Jeroen Kooiman
Netherlands · Ghost rating from real tournament results
500rating
184weighted games
14events
11countries faced
22W 22Lrecent record
This rating is provisional. Ghost treats a rating as established at 200 weighted games; this one has 184.
Career
Everything in the archive, handicap events excluded.
22–22career record
50%matches won
48%racks won
2025–2026competing
Best win: Jeroen van der Harst, rated 539 — 4–3.
Recent matches
Most recent first. Handicap events are excluded from the rating.
2026-05-033–0jeffrey bakkeren · Walburg Amateur toernooi #6
What this rating means
A gap of 100 rating points means 2:1 odds in a single game. At 500, Jeroen Kooiman would win about 67% of games against a 400 player, and about 33% against a 600 one.
Over a race to 9 those small per-game edges compound: a 100-point favourite takes the set about 92% of the time. Try any matchup on the calculator.