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Win more if the outcome lands within a range

A bookmaker's middle allows you bet on overlapping lines from different bookmakers and win both bets if the result falls within a specific range.

For your filter settings we just found 123 middles.

Of these, 33 middles offer positive expected value.

To see middles with positive expected value and lossless surebets-middles, please choose a plan.

Found 90 middles with Tennis and 31Bet |
| Back to my middles (Auto updates — Shift+P to start them) (Auto updates — Shift+P to pause them)

Examples with low expected value ↓
▼ | Profit Bookmaker ▲▼ Event Market Odds
1.00% / 18.0%
-14.40% / 71.2%
Complaints

 31Bet
Tennis 		31/07
17:30 		Mboko, Victoria – Bouzkova, Marie
WTA - Montreal, Canada 		AH1(+1.5)
1.31
Fortuna (PL)
Tennis 		31/07
17:30 		Mboko V. – Bouzkova M.
WTA - K-WTA Montreal, singiel 		21-2
2.47
+ 1 middle for this event
0.96% / 22.1%
-17.30% / 65.4%
Complaints

 31Bet
Tennis 		31/07
17:30 		Zhu, Lin – Lamens, Suzan
WTA - Montreal, Canada 		AH1(+1.5)
1.76
Piwi247
Tennis 		31/07
01:00 		L Zhu – Lamens
WTA Montreal 2025 		21-2
1.56

$735.71
+ 2 middles for this event
0.93% / 27.5%
-20.86% / 58.3%
Complaints

 31Bet
Tennis 		30/07
17:30 		Mannarino, Adrian – Shelton, Ben
ATP - Toronto, Canada 		AH1(+6.5)
1.27
BoyleSports
Tennis 		30/07
17:30 		Adrian Mannarino – Ben Shelton
ATP - Toronto 		AH2(−4.5)
2.10
+ 2 middles for this event
0.91% / 23.8%
-18.50% / 63.0%
Complaints

 RicoBet (BR)
Tennis 		30/07
16:00 		Andrey Rublev – Hugo Gaston
Canada - ATP Toronto 		AH1(−2.5) 1st set
1.97
31Bet
Tennis 		30/07
16:00 		Rublev, Andrey – Gaston, Hugo
ATP - Toronto, Canada 		AH2(+3.5) 1st set
1.39
+ 13 middles for this event
0.89% / 20.9%
-16.57% / 66.9%
Complaints

 Zenit
Tennis 		30/07
10:05 		Diane Parry – Daria Snigur
WTA. Warsaw. Hard 		Over 18
1.38
31Bet
Tennis 		30/07
10:00 		Parry, Diane – Snigur, Daria
WTA 125K - Warsaw, Poland 		Under 20
2.11
+ 3 middles for this event
0.86% / 14.0%
-11.53% / 77.0%
Complaints

 31Bet
Tennis 		31/07
10:00 		Van de Zandschulp, Botic – Masur, Daniel
Challenger - Hagen, Germany 		AH1(−5.5)
1.74
William Hill
Tennis 		31/07
10:00 		Botic Van De Zandschulp – Daniel Masur
ATP Challenger Tour - Hagen 		AH2(+6.5)
1.80
+ 1 middle for this event
0.81% / 27.9%
-21.20% / 57.6%
Complaints

 31Bet
Tennis 		31/07
01:10 		Carballes Baena, Roberto – Fritz, Taylor
ATP - Toronto, Canada 		AH1(+3.5) 1st set
1.39
FanDuel
Tennis 		31/07
00:10 		Carballes Baena – Fritz
ATP Toronto 2025 		AH2(−2.5) 1st set
1.82
+ 8 middles for this event
0.73% / 21.7%
-17.20% / 65.6%
Complaints

 BookMaker (EU)
Tennis 		31/07
10:00 		Pereira, Tiago – Escoffier, Antoine
ATP CHALLENGER - PORTO 		11-2
1.83
31Bet
Tennis 		31/07
10:00 		Pereira, Tiago – Escoffier, Antoine
Challenger - Porto, Portugal 		AH2(+1.5)
1.51
+ 4 middles for this event
0.71% / 14.9%
-12.38% / 75.2%
Complaints

