Filmed: December 810, 2008 
Aired: Sunday, May 17, 2009
 Ep13 Final four Immunity challenge: "Tarantula"
 JT wins, barely.
 Final four voted out: Taj, 31 over
Erinn.
 Final three Immunity challenge: "Simmotion"
 JT wins again.
 Final three voted out: Erinn, 10
(or 21) over Stephen.
 Final Tribal Council jury vote: JT
wins, 70, over Stephen.
Episode 13 scoring notes
 On rewatch, the F4 IC was on par with the similar one
in South Pacific as a surprisingly nailbiting
mix of physical and mental effort. Except this time, the
Ozzy held on and won it. Had JT not raced out to a
gigantic lead collecting the bags (say, if Taj had
refused to let him pass when they were both in the same
tunnel, at a time when she knew perfectly well he was
about to collect his final bag), he probably would have
lost, which would have created an interesting conundrum
for the other three. But no, everyone — especially
Taj — loves JT.
 As is standard, the scoring compromise for F3
voteouts: All three get a TCA. JT and Stephen each get
a VFB, but Erinn only receives one VAP. Messy, weird.
Final four vote count:
 Taj received 3 votes, from JT,
Stephen, and Erinn (voted out, 31).
 Erinn received 1 vote, from Taj.
Final three vote count:
 Erinn received 1 vote, from JT
(voted out, 10 or 21).
Jury vote count:
 JTreceived 8 votes, from Brendan,
Tyson, Sierra, Debbie, Coach, Erinn, and Taj (winner,
70).
 Stephen received 0 votes.
Glossary of terms

Challenge stats
 ChW: Challenge Wins. For
tribal challenges, a contestant earns a fraction of
1 win, depending on if they participated (no points
for sitting out). So in a fiveperson tribe's win,
each participant gets (1/5) of a point, or 0.2
points. Duels (or individual RCs as in Ep1) at
Redemption Island count as half a challenge (and
half a win). Individual challenge wins count as a
full point.
 ChA: Challenge Appearances.
Used to calculate ChW%. Fractional for tribal
challenges (same as ChW), except sitouts get
charged for an appearance, because they could have
participated.
 ChW%: Challenge Win%.
Simply, ChW% = ChW / ChA.
 SO: The number of times a
contestant sat out of a challenge.
 Tribal
Council stats
 VFB: Votes For Bootee. The
number of times the contestant has voted for the
person who was ultimately voted out. Applies only to
initial votes (no points for revotes in case of a
tie). Special case: In a final three TC, where only
one vote is cast (by the F3 IC winner), only that
vote counts.
 VAP: Votes Against the
Player. The total number of tribal council votes
cast against the contestant. Again, only initial
votes count (no penalty for revotes), and here a
hidden immunity idol (if played) erases the votes.
In the special case of a final three tribal council
above, only the F3 bootee receives a vote against.
 TotV: Total votes cast
during the tribal councils the player has attended
(again, only initial votes count). Used to adjust
for different vote totals as tribes shrink.
 TCA: Tribal council
appearances. The number of times a contestant has
attended tribal council (at which they voted).
 TC%: Tribal Council percent.
Attempts to reward voting for the bootee (which
players controlling the vote almost always do),
while punishing receiving votes yourself. The
formula is: TC% = [VFB  (VAP/TotV)] / TCA.
 wTCR: weighted Tribal
Council Ratio. Very similar in intent to TC%, but
calculated as a ratio of VFB to VAP, while also
scaling to a uniform number of TC appearances. The
formula is as follows: wTCR =2* [VFB / (4+VAP)] x
(14/TCA). I originally tried (1+VAP) to avoid
dividing by zero, but this overly rewarded getting
zero votes against relative to just one vote
against, which seemed silly. (4+VAP) scaled that
effect back comfortably. 14 was used as the scaling
factor for TC appearances because there are usually
14 episodes, then a final scaling factor of 2 to
bring maximal scores up to roughly even with ChW and
JV% high scores.
 Jury
stats
 JVF: Number of jury votes
for the contestant to win. Maximum nine (Earl
Cole, Fiji), theoretically.
 TotJ: Total number of
jurors. Necessary to not punish unanimous 7juror
winners (JT Thomas, Tocantins).
 JV%: The percent of total
jury votes cast for the contestant, or Jur% = JVF/
TotJ. This number is used, raw, in SurvSc, and is
scaled in SurvAv (multiplied by six) to make it
similar in size to ChW and wTCR.
 Overall
scores
 Survival Score (SurvSc). It's
simply the sum of Challenge Win% (ChW%) + Tribal
Council% (TC%) + Jury Vote%, for a maximum possible
score of 2 (3 after the finale).
 Survival Average (SurvAv). It's a
simple sum of fractional Challenge Wins (ChW),
weighted TC Ratio (wTCR), and (eventually) a
weighted Jury%. The latter two max out at six points
total, for a theoretical maximum score of around 18
or so.