Michael Walder vs Derek Oconnor
Michael Walder (70, USA) and Derek Oconnor (33, USA) have met 18 times in classical OTB. Oconnor leads with 17 wins to 0, with 1 draws — a 6% draw rate. Their last meeting at 2018 Berkeley Club Championship saw Oconnor prevail. With current classical ratings of 1838 and 2280, the Elo model gives Oconnor a 87% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 1838 vs 2280 (Δ -442)
With Michael Walder as white
4% Michael9% draw87% Derek
With Derek Oconnor as white
2% Michael8% draw90% Derek
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Michael Walder | Derek Oconnor | |
|---|---|---|
| Current rating (STD) | 1838 | 2280 |
| Peak rating | 2048 · Jan 2016 | 2280 · Jun 2019 |
| Peak age | 60 | 26 |
| World rank now | #64,830 | #5,548 |
| World rank peak | #25,260 | #5,469 |
| Federation rank now | #1,806 | #191 |
| Games (career, STD) | 681 | 384 |
| Months active | 140 | 121 |
| % white wins | 57% | 58% |
| % black wins | 43% | 56% |
| TPR last 12m (STD) | 1802 | — |
| Activity 12m (games) | 33 | 0 |
Best Win
Michael Walder
Derek Oconnor
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (18)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Michael Walder
Derek Oconnor