 Pinnacle
Tennis 		30/07
10:30 		Genaro Alberto Olivieri (Games) – Alex Barrena (Games)
ATP Challenger Liberec - R16 		AH1(+4.5)
1.591
31Bet
Tennis 		30/07
10:10 		Olivieri, Genaro Alberto – Barrena, Alex
Challenger - Liberec, Czech Republic 		AH2(−3)
1.95
+ 3 middles for this event
0.62% / 14.7%
-12.29% / 75.4%
Complaints

 GazzaBet (IT)
Tennis 		30/07
11:00 		Mia Ristic – Nuria Brancaccio
ITF Femminile - Italia (ADJ98280) 		11-2
3.26
31Bet
Tennis 		30/07
10:30 		Ristic, Mia – Brancaccio, N
ITF Women - ITF W75 Cordenons 		AH2(+1.5)
1.20
+ 2 middles for this event
0.59% / 19.4%
-15.74% / 68.5%
Complaints

 31Bet
Tennis 		30/07
10:00 		Balsekar, Aditya – DeSousa, Julian
ITF Men - ITF M25 Brazzaville 		11-2
1.60
Pin-up
Tennis 		30/07
10:00 		Aditya Vishal Balsekar – Julian DeSousa
ITF - ITF 25. Brazzaville. Clay. Congo 		AH2(+1.5)
1.78
0.49% / 21.9%
-17.58% / 64.9%
Complaints

 BetVictor
Tennis 		30/07
10:10 		Federico Coria – Daniel Michalski
Challenger - Challenger - Liberec Mens 		11-2
1.70
31Bet
Tennis 		30/07
10:10 		Coria, Federico – Michalski, Daniel
Challenger - Liberec, Czech Republic 		AH2(+1.5)
1.60
0.44% / 17.3%
-14.37% / 71.3%
Complaints

 31Bet
Tennis 		30/07
11:00 		Rocha, Henrique – Coulibaly, Eliakim
Challenger - Porto, Portugal 		AH1(−3)
1.78
10Bet (UK)
Tennis 		30/07
11:00 		Henrique Rocha – Eliakim Coulibaly
Challenger - Porto - Singles 		AH2(+4.5)
1.65
+ 4 middles for this event
0.44% / 17.3%
-14.34% / 71.3%
Complaints

 TerryBet (IT)
Tennis 		30/07
13:00 		Carolina Troiano – Magdalena Smekalova
ITF Femminile - Slovenia 		11-2
1.56
31Bet
Tennis 		30/07
13:00 		Troiano, Carolina – Smekalova, M
ITF Women - ITF W15 Rogaska Slatina 		AH2(+1.5)
1.90
+ 2 middles for this event
0.41% / 21.0%
-17.01% / 66.0%
Complaints

 31Bet
Tennis 		30/07
12:20 		Hontama, Mai – Jimenez Kasintseva, Victoria
WTA 125K - Warsaw, Poland 		Over 21.5
1.98
1xBet (IT)
Tennis 		30/07
12:30 		Hontama, Mai – Jimenez Kasintseva, Victoria
WTA 125K - WTA 125K Warsaw, Poland Women Singles 		Under 25.5
1.43
+ 1 middle for this event
0.37% / 22.7%
-18.20% / 63.6%
Complaints

 Fortuna (SK)
Tennis 		30/07
18:40 		Diallo G. – Gigante M.
M-ATP Toronto, singles 		AH1(−2.5) 1st set
2.57
31Bet
Tennis 		30/07
18:40 		Diallo, Gabriel – Gigante, Matteo
ATP - Toronto, Canada 		AH2(+3.5) 1st set
1.20
0.34% / 22.2%
-17.88% / 64.2%
Complaints

