Southport manager Liam Watson says his players' fitness levels have impressed him this season.
Port are challenging for the Blue Square Bet Premier play-offs, having avoided relegation last season.
The Sandgrounders beat Ebbsfleet 2-1 on Saturday with a late Tony Gray penalty at Stonebridge Road.
"Although we're part-time, I haven't seen a team that is better than us in terms of fitness," Watson told BBC Radio Merseyside.
"It's a credit not only to the players, but also the coaching staff. It's no surprise we do score so many last minute goals.
"No-one would have said at the beginning of the season that in March we'd be fourth in the Conference with a realistic chance of the play-offs.
"If you get in the play-offs you have a one in four chance of getting back into the Football League. Southport were replaced in the league by Wigan, who are now a Premier League club.
"But it's been a long time to be in a position where we're challenging to get back in the League."