Chiefs captain Craig Clarke admitted that their one point Super Rugby victory over the Western Force was disappointing.
The Chiefs were outscored by two tries to one and had to rely on penalties to win the match 22-21.
The Force scored the opening try of the match by Pat Dellit in the second minute of the match.
The Chiefs however fought their way back into the match and led 19-11 by half time.
The ever-improving Force never gave up and won the second half 3-10 and pushed the current champions until the finish.
"It's a win but pretty frustrating," Chiefs captain Craig Clarke said.
"We made a few errors and I know it's wet but we're probably pretty disappointed.
"The conditions were a bit difficult. The ball's a bit wet but it's not the worst conditions you could play in. "
"Obviously, it's still not an 80-minute performance from us."
The Chiefs lost Super Rugby's leading point scorer Gareth Anscombe for six weeks in training before the match on Thursday and have matches against the Hurricanes and the Crusaders before the bye and the June break.
Meanwhile Western Force Matt Hodgson said that he was pleased with his team's second half performance but admitted they let the Chiefs run away in the first half.
"The second half was good for us," captain Matt Hodgson said.
"We let them get away to a good start with a lot of stupid penalties in our own half and they kicked away to a good lead.
"We're a team that has a good system in place and when we stick to it we get results. "
"We did that in the second half."