Tonbridge still need a point to secure their Blue Square Bet South status after a 4-1 defeat at Eastleigh on Saturday.
Angels, who host Eastbourne Borough on Tuesday, took the lead at in-form Eastleigh when Mikel Suarez finished a cross on 24 minutes.
The hosts equalised through Craig McAllister in first-half injury-time after Angels failed to clear a corner.
McAllister put Eastleigh in front seven minutes into the second half.
Dean Beckwith added the third on 69 minutes before McAllister completed his hat-trick two minutes from time.
The defeat leaves Tommy Warrilow's (pictured) side 19th in the league, one place and three points clear of the relegation zone.