After two thumping 3-0 victories in their last two outings, the Seasiders had almost forgotten what it feels like not to win.
And they were on course for another three points until Marcus Stewart's late header salvaged a point for battling Yeovil.
Scott Vernon gave the home side the lead early in the second half, making amends for his woeful first-half penalty miss.
His spot-kick went three yards wide after tricky winger Wes Hoolahan had been brought down by Yeovil skipper Terry Skiverton.
Vernon's goal - his eighth of the season - had looked certain to be enough to seal the points for the home side. But Stewart found acres of space to head home an equaliser with only four minutes left.
The result leaves the Glovers third in the League One table and they have lost only three of their opening 14 matches. Meanwhile, improving Blackpool are now just above the relegation zone, even though they have secured three-point hauls on only one occasion at home so far this term from seven matches.
After two thumping 3-0 victories in their last two outings, the Seasiders had almost forgotten what it feels like not to win.
And they were on course for another three points until Marcus Stewart's late header salvaged a point for battling Yeovil.
Scott Vernon gave the home side the lead early in the second half, making amends for his woeful first-half penalty miss.
His spot-kick went three yards wide after tricky winger Wes Hoolahan had been brought down by Yeovil skipper Terry Skiverton.
Vernon's goal - his eighth of the season - had looked certain to be enough to seal the points for the home side. But Stewart found acres of space to head home an equaliser with only four minutes left.
The result leaves the Glovers third in the League One table and they have lost only three of their opening 14 matches. Meanwhile, improving Blackpool are now just above the relegation zone, even though they have secured three-point hauls on only one occasion at home so far this term from seven matches.