Format
FI
Ferreira Isasi, Oscar
FM🇵🇾FIDE 3700135· Male· Paraguay· Born in 1951
Follow Oscar Ferreira IsasiTrack his monthly FIDE ratings, games, tournaments and more.
Oscar Ferreira Isasi, a 75-year-old FIDE Master, is rated 2158 and ranked 15th among PAR players, and in the top 5% worldwide. He has held steady between 2150 and 2200 for 13 months. 14 rated games in the past year (≈6/year long-term). Recent appearance: X GRAND PRIX AJEDREZ DEL ESTE 2025. Also played 2 blitz events (including X GRAND PRIX AJEDREZ DEL ESTE BLITZ 2025) recently. He had 5 career breaks: 20 months (2003–2004), 20 months (2005–2007), 17 months (2009–2010), 15 months (2010–2011) and 146 months (2012–2024). His peak of 2290 was reached at age 57 (Apr 2008); he also reached #6 nationally in Jan 2008 and spent 46 months in top 10.
Awarded FM in 2001 (age 50).
Current rating
2158
Standard
Rpd2195·Blz2101
All-time high
2290
−132 pts below
Apr 2008 · age 57
Apr 2008 · age 57
Activity
7
games / yr avg. · ≈1/mo
7 past 12 mo · ≈1/mo
classical only
Occasional
classical only
Occasional
Signature stat
#15
#15 · PAR players · of 370
46 months in National top 10 (2001–2013)
46 months in National top 10 (2001–2013)
Career timeline
19 entries2024
71st 70-75 player worldwide
at age 73 · rated 2220
Dec 2024
2013
46 months in national top 10
longest streak 21 months · since Jul 2001
May 2013
2012
1st 60-65 player nationally
at age 61 · rated 2247
Oct 2012
Inactive for 146 months
paused at 2247 → returned at 2220
Sep 2012
2010
Inactive for 15 months
paused at 2286 → returned at 2251
Jul 2010
2009
Inactive for 17 months
paused at 2282 → returned at 2286
Jan 2009
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
Activity & highlights
Evolution
-15
2173 → 2158
Tournaments
1
7 games
Score
4.5/ 764.3%
3W3D1L
Top 3 wins
Top 1 loss
Last 12 months — tournaments
1 event| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | Nov 2025 | 4.5/7 | #12 | 1966 | -15.0 |
Most-Played Opponents
vsAngel C. HernandezFM
🇵🇾PAR·2162
+0 −0 =6
6 games·last met May 2025
View head-to-head →
vsRodolfo CanteroCM
🇵🇾PAR·2263
+1 −3 =1
5 games·last met Feb 2026
View head-to-head →
vsRodrigo RomanCM
🇵🇾PAR·1941
+0 −1 =4
5 games·last met Feb 2026
View head-to-head →
vsLuis PatriarcaFM
🇵🇾PAR·2291
+0 −1 =4
5 games·last met May 2010
View head-to-head →
Rankings
/
Paraguay
#15
out of 438 players
Americas
#1,150
in continent
World
#10,700
out of 400,000+
National ranking
Europe & World
Europe
World
Paraguay
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| ... | ||
| 15 | 2,158 | |
Americas
| 1 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 1 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 3 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| 4 | 🇺🇸Follow Hans Moke NiemannTrack their monthly FIDE ratings, games, tournaments and more. | 2,742 |
| 5 | 🇺🇸Follow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,732 |
| 6 | 🇺🇸Follow Levon AronianTrack their monthly FIDE ratings, games, tournaments and more. | 2,724 |
| 7 | 🇺🇸Follow Awonder LiangTrack their monthly FIDE ratings, games, tournaments and more. | 2,696 |
| 7 | 🇺🇸Follow Samuel SevianTrack their monthly FIDE ratings, games, tournaments and more. | 2,696 |
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| 10 | 🇺🇸Follow Ray RobsonTrack their monthly FIDE ratings, games, tournaments and more. | 2,653 |
| ... | ||
| 1150 | 2,158 | |
World
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| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
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| 8 | 🇮🇳Follow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more. | 2,761 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| 9 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 10700 | 2,158 | |