 EpicBet
Tennis 		30/07
17:30 		Yunchaokete Bu – Lorenzo Sonego
Canada - ATP Toronto 		Over 12.5 2nd participant
2.05
31Bet
Tennis 		30/07
17:30 		Bu, Yunchaokete – Sonego, Lorenzo
ATP - Toronto, Canada 		Under 14 2nd participant
1.37
+ 4 middles for this event
0.28% / 53.6%
-34.72% / 30.6%
Complaints

 Stoiximan (GR)
Tennis 		30/07
17:30 		Hanyu Guo – Iga Swiatek
WTA - Montreal (W) 		Over 13.5
1.15
31Bet
Tennis 		30/07
17:30 		Guo, Hanyu – Swiatek, Iga
WTA - Montreal, Canada 		Under 17
1.51
+ 7 middles for this event
0.27% / 21.2%
-17.30% / 65.4%
Complaints

 31Bet
Tennis 		30/07
15:30 		Mattioli, F – Larraya Guidi, Sol Ailin
ITF Women - ITF W35 Pergamino 		Over 8.5 1st set
1.80
Betano (BR)
Tennis 		30/07
15:30 		Francesca Mattioli – Sol Ailin Larraya Guidi
ITF Women - Argentina (W) 		Under 9.5 1st set
1.53
+ 4 middles for this event
0.22% / 20.2%
-16.60% / 66.8%
Complaints

 Piwi247
Tennis 		30/07
12:10 		Matuszewski/Romios – Ingildsen/Pereira
Porto Challenger 2025 (ADJ98280) 		21-2 - lay
1.83

$34.47
2.20
31Bet
Tennis 		30/07
12:10 		Romios M.C. / Matuszewski P. – Ingildsen J / Pereira T
Challenger - Porto, Portugal Double 		AH2(+1.5)
1.53
+ 1 middle for this event
0.13% / 31.8%
-24.04% / 51.9%
Complaints

 LsBet
Tennis 		30/07
15:00 		Ryuki Matsuda – Zachary Svajda
United States - ATP Challenger Tour - Lexington 		AH1(+2.5) 1st set
2.10
31Bet
Tennis 		30/07
15:00 		Matsuda, Ryuki – Svajda, Zachary
Challenger - Lexington, USA 		21-2 1st set
1.19
+ 2 middles for this event
0.12% / 18.6%
-15.60% / 68.8%
Complaints

 31Bet
Tennis 		30/07
12:00 		Otzipka, Jana – Ebeling Koning, Loes
ITF Women - ITF W35 Knokke-Heist 		AH1(+1.5)
2.05
Bodog (EU)
Tennis 		30/07
12:00 		Jana Otzipka – Loes Ebeling Koning
ITF W35 Knokke-Heist 		21-2
1.44
+ 1 middle for this event
0.09% / 38.0%
-27.48% / 45.0%
Complaints

 TeApuesto (PE)
Tennis 		30/07
12:00 		Barendse, Laurie – Krymlova, Marie
UTR Women - UTR PTT Monchengladbach Women 01 		11-2 1st set
1.30
31Bet
Tennis 		30/07
12:00 		Barendse, Laurie – Krymlova, Marie
UTR Women - UTR PTT Monchengladbach Women 01, Group D 		AH2(+3.5) 1st set
1.64
0.08% / 20.2%
-16.72% / 66.6%
Complaints

 Tipsport (CZ)
Tennis 		30/07
11:00 		Lalami Laaroussi Younes – Pleshivtsev Egor
ITF Kursumlijska Banja 016 - antuka, Tenis muži - dvouhra SINGLES 		11-2
1.55
31Bet
Tennis 		30/07
11:00 		Lalami Laaroussi, Y – Pleshivtsev, Egor
ITF Men - ITF M15 Kursumlijska Banja 		AH2(+1.5)
1.80
0.00% / 16.2%
-13.91% / 72.2%
Complaints

 31Bet
Tennis 		30/07
23:10 		Comesana, Francisco – De Minaur, Alex
ATP - Toronto, Canada 		Over 19
1.65
Maxbet (RS)
Tennis 		30/07
23:30 		Comesana F. – De Minaur A.
ATP Toronto 		Under 20.5
1.80

See also: surebets with 31Bet or valuebets with 31Bet.

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