Herman Grooten vs Ruud Janssen
Herman Grooten (68, IM, NED) and Ruud Janssen (47, GM, NED) have met 6 times in classical OTB. Janssen leads the classical series 4–1 (1 draw). With current classical ratings of 2175 and 2462, the Elo model gives Janssen a 74% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2175 vs 2462 (Δ -287)
With Herman Grooten as white
12% Herman15% draw74% Ruud
With Ruud Janssen as white
7% Herman13% draw80% Ruud
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Herman Grooten | Ruud Janssen | |
|---|---|---|
| Current rating (STD) | 2175-4 | 2462 |
| Peak rating | 2408 · Jan 2003 | 2536 · Jan 2020 |
| Peak age | 45 | 41 |
| World rank now | #9,590 | #896 |
| World rank peak | #1,856 | #501 |
| Federation rank now | #336 | #25 |
| Games (career, STD) | 617 | 441 |
| Months active | 217 | 217 |
| % white wins | 51% | 54% |
| % black wins | 47% | 40% |
| TPR last 12m (STD) | 2170 | 2517 |
| Activity 12m (games) | 144 | 5 |
Best Win
Herman Grooten
Ruud Janssen
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).
Herman Grooten
Ruud Janssen