Ola Jonsson

Where the 1428.3 rating comes from

From 3 matches played between 12 February 1990 and 26 October 1992, and from them alone. Every line below was written at computation time: nothing is recomputed to show this page.

How to read this

On the right: the change this match produced, then the value before → after. A line's arrival value is the next line's starting value, down to the starting rating given to every newcomer. A ±0.0 is a counted match that did not move the rating, a walkover for instance.

3 matches, from the most recent to the first

beaten by Johan Carlsson 0–2
26/10/92 · ATP 1000 1992 · Qualifying — First round · detail
−19.51447.8 → 1428.3
beaten by Francisco Yunis 0–2
30/07/90 · ATP 250 1990 · First round · detail
−24.91472.7 → 1447.8
beaten by Andrew Sznajder 0–2
12/02/90 · ATP 500 1990 · First round · detail
−27.31500.0 → 1472.7

Only the matches the source publishes appear; what is missing is listed. The source gives the day, not the hour: two matches on the same day are ordered by a reproducible rule, which is not necessarily the real order.