For the first time in Marussia's four seasons in the sport the team clambered into the top 10, representing a milestone achievement.
Courtesy of Jules Bianchi's 13th position in the second grand prix of the season, that was enough to see them ahead of Caterham whose best result was 14th from Charles Pic, at both Sepang and in Korea.
After an agonising final race of the season in Brazil on Sunday, as it all went wrong for the team the previous season at Interlagos, the relief was evident on Lowdon's face.
"The main thing for us is progress," said Lowdon, speaking to Press Association Sport.
"In the junior formula we were accustomed to winning races and championships, so it was odd to celebrate a 17th-place finish (from Bianchi in Brazil).
"But it represents a step forward for us, both in sporting terms and commercially as well.
"It's a reward for all the hard work that has gone into the team from everyone at the factory in Banbury, those at the track, the people who support us and the drivers.
"It's really nice for people to be able to see that progress."
Whilst F1's complicated prize-money regulations means there will be no immediate financial reward for this season, a repeat next year will provide a significant injection in cash.
"Let us do it one step at a time," added Lowdon with a smile.
"Obviously it's important for us to keep pushing. We all know what Formula One is like. It's a relentless business.
"But hopefully this is a positive step in our build up to the 2014 season."
There were rumours sweeping the Interlagos paddock that there would be an announcement from Marussia this week regarding their future.
The suggestion being the team would either confirm their exit from F1, or a merger with another marque.
Lowdon confirmed to being aware of the gossip, but was quick to dismiss it as he said: "The 2014 car is very much on target.
"We've demonstrated we've a sensible control over costs, which is really important, and whilst all the teams want more revenue, hopefully this (10th place) is a step in the right direction.
"We're excited about the changes for next year, and hopefully it will provide some opportunities."