The pair has gone neck and neck since January and Fitzsimmons' four-win lead -courtesy of two trebles in November – with just two meetings to go looks significant.
But with $1 million and bragging rights up for grabs in the Group 1 Singapore Gold Cup (2000m) on Saturday, it is all bets off in the trainers' championship and all chips in on adding one of their names to the honour board of the iconic feature race.
They saddle a big team of seven horses between them in this year's edition, as opposed to previously when Logan only had one runner (Minister who finished 11th in 2021) in the Gold Cup and Fitzsimmons had none (even if he was the assistant-trainer to Cliff Brown who won it with Gilt Complex in 2017).
This time, both of them have serious winning hopes in the big race and they have left no stone unturned for the Group 1 success.
Fitzsimmons has the bigger hand – Relentless, Trumpy, Mr Black Back, Cyclone and Emergency Acceptor no.1, In All His Glory – and the red-hot Australian handler cannot wait for Saturday.
"Really excited about this week," said Fitzsimmons on Thursday.
"We have a lot of owners here this week and my brother is here too, so there is a real buzz around the track and it will only get bigger as we get closer to Saturday.
"I've been here (Kranji) for 15 years and this (Gold Cup) and the (Singapore) Derby are the two races we all want to win.
"It's been a long plan to get as many runners as I could into this race. There have been a few setbacks, so to have four in the final field is a big thrill."
Of the four confirmed runners, Mr Black Back and Cyclone only landed in Singapore from Australia in July and August respectively and Trumpy has only been in the Fitzsimmons' stable since August.
"It's been tight, that's for sure," explained Fitzsimmons.
"Mr Black Back couldn't have one setback. He was rushed to the races and then had to win the two races we set for him to hopefully get a start. Lucky for us, he did win both.
"If he slipped up, he doesn't get a run. But he's in the race and looks to have a good chance given his form, his draw (gate two) and (visiting jockey) Craig Williams can't hurt.
"Cyclone was in the same boat as Mr Black Back with the tight timeline and nothing went right for him at his last start (finished eighth behind Minister in Class 2 over 1600m on November 5).
"But you can put a line through that run as he's a class horse and he could show up in this race on ability alone. Whatever he does on Saturday, he will be a big player next year.
"Trumpy is the smokey! I've only had him for three months but this has always been his race. He looks incredible, loves the wet and 2000m. I wouldn't leave him out of any quartets."
The old hand in the Fitzsimmons' camp is the Arexevan-Relentless Stable-owned Relentless who has been set for the race for at least 18 months.
"He's (Relentless ) been up for a long time but we set him for the Derby and the Gold Cup a long time ago," he said.
"He didn't quite get the Derby win – he was a bit stiff (second to Lim's Kosciuszko) – but he has come through the Queen Elizabeth (II Cup) really well and his trials have been very good.
"The barrier (12) is a bit of a blow but he's used to that – has he ever drawn a good gate? And I thought his gallop on Tuesday was as good as I have seen from him. He's good to go."
Of the trainers' premiership, it is definitely on the backburner for Fitzsimmons this week but something he would love to win.
"I'd imagine it's in the back of both of our minds this week," he said.
"To be honest, it was only a few weeks ago that I actually thought I'm in with a shot. It's been great. Donna keeps our stable striving to do better and I'm sure it's the same with her lot."
Logan has not given up on the 2022 trainer's gong but has her eye well and truly on the big prize on Saturday.
"It's a million-dollar race and a big part of history," said Logan from the Karaka Ready To Run Sale in New Zealand on Thursday.
"Yes, it's all attention on the Gold Cup on Saturday and absolutely rapt to have two live chances in the biggest race of the year."
The two live chances she was referring to are last-start winner Minister and the highly touted stayer Super Impact, who comes off a torrid unplaced run in the same Class 2 race over the mile on November 5.
Just like her friendly rival in the trainers' premiership, Logan suggests to put a line through that poor run.
"It was an awfully run race," explained the only female trainer at Kranji.
"It (the race) was a train wreck from the start. My horse (Super Impact) was knocked over from pillar to post and came back with cuts on his legs. A real roughhouse, which was unfortunate as it was so close to a big race."
Super Impact even trotted up lame the morning after the race but Logan assured the cuts were more superficial than substantial.
"Any cuts in the tropics swell up a bit so he presented lame – we expected that - but he was right as rain not long after and passed the vet check.
"It (the race) was not ideal but we get on with the job and he is ready to go.
"He's a quality stayer, gets (jockey) Michael Dee and has no weight from a good gate (seven). He's a serious chance in my opinion in what will be a true run race."
Of Minister, who finished second to Big Hearted in the 2020 Singapore Gold Cup when under the care of ex-Kranji trainer Lee Freedman, Logan thinks unheralded jockey Matthew Kellady could be the key to his success.
"He's (Minister) a real tricky ride and Matthew is good with troublesome horses, that's why we put him on," she continued.
"In fact, we could have gotten an international jockey – James McDonald was mentioned – but the owners were keen to keep Matthew on as he is getting the best out of this horse, which he showed at his last start with the win.
"It's wide open this year on paper and a good spread of weights, so Minister had to be in as a chance.
"He's a proven Group 1 winner (2021 Kranji Mile), has a good draw (gate six) and as you saw in the QEII (Cup), he will be fighting to the end."
Of the battle with Fitzsimmons for the leading trainer award, Logan was happy regardless of the final result.
"The competition has been great for racing in Singapore but Tim and I are the first to congratulate each other after a win," she said.
"I'm competitive and would love to win it but at the end of the day we want a 'cheque book not a scrap book', so I tell my apprentices that if they can get a win with Tim, no one is happier than me."