Andrew Hall said that his declaration on the final day against Leicestershire was timed just right.
The County left themsleves 88 overs to bowl out the Foxes who were set a difficult 353 to win but came up short as the visitors closed with two wickets in hand on 227-8.
And Hall pointed to recent history as playing a key factor in his decision with Glamorgan successfully chasing 350 to win at the County Ground last month.
He said: “We played here against the side at the bottom (Glamorgan) and we set them 350 and they got there so you have to look at the history of what’s gone.
“They’ve got a couple of lads who are in form and we thought about how many overs we’d need but if you’re not going to bowl them out in 90 overs then 95 might not make that much difference.
“If we were going to do anything different we could have had three overs at them last night but that would’veleft them 300 in just over a day which would have been just a bit too close.”
But despite the disappointment of failing to record a victory that would’ve out them to within two points of the promotion places, Hall was happy with the effort of his charges.
He added: “It was a good wicket, it stayed too good.
“It’s just one of those, the boys played exceptionally well. We played unbelievably good cricket for four days and fought all the way to the end and I’m really, really happy with the way things are going.
“It’s just a pity that we can’t quite get over the line. A couple of wins in the back end (of the season) will put us right in there and today was an ideal chance to get one of those.
“Their guys (Shiv Thakor and Claudse Henderson) batted nicely.
“We had a couple of good appeals that could’ve gone our way but that’s the way the game goes.
“But they got stuck in and the wicket just didn’t have that kick that you sometimes expect.”