Jonathan Koh vs Weiliang Tan
Jonathan Koh (33, SGP) and Weiliang Tan (33, CM, SGP) have met 6 times in classical OTB. Koh leads the classical series 4–1 (1 draw). With current classical ratings of 2150 and 2213, the Elo model gives Tan a 42% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2150 vs 2213 (Δ -63)
With Jonathan Koh as white
34% Jonathan25% draw42% Weiliang
With Weiliang Tan as white
26% Jonathan21% draw53% Weiliang
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Jonathan Koh | Weiliang Tan | |
|---|---|---|
| Current rating (STD) | 2150 | 2213 |
| Peak rating | 2237 · Jan 2009 | 2267 · Mar 2011 |
| Peak age | 16 | 18 |
| World rank now | #15,440 | #9,079 |
| World rank peak | #8,412 | #6,558 |
| Federation rank now | #16 | #16 |
| Games (career, STD) | 202 | 424 |
| Months active | 200 | 196 |
| % white wins | 43% | 55% |
| % black wins | 40% | 48% |
| TPR last 12m (STD) | — | — |
| Activity 12m (games) | 0 | 0 |
Best Win
Jonathan Koh
Weiliang Tan
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (6)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Jonathan Koh
Weiliang Tan