Grzegorz Jastrzębski

Profile image of Grzegorz Jastrzębski
Full name: Grzegorz Jastrzębski
Current rank: =385 since
Highest Rank: 173 on 20150525 for weeks
Finals/titles: 0/0

Elo Ratings per Match since January 2013

Choose a table: Match scores, player Elo ratings, player rankings.

A player's elo rating is considered provisional (P) until they have either completed six matches or played matches at at least three different tournaments.

The probability of winning is equal to the predicted share of points scored. A player rated 200 above another corresponds to a 76% chance of winning.

The K value is a development coefficient, and it reduces large swings in the ratings of established players. The K value reduces over time, similar to 538's elo ratings for tennis players: 250/((player's match count+15)**(0.4)))-10

Click table headers to sort.

Date Tournament Round Opponent   Elo Rating
Player

Opponent

Difference
  Share of Points
Predicted

Actual

Difference
  Final Result
Predicted

Actual

Difference
K-Factor Next Elo Change
20150516 Lublin 2015 round of 16
Jacek Kwapiński
1500 P
1474 P
+26
53.7 %
25.0 %
-28.7 %
Win
Lost
Loss
74
1460 P
-40

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