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Ardsley, NY (Youth AM)
May 9, 2009
 Rating
Rank NameW–LSpreadOld
Perf
New
+/−
Round-by-Round Results
1[photo]MATTHEW
OCONNOR
4–0+3681044
1594
1063
+19
[photo]
W5
2
1
[photo]
W6
2
1
[photo]
W3
2
1
[photo]
W2
2
1
2[photo]NOAH
TURNER
3–1+337763
1117
799
+36
[photo]
W4
2
1
[photo]
W3
2
1
[photo]
W5
2
1
[photo]
L1
1
2
3[photo]PAOLO
FEDERICO-OMURCHU
2–2+190741
719
740
−1
[photo]
W6
2
1
[photo]
L2
1
2
[photo]
L1
1
2
[photo]
W4
2
1
4[photo]AMY
ROWLAND
2–2−151585
655
592
+7
[photo]
L2
1
2
[photo]
W5
2
1
[photo]
W6
2
1
[photo]
L3
1
2
5[photo]ALEXANDRA
KUNG
1–3−201618
344
597
−21
[photo]
L1
1
2
[photo]
L4
1
2
[photo]
L2
1
2
[photo]
W6
2
1
6[photo]RACHEL
KELLER
0–4−543
500
[photo]
L3
1
2
[photo]
L1
1
2
[photo]
L4
1
2
[photo]
L5
1
2

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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