David Halliwell

Profile image of David Halliwell
Full name: David Halliwell
Current rank: unranked since January 27, 2020
Highest Rank: 61st first reached September 9, 2019 (1 week in total)
Highest Year-End Rank: 67th (2019)
Titles/finals: 1/1
Elo Rating: 1603 (provisional Elo)

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 on column headers to sort the table.

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
2019‑01‑26 Newcastle 2019
final
Adrian Goldwaser
Won
1564 P
1606
-42
44.0 %
70.0 %
+26.0 %
Lose
Won
Win
70
1603 P
+39
2019‑01‑26 Newcastle 2019
semi-final
Domenyk La Terra
Won
1537 P
1456
+81
61.5 %
55.6 %
-5.9 %
Win
Won
-
72
1564 P
+27
2019‑01‑26 Newcastle 2019
round of 8
Jordan Turley
Won
1500 P
1500 P
0
50.0 %
100.0 %
+50.0 %
50/50
Won
-
74
1537 P
+37

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