CChessStats

OP Collaterale CR Lazio 2026

Open SwissStandard

27 players participated in this 9-round tournament, held from 22 May 2026 to 24 May 2026 in Roma, Italy. 3 federations represented. Top 10 Elo average was 1676, and top seed was Nicola Gabriele Constantin (🇮🇹 ITA, 1797).

Roberto Pejani (🇮🇹 ITA, 0) won with 8.0/9, ahead of Samuele Gabrieli (7.0) and Andres Junior Domingo Inca Leon (6.0). Pejani won solo starting round 4.

The biggest upset came in round 9: Lorenzo Boncompagni Del Valle (1423) beat Nicola Gabriele Constantin (1797), a +374-point gap.

Location
🇮🇹Roma, Italy
Dates
22 May 2026 → 24 May 2026
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 9 rounds
Top seed
Avg top 10
1,676
Participants
27
Federations · 3 represented
🇮🇹Italy×24
🇵🇪Peru×1
🇵🇭Philippines×1
Top 3

How it unfolded

Top 6 · 9 rounds

Roberto Pejani led from R4; +1.0-point edge over the runner-up.

Co-leaders
10
4
2
1
1
1
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9
R4–R9 · LEAD HELD

Roberto Pejani never relinquished the lead after R4; final gap +1.0 over the runner-up.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Roberto Pejani beat Samuele Gabrieli (White).

WIN STREAKS · 2 top finishers

Roberto Pejani 7 wins (R1–R7)Samuele Gabrieli 3 wins (R6–R8)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Pejani, Roberto0ITA+16N+17B+2B+14N+3B+8N+5B6N+7B8.043.547.541.5017940.0
2Gabrieli, Samuele1675ITA+19N+18B1N+13B=14B+9N+3B+8N=6B7.042.045.032.001882+60.0
3Inca Leon, Andres Junior Domingo0PER+13N=11B+7N+20B1N+14B2N=5N+8B6.044.547.026.7517540.0
4Fiorelli, Alessandro1595ITA+9N14B+21N+7B=5B=6N8B+10B+11N6.041.043.528.501717+23.2
5Pizzala, Luca1773ITA24N+19B+18N+11B=4N+15B1N=3B+9N6.040.042.026.001703-13.2
6Morgante, Domenico1637ITA=22N+15B11N+23B+20N=4B=13N+1B=2N6.039.041.026.501626-1.4
7Leotta, