 X0=Bu*U
* @, U$ Q4 ^( o g2 qK=1 X1=Bu*U
" O9 x4 M1 L* o& GK=2 X2=Bu*U 7 U' n. a2 O9 c, g
K=3;4;....x X3+=0
5 U* G( c9 K9 p' G& d k, x) m* _" n( ]' A/ H* Y) C
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U5 L b2 b' `* y! S( 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。6 n6 R% F' m+ ~( ?) v
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu
4 x( r) ^- Q l/ I: k& Y0 N! q5 ~, k, U U*(P0+P1+P2)=1( j& K* @( g$ r7 r6 o j: h( p
在此盘口下,小球的赔率为 U=1/(P0+P1+P2)3 Y$ ~8 T6 E9 L
% i# `# D0 N( {2:大小球盘为3球(G=3)9 `2 f5 m* c' m9 |# I9 }0 _. W
) r8 B9 g( G2 g在大小球盘为3球时,投注大球的回报总数额为:
, ^* Q, ]) r) _# H+ E) yK=0 D0=0
4 ~; e: Q5 n& F, {! d0 MK=1 D1=0 % ?2 K0 |8 ~6 E4 |
K=2 D2=03 E' {: g/ {( ` L0 \
K=3; D3= Bo0 O1 D; k6 r9 I2 j3 ~
K=4;5;....x D4+= {Bo* O 4 u6 C' T+ v& K! R1 ~. Z
. u5 Z0 H, w( v7 A" a, `
投注大球的期望回报总数为:5 h$ Y/ V9 u' V) C4 D0 y! D8 c9 D
∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)+ v1 j6 X: l u( Y9 h8 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。$ u3 b: r, m" V0 {* ~
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo
$ v9 o$ j9 j( G P3+ O*(1-P0-P1-P2-P3)=19 U7 |3 C6 U, k/ h; v- g7 u
在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
) [4 m6 \9 D# a' d 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)
1 g' }( |! l% G2 I- V
+ ?0 U1 t4 U. D9 y7 w: q% M; Z: v在大小球盘为3球时,投注小球的回报总数额为:% z, u. R8 f. r9 _2 H
K=0 X0=Bu*U O6 l) k* b0 }! x( ^
K=1 X1=Bu*U
0 ^$ S( o. W4 }$ s1 m/ hK=2 X2=Bu*U
# Q& S- h4 i7 {3 v: Z9 G1 s" eK=3 X3= Bu/ \: X; D) Z% M' X r, ?5 V
J=4;5;....x X4+=0
; `% |6 w' T3 W3 k. G9 a
) @" P3 z0 ]" \1 F& a投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
6 E0 w3 A y: E. {" M- 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。" U6 }6 j7 l: d4 L! _0 L1 a
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu' I. `" V' x" n6 [/ O
U*(P0+P1+P2)+P3=1
# m/ D- f ]: d# A: p8 {" u% W 在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)1 ?8 U8 M; x' X5 r3 [, Y
" x0 M0 H* e/ H3:大小球盘为2.5/3球(G=2.5/3)5 }, N3 S$ [7 ?9 X/ t( Q9 X8 C+ O
$ `/ [ N; K7 \- b0 a3 ?" {
在大小球盘为2.5/3球时,投注大球的回报总数额为:
( R2 D: U! x4 ] |0 Y. eK=0 D0=0
/ B( i, Z/ Z0 A, E. M5 N% vK=1 D1=0 5 B8 X$ M) @1 f/ D4 u
K=2 D2=0
% w/ ]. V8 V) p2 B% `$ y" Z8 r$ I5 u; DK=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)
5 [0 ]: v+ H3 F$ J! t3 {K=4;5;....x D4+= {Bo* O
: X, O! ^ \# I5 l* W& j
* f( k) X G" g5 ^- ?- Q, W投注大球的期望回报总数为:: Z* A! y' W4 h) `) v) ~' v4 g; a
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)5 W5 o4 ], D8 Z+ g3 P' |! r1 `% f
= P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
3 L, O6 D) B' g6 G: j0 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。% Q3 A- c i4 y# `. D# n9 {5 {9 N' D' q
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
+ G2 t) M1 t* v$ h$ k% ?: [* g P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1
3 C2 i K4 I9 H% p' b O*(1-P0-P1-P2-P3+ P3/2)=1- P3/22 h- o+ \9 V! {1 v+ m& b
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2) ' g `0 x7 G+ q
" H/ W1 W- Q8 R1 [9 m在大小球盘为2.5/3球时,投注小球的回报总数额为:
' {& P+ `+ z3 u# y J& y& CK=0 X0=Bu*U " u6 v' k* c4 J5 G0 i& G
K=1 X1=Bu*U
4 T" Q5 I7 S+ J6 x! TK=2 X2=Bu*U # u; Z8 v' A; T+ [
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)
