Tell vs Tell

Tell vs Tell
Alternating turns, independent draws, ante 4, bets 10 and 20.
 
Round 1. Tell acts first. Tell holds 0.60; Tell holds 0.70.
  Tell raises, then Tell calls.
  The coin is flipped for 20: Tell to win it 40% of the time. Tell takes it.
  Running: Tell -20, Tell +20 (rounds 0-1).
 
Round 2. Tell acts first. Tell holds 0.50; Tell holds 0.50.
  Tell calls, then Tell calls.
  The coin is flipped for 10: Tell to win it 50% of the time. Tell takes it.
  Running: Tell -10, Tell +10 (rounds 1-1).
 
Round 3. Tell acts first. Tell holds 0.70; Tell holds 0.70.
  Tell raises, then Tell calls.
  The coin is flipped for 20: Tell to win it 50% of the time. Tell takes it.
  That takes the match for Tell.
  Running: Tell +10, Tell -10 (rounds 2-1).
 
Tell wins the match 2-1.
Final: Tell +10, Tell -10.