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Ardsley, NY (Youth PM)
May 9, 2009
Division A
 Rating
Rank NameW–LSpreadOld
Perf
New
+/−
Round-by-Round Results
1[photo]MATTHEW
OCONNOR
4–0+6601063
1440
1075
+12
[photo]
W4
2
1
[photo]
W3
2
1
[photo]
W2
2
1
[photo]
W2
2
1
2[photo]DANILO
VICIOSO
2–2+114532
782
551
+19
[photo]
W3
2
1
[photo]
W4
2
1
[photo]
L1
1
2
[photo]
L1
1
2
3[photo]AAKASH
JHAVERI
1–3−316
500
[photo]
L2
1
2
[photo]
L1
1
2
[photo]
L4
1
2
[photo]
W4
2
1
4[photo]JORDAN
STEIN
1–3−458
500
[photo]
L1
1
2
[photo]
L2
1
2
[photo]
W3
2
1
[photo]
L3
1
2
Division B
 Rating
Rank NameW–LSpreadOld
Perf
New
+/−
Round-by-Round Results
1[photo]AMY
ROWLAND
4–0+862592
1375
665
+73
[photo]
W3
2
1
[photo]
W4
2
1
[photo]
W2
2
1
[photo]
W2
2
1
2[photo]EVAN
WINSTON
2–2+289397
546
409
+12
[photo]
W4
2
1
[photo]
W3
2
1
[photo]
L1
1
2
[photo]
L1
1
2
3[photo]R TERENCE JR
SMITH
2–2−683
500
[photo]
L1
1
2
[photo]
L2
1
2
[photo]
W4
2
1
 
B
+50
4[photo]CIARAN
KAGER
1–3−568
500
[photo]
L2
1
2
[photo]
L1
1
2
[photo]
L3
1
2
 
B
+50

Legend

Rank
A player’s rank at the tournament, based on their wins, losses and spread. May be incorrect if a director has submitted bye-related data in a deprecated format.
Name
A player’s name as it appears in the ratings list.
W-L
A player’s record of wins and losses. Byes count as wins, forfeits as losses, and ties as half-win/half-losses.
Spread
The difference between the number of points a player scores and the number of points scored by all of the opponents.
Old
A player’s pretournament rating.
Perf
A player’s performance rating, representing the player’s strength counting only this event.
New
A player’s post-tournament rating.
+/−
The difference between the player’s pretournament and post-tournament ratings.
Traditional Rating
A player’s rating computed using the original normal expectation curve.
2008 Revised Rating
A player’s rating computed using the new logistic expectation curve, introduced at the beginning of October 2008.
Rating
A player’s rating according to the rating system in effect for this tournament. If more than one pair of columns is given, this event was split-rated because of its length.
Round-by-Round Results
A player’s list of opponents, with photos where available (hover mouse over photo for name), one of WLTB (win, loss, tie or bye), opponent rank, player score and opponent score.

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