Tezos WNO 19: Duarte vs Meregali, presented by Fat Tire, kicks off tomorrow night at the Palmer Events Center and speculation is running wild about who will win in the 10 grappling super fights. Since the betting lines were originally released last week by BetOnline.AG, money has been coming in and the odds have shifted.

If you are new to gambling, the numbers here are units you have to bet to win back a certain amount. A negative number is the favorite, or the more likely outcome. A negative figure indicates the amount you would need to bet in order to win back $100.

For example, if you took Ffion Davies (-500) to win in the co-main event, you’d need to bet $500 to win $100. The positive number indicates the underdog, or less favored outcome. For example, a $100 bet on Jasmine Rocha (+375) would win you $375 if she gets her hand raised in any way.

What stands out is how the main event has evened up. After originally beginning as a mild underdog, Nicholas Meregali and Kaynan are now both considered -115 to win the main event. The co-main and lightweight title odds have stayed mostly intact, with only some mild over/under shifts. The biggest change on the card is in the prelims, where Achilles Rocha and JB Bechloft have swapped as favorite/underdog.

WNO 19 Main Event

Kaynan Duarte -115 vs Nicholas Meregali -115

• Over 10min -350
• Under 10min +275
  • The odds have evened up, Nicholas moves from a +100 to a -130. The under also rose from +240 to +275.

WNO 19 Main Card

Ffion Davies -500 vs Jasmine Rocha +375

• Over 10min -200
• Under 10min +160
  • Only a mild change, the under moves from +150 to +160

Dante Leon -200 vs Ethan Crelinsten +160

• Over 10min -185
• Under 10min +155
  • Ethan moves from +170 to +160, and the under rises from +140 to +155.

Felipe Pena -800 vs Haisam Rida +550

• Over 10min +140
• Under 10min -170
  • Pena drops from -1000 to -800, Haisam also drops from +500 to +550. The over goes from +300 to +140 and the under goes from -400 to -170.

Nicky Ryan -800 vs Rene Sousa +550

• Over 10min +120
• Under 10min -150
  • Rene goes from a +450 underdog to a +550 underdog, and the over rises five points from +115 to +120.

Andrew Tackett -550 vs Troy Russell +400

• Over 10min +240
• Under 10min -300
  • Andrew rises from a -400 favorite to -550, Troy drops from +300 to +400.

WNO 19 Undercard

Sebastian Rodriguez -150 vs Oliver Taza +120

• Over 10min -350
• Under 10min +240
  • This late replacement match now features Sebastian as the slight favorite over Oliver Taza

Ben Eddy -125 vs Carlos Henrique -105

• Over 10min +200
• Under 10min -260
  • Ben drops from -150 to -125 and Carlos goes from +120 to a -105. The over goes from +150 to +200 and the under drops from -200 to -260.

JB Bechtloff +185 vs Achilles Rocha -225

• Over 10min -200
• Under 10min +160
  • This line has totally shifted, with Achilles going from +130 to -225. JB started as a -160 and is now +185.

Helena Crevar -1200 vs Healy Dayan +750

• Over 10min +250
• Under 10min -325
  • Helena shifts from -1000 to -1200, while Healy rises from +500 to +750.