The final week of March 2018 marks the first year since hedge fund manager and poker player Bill Perkins challenged the Staples brothers Jaime and Matt to a prop bet - that both brothers need to get within 1 pound bodyweight of each other in one year in order to win $150,000. If they lose, they only have to shell out $3,000.
The bet was hatched during a week of poker streaming on Bill Perkin's ‘Streamboat' in the Bahamas in March 2017. Perkins gave the brothers odds of 50:1 - they win $150,000, or they lose just $3,000 - not a bad deal to most people actually.
Their initial weigh in was made 6 days after the bet, in which Jamie's weight was at 310 lbs (140 kg) whereas Matt was only 135 lbs (60 kg).
There were many doubters who believed they wouldn't be able to pull it off, but as the days go by and thanks to Jaime's efforts in getting fit (while his brother Matt on the other hand tries to up his in order to meet his brother's weight halfway), victory and a sweet $150,000 paycheck is now in sight.
On February 2, 2018, Jaime hit the 100 lb weight loss goal and on Twitter he posted a before and after photo of him:

To make sure that their home stretch of "Ultimate Sweat" is performed perfectly, they enlisted the help of their coach Mike Vacanti.
Jaime made good use of Vacanti's arrival as another chance to drop a few more pounds by walking the 19-km distance from his apartment in Malta to the airport with his other brother Chris.
Coach Vacanti is definitely pushing the heavier brother hard as Jaime successfully lost another 5 lbs in the past couple of days with the main plan being that Jaime must be the one to meet his younger brother Matt's current weight of 187 lbs.
It seems that instead of the excess weight that once burdened him, it is STRESS that is now weighing Jaime down. The pressure is really getting to Jaime and is evident on his recent Instagram photo.

The official weigh-in shall be streamed live on Twitch.tv.
Source:
https://www.highstakesdb.com/8569-jaime-staples-brother-matt-just-8lbs-apart-as-150000-prop-bet-nears-conclusion.aspx
https://twitter.com/jaimestaples/status/959407155077091328/photo/1