Swindon boss Alun Rossiter admitted he was “gutted” to miss out on grabbing a result at Belle Vue.
The CFS Filtration Robins went down by just eight points in a tight encounter at the National Speedway Stadium.
After a typical strong start from the home side, the Robins came roaring back into the clash and were just four points down going into the final three heats.
With Jason Doyle and Troy Batchelor in excellent form, hopes were high of getting at least a point if not more.
But the Aces held on to stop Batch and claim a 49-41 win. Team boss Rossiter couldn’t hide his frustration at the end.
He said: “Without Tobiasz (Musielak) I felt we would find it very difficult to get anything but the boys did a great job.
“Everyone really dug in and it’s really disappointing to come away with nothing when we’ve come so close, I’m gutted really.
“I felt hopeful we could get something with Jason and Troy still to come in Heats 13 and 15 but it wasn’t to be.
“I have to look at the positives and the performances of Adam (Ellis) and Dawid (Lampart) were brilliant. The reserves are struggling a bit at the moment. But we could and perhaps should have got something from this in the end.”
An impressive Heat 9 maximum from tactical substitute Doyle and Batchelor narrowed the gap to just four points and suddenly the Robins were back in with a shout.
That was followed by an outstanding ride from Ellis, swapping the lead with Max Fricke before grabbing a vital win. With Wajtknecht taking third over Wells, Swindon were now just two down.
However, Belle Vue refused to lie down and kept Batchelor at bay in the big races to sneak home with an eight-point win.
Belle Vue 49: Max Fricke 11+1, Kenneth Bjerre 9+1, Jaimon Lidsey 7+1, Dimitri Berge 7+1, Dan Bewley 7, Steve Worrall 6, Ricky Wells 2+2.
Swindon 41: Jason Doyle 14+1, Troy Batchelor 11, Adam Ellis 10+1, Dawid Lampart 4+1, Zach Wajtknecht 2, James Shanes 0.