Format
TM
Tobias, Mason
🇺🇸FIDE 39981967· Male· United States of America· Born in 2005
Follow Mason TobiasTrack his monthly FIDE ratings, games, tournaments and more.
Mason Tobias, a 21-year-old American player, is rated 1576. He is on a steady climb with +21 Elo over the past 12 months. 23 rated games in the past year. Recent standard appearances include 2026 Spring Tuesday Night Marathon - Under 1600 Round 5-7, 2026 Spring Tuesday Night Marathon - Under 1600 Round 1-4, and 2026 New Years Tuesday Night Marathon - Under 1600 Round 4-7. Also played 2 rapid events (including 2026 January Mechanics' Weekend - Rapid U1800) recently. His peak of 1608 was reached at age 21 (Mar 2026).
Current rating
1576
Standard
Rpd1507·Blz—
All-time high
1608
−32 pts below
Mar 2026 · age 21
Mar 2026 · age 21
Activity
28
games / yr avg. · ≈2/mo
23 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#155,535
#155,535 · players worldwide · of 216,808
Career timeline
6 entries2026
Best 12-month gain (+53 Elo)
1555 → 1608
Mar 2026
Crossed 1600
at age 21
Mar 2026
All-time peak 1608
at age 21 · −32 from today
Mar 2026
2025
Crossed 1500
at age 20
Aug 2025
Crossed 1400
at age 20
Aug 2025
First FIDE rating
1555 · at age 20
Aug 2025
Standard rating history
Last 12 months — activity & highlights
Top opponent
Evolution
+21
1555 → 1576
Tournaments
11
33 games
Score
15/ 3345.5%
15W0D18L
Top 3 wins
1.[W]vsAlexander Borisovich Menchtchikov1,737·2026 New Years Tuesday Night Marathon - Under 1600 Round 1-3·R2·+29.4
2.[W]vsOliver Peter Nystrom Burke1,609·2025 Fall Tuesday Night Marathon - Under 1600 Round 1-4·R1·+23.4
Top 3 losses
3.[L]vsSimone Pagan Griso1,582·2026 New Years Tuesday Night Marathon - Under 1600 Round 1-3·R3·-18.7
Last 12 months — tournaments
top 10 of 11| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Mar 2026 | 0/1 | #20 | 765 | -22.4 |
Swiss | Mar 2026 | 2/2 | #9 | 2319 | -9.6 |
Swiss | Jan 2026 | 2/2 | #4 | 2426 | +48.8 |
Swiss | Jan 2026 | 1/2 | #15 | 1660 | +12.0 |
Swiss | Nov 2025 | 1/1 | #25 | 2465 | -13.6 |
Worst Elo result: 2026 Spring Tuesday Night Marathon - Under 1600 Round 5-7 (-22.4 Elo, finished #20).
Rankings
/
United States of America
#4,428
out of 5,412 players
Americas
#19,167
in continent
World
#155,518
out of 400,000+
National ranking
Europe & World
Europe
World
United States of America
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Americas
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| 2 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,788 |
| 3 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
| 4 | 🇺🇸Follow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,732 |
| 5 | 🇺🇸Follow Hans Moke NiemannTrack their monthly FIDE ratings, games, tournaments and more. | 2,728 |
| 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. | 2,718 |
| 8 | 🇺🇸Follow Samuel SevianTrack their monthly FIDE ratings, games, tournaments and more. | 2,696 |
| 9 | 🇺🇸Follow Jeffery XiongTrack their monthly FIDE ratings, games, tournaments and more. | 2,656 |
| 10 | 🇺🇸Follow Ray RobsonTrack their monthly FIDE ratings, games, tournaments and more. | 2,653 |
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| 19167 | 1,576 | |
World
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| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
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| ... | ||
| 155518 | 1,576 | |