+ a; E" f3 ?2 m% sJ=4;5;....x X4+=0
9 R$ x" {) q2 F0 w; m. i* }2 g0 t, h; ?
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
* e+ _4 n* y: d$ F5 F5 s' Z8 z4 ^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。% y! \- d* V& ^/ |
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu" a! ~/ x8 |% |0 n7 e
U*(P0+P1+P2)+P3/2=1
9 v5 F, C9 t+ `) N$ i 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)% W. c$ E' m* m5 h L3 M8 x
+ Z6 i" r9 O9 Q+ [, k
4:大小球盘为3/3.5球(G=3/3.5)
* _1 }# c- Q5 ~$ j. X* D) O+ ^3 l6 i* [; @
在大小球盘为3/3.5球时,投注大球的回报总数额为:$ q8 c0 C% S) f) T5 d! i
K=0 D0=0 7 p5 S$ W- d* |& ~1 |- t
K=1 D1=0 & Z4 j2 S, v- k7 o. L) l
K=2 D2=01 E" E; Y+ N6 u7 { W" N' M
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)
- Q# b/ w7 K. T' T, Q0 tK=4;5;....x D4+= {Bo* O 1 b Y+ V7 Z9 A1 C
4 ~& y+ D4 M5 h8 N9 h5 o. r投注大球的期望回报总数为:
- [# j: \8 x' i3 {0 U ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
: ?/ h$ l9 P. U6 h' J = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)
, d. d: F1 n: D, p5 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。
. _4 w$ Q! M* Z9 ^% N2 ~ ∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo- O4 D( f& I$ N2 L H% N
P3/2+ O*(1-P0-P1-P2-P3)=1; d* \3 |2 y0 j2 a/ b0 e3 p+ j
O*(1-P0-P1-P2-P3)=1- P3/2
6 k: ?/ ^% R- m- V6 v3 ^2 {0 A. C 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)& P) w( d6 [! @% o3 I
或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)$ e# \3 g' ] ?, e5 g+ K3 x
$ N4 r( S8 Q( F/ G: S. d' |& w在大小球盘为3/3.5球时,投注小球的回报总数额为:" j m) I# Z* B$ A9 G% |: P
K=0 X0=Bu*U
) A+ q5 F1 t& m% q' rK=1 X1=Bu*U 8 P; u# Q1 z6 _$ S& ~( U8 c
K=2 X2=Bu*U
2 q% m4 L5 O$ H8 tK=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)
: A [( g: M& o, ]J=4;5;....x X4+=0
$ q" {$ C h! C& n- n7 ]/ m) K* B, r' R' _, G& r) G1 e
投注小球的期望回报总数为:9 P7 j, j- a# `) b5 p) l
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
% j2 V0 Z. H4 I$ m# F% 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。8 l7 J$ Y9 E2 Y* M/ r
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu5 m' d9 c7 v7 t
U*(P0+P1+P2+ P3/2)+P3/2=1. X$ E8 J7 W* q9 |! V
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)6 I9 j' n6 i1 k0 C* j8 x, D; d
& O6 ~ M$ I+ {3 U2 t& k. f
+ u. d Z6 r" y2 k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.) R. f, g4 k: W7 t3 d9 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!' j& S( |1 H% L6 t9 d. t, N! i
/ O0 H* @" [- kP0 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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