The team were, until Friday, holding the top spot in the six-team league, having posted six points from three wins and one loss in four outings.
They however had opened their campaign in the showpiece on a wrong foot, suffering a 17-run loss to Simba Heroes on April 24.
Chui Riders later regrouped to pick their first win, wallopping Rhino Challengers by eight wickets.
Chui Riders boosted their pursuit of the showdown's trophy with nine-wicket drubbing of Buffalo Gladiators on April 30.
Buffalo Gladiators are hot on the league leaders' heels, holding the second spot with two wins and one loss in four games which have seen them notch five points.
The team's hopes of knocking off the top spot were thwarted on April 30, given the former's clash against Rhino Challengers was abandoned because of rain.
Rhino Challengers, Simba Heroes and Twiga Masters are placed third, fourth and fifth respectively.
Much as Rhino Challengers have as well recorded two wins and a loss, they have been positioned third because of their inferior net run rate.
Rhino Challengers have 0.82 in net run rate, whereas Buffalo Gladiators have 1.02 in net run rate.
Bottom-placed Tembo Rangers have no win in two games they have taken part in, notching -2.8045 in net run rate, the worst so far.
Tembo Rangers' opening match which saw them confront Buffalo Gladiators, saw the former suffer 38-run loss.
Rhino Challengers prolonged Tembo Rangers' losing streak on Wednesday, recording eight-wicket win over the latter.
Chui Riders were presented with an opportunity to widen their points' margin with their closest challengers, given they were set to play lowly Tembo Rangers on May 1.
Buffalo Gladiators were expected to take on Twiga Masters later in the day.
Simba Heroes were set to confront Tembo Rangers in the group stage's last fixture yesterday, to be followed by the first semi-final, known as 'Qualifier 1'.
The 'Qualifier 1' brought together sides, which ended first and second after the round robin stage's matches.
The tie's winners will book a place in the tournament's final, slated for tomorrow.
A play off tie, known as 'Eliminator', bringing together sides which ended third and fourth, is scheduled for this morning.
The 'Eliminator's winners will later take on a a team, which lost the 'Qualifier 1', in what is regarded as second semi-final.
The 10-over formatted showpiece, organized by Tanzania Cricket Association (TCA), is expected to climax tomorrow.
The tournament is organized in memory of Tanzania's fifth term President, the late John Pombe Magufuli, with all matches taking place at Leaders Club's venue.
Six sides, namely Rhino Challengers, Buffalo Gladiators, Tembo Rangers, Chui Riders, Simba Heroes and Twiga Masters are participating in the showdown.
The Tanzania T10 League's sponsors, TCA information officer Atif Salim stated, are G1 Security Group Limited, KFC, Sayona Drinks Ltd, Pepsi and Hitech Sai Health Care Centre.