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Ardsley, NY (Youth AM)
May 9, 2009
					Rating
Rank		Name	W–L	Spread	Old Perf	New +/−	Round-by-Round Results
1		MATTHEW OCONNOR	4–0	+368	1044 1594	1063 +19		W5 2 1		W6 2 1		W3 2 1		W2 2 1
2		NOAH TURNER	3–1	+337	763 1117	799 +36		W4 2 1		W3 2 1		W5 2 1		L1 1 2
3		PAOLO FEDERICO-OMURCHU	2–2	+190	741 719	740 −1		W6 2 1		L2 1 2		L1 1 2		W4 2 1
4		AMY ROWLAND	2–2	−151	585 655	592 +7		L2 1 2		W5 2 1		W6 2 1		L3 1 2
5		ALEXANDRA KUNG	1–3	−201	618 344	597 −21		L1 1 2		L4 1 2		L2 1 2		W6 2 1
6		RACHEL KELLER	0–4	−543		500		L3 1 2		L1 1 2		L4 1 2		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.