Format
MJ
Mortensen, John Michael
🇬🇺FIDE 31005950· Male· Guam· Born in 2012
Follow John Michael MortensenTrack his monthly FIDE ratings, games, tournaments and more.
John Michael Mortensen, a 14-year-old player, is rated 1509. He has slipped back 72 Elo over the past 12 months. 22 rated games in the past year (≈20/year long-term). Recent standard appearances include 2026 Guam National Championship, MMB National Chess Open Tournament, and 2025 National Team Championship Round 9. Also played 6 rapid (including 2026 Rapid Team Championship) and 3 blitz events (including October 19 Blitz) recently. His peak of 1581 was reached at age 13 (Jun 2025, #38 nationally at the time).
At junior level, he reached #5 nationally in U14.
Current rating
1509
Standard
Rpd1538·Blz1457
All-time high
1581
−-72 pts below
Jun 2025 · age 13
Jun 2025 · age 13
Activity
14
games / yr avg. · ≈1/mo
20 past 12 mo · ≈2/mo
Standard
Moderately active
Standard
Moderately active
Signature stat
#59
Guam
Career timeline
7 entries2025
5th U14 player nationally
at age 13 · rated 1581
Jun 2025
All-time peak 1581
at age 13 · −72 from today
Jun 2025
Peak national rank: #38
at age 13 · rated 1559
May 2025
Crossed 1500
at age 13
Mar 2025
Crossed 1400
at age 13
Mar 2025
Crossed 1200
at age 13
Mar 2025
Standard rating history
Activity & highlights
Evolution
-71
1580 → 1509
Last 12 months — tournaments
5 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Feb 2026 | 3/4 | #50 | 1967 | -33.2 |
Swiss | Nov 2025 | 2.5/3 | #29 | 2027 | -14.0 |
Team | Oct 2025 | 0/1 | #25 | 727 | -20.0 |
Team | Sep 2025 | 4/6 | #26 | 1745 | +22.8 |
Swiss | Jul 2025 | 3/6 | #12 | 1636 | -27.2 |
Most-Played Opponents
vsDavid Long
🇬🇺GUM·1462
+5 −2 =1
8 games·last met Jul 2025
View head-to-head →
vsEmyr Peralta
🇬🇺GUM
+7 −0 =0
7 games·last met Dec 2025
View head-to-head →
vsXuan Chi Tran
🇬🇺GUM·1598
+1 −4 =1
6 games·last met Jan 2026
View head-to-head →
vsJoseph Barotilla
🇬🇺GUM·1578
+2 −4 =0
6 games·last met Oct 2025
View head-to-head →
vsJames Rhodes
🇬🇺GUM·1610
+1 −4 =0
5 games·last met Jan 2026
View head-to-head →
Rankings
/
Guam
#59
out of 105 players
Asia-Pacific
#36,019
in continent
World
#182,235
out of 400,000+
National ranking
Europe & World
Europe
World
Guam
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| 10 | 🇬🇺Follow Khenner De MesaTrack their monthly FIDE ratings, games, tournaments and more. | 1,860 |
| ... | ||
| 59 | 1,509 | |
Asia-Pacific
World
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| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
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| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 4 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 6 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 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 |
| ... | ||
| 182235 | 1,509 | |