2026 Spring Tuesday Night Marathon - Under 1600 Round 1-4
26 players participated in this 4-round tournament, held from 03 Mar 2026 to 24 Mar 2026 in San Francisco, CA, United States. Top 10 Elo average was 1636, and top seed was Romeo Barreyro (🇺🇸 USA, 1744).
Andrew Burkett Rosston (🇺🇸 USA, 1695) won with 3.0/4, ahead of Neel Gore (3.0) and Bryan D Martin (3.0). Rosston won on tie-break after catching the field in the final round.
The biggest upset came in round 2: John Pirone (1490) beat Alexander Robins (1690), a +200-point gap.
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How it unfolded
Top 6 · 4 roundsTight race until R4; 3 players tied at 3.0/4, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 3 at the finish.
3 players finish on 3.0/4. Rosston takes the title on Buchholz Cut1 (6.0).
Andrew Burkett Rosston beat Neel Gore (White).
Andrew Burkett Rosston 3 wins (R1–R4)Bryan D Martin 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Andrew Burkett Rosston | * | 1 | — | — |
| 2Neel Gore | 0 | * | — | — |
| 3Bryan D Martin | — | — | * | 0 |
| 4Kyle Weaver | — | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Rosston, Andrew Burkett | 1695 | USA | +7N | +2B | F | +19N | 3.0 | 6.0 | 6.0 | 6.00 | 2454 | +35.6 |
| 2 | Gore, Neel | 0 | USA | +23B | −1N | +22B | +4N | 3.0 | 5.5 | 5.5 | 2.50 | 1665 | 0.0 |
| 3 | Martin, Bryan D | 1585 | USA | +22N | +25B | +6N | −5B | 3.0 | 4.5 | 4.5 | 2.00 | 1614 | +3.2 |
| 4 | Karpe, Ummon | 1634 | USA | +24N | =5B | +7N | −2B | 2.5 | 7.5 | 7.5 | 3.25 | 1875 | +25.2 |
| 5 | Weaver, Kyle | 1620 | USA | +13B | =4N | F | +3N | 2.5 | 7.0 | 7.0 | 5.75 | 1879 | +37.6 |
| 6 | Tobias, Mason | 1608 | USA | +18B | +8N | −3B | −10N | 2.0 | 7.0 | 8.0 | 3.00 | 1519 | -9.6 |
| 7 | Barreyro, Romeo | 1744 | USA | −1B | +23N | −4B | +18N | 2.0 | 6.5 | 6.5 | 1.00 | 865 | -24.4 |
| 8 | Kojevnikov, Alexander | 1453 | USA | +12N | −6B | −9N | +26B | 2.0 | 5.5 | 5.5 | 1.50 | 1587 | +14.4 |
| 9 | FIDE 566008956 | 0 | — | F | F | +8B | +14N | 2.0 | 3.5 | 3.5 | 3.50 | 1537 | 0.0 |
| 10 | Raman, Keshav V | 0 | USA | F | F | +25N | +6B | 2.0 | 2.0 | 2.0 | 2.00 | 1628 | 0.0 |
| 11 | Mackley, Merlin Ethan | 1624 | USA | F | +24B | +12N | F | 2.0 | 1.5 | 1.5 | 1.50 | 2365 | +16.8 |
| 12 | Starr, Albert | 1565 | USA | −8B | +18N | −11B | =16N | 1.5 | 5.5 | 6.5 | 1.75 | 739 | -21.4 |
| 13 | Hack, Richard | 1598 | USA | −5N | +15B | F | =17N | 1.5 | 5.5 | 5.5 | 2.25 | 1534 | -5.2 |
| 14 | Harris, Clarence | 1541 | USA | =15N | −17B | +23N | −9B | 1.5 | 5.0 | 5.0 | 0.75 | 1298 | -12.8 |
| 15 | Blum, Paul A | 1442 | USA | =14B | −13N | −16B | +24N | 1.5 | 4.5 | 4.5 | 0.75 | 1377 | -3.0 |
| 16 | Wardle, Braxton | 0 | USA | F | −19B | +15N | =12B | 1.5 | 4.0 | 4.0 | 2.25 | 1523 | 0.0 |
| 17 | Cao, Danny | 1539 | USA | F | +14N | F | =13B | 1.5 | 3.0 | 3.0 | 2.25 | 1763 | +11.6 |
| 18 | FIDE 566008930 | 0 | — | −6N | −12B | +24N | −7B | 1.0 | 5.5 | 5.5 | 0.00 | 839 | 0.0 |
| 19 | Turner, Robert | 1563 | USA | F | +16N | F | −1B | 1.0 | 4.5 | 4.5 | 1.50 | 895 | -6.4 |
| 20 | Pirone, John | 1490 | USA | F | +21N | F | F | 1.0 | 1.0 | 1.0 | 1.00 | 2490 | +30.4 |
| 21 | Robins, Alexander | 1690 | USA | F | −20B | F | +22N | 1.0 | 1.0 | 1.0 | 0.00 | 690 | -30.4 |
| 22 | FIDE 566008948 | 0 | — | −3B | F | −2N | −21B | 0.0 | 7.0 | 7.0 | 0.00 | 838 | 0.0 |
| 23 | FIDE 566008921 | 0 | — | −2N | −7B | −14B | F | 0.0 | 6.5 | 6.5 | 0.00 | 843 | 0.0 |
| 24 | FIDE 30979110 | 0 | — | −4B | −11N | −18B | −15B | 0.0 | 6.0 | 7.0 | 0.00 | 767 | 0.0 |
| 25 | FIDE 570015171 | 0 | — | F | −3N | −10B | F | 0.0 | 5.0 | 5.0 | 0.00 | 785 | 0.0 |
| 26 | FIDE 566009863 | 0 | — | F | F | F | −8N | 0.0 | 2.0 | 2.0 | 0.00 | 653 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Weaver, KyleUSA+37.62.5 pts · #1
- 2Rosston, Andrew BurkettUSA+35.63.0 pts · #2
- 3Pirone, JohnUSA+30.41.0 pts · #10
- 1Robins, AlexanderUSA-30.41.0 pts · #18
- 2Barreyro, RomeoUSA-24.42.0 pts · #20
- 3Starr, AlbertUSA-21.41.5 pts · #24
- R2+200 Elo gap
- R1+112 Elo gap
- R3+110 Elo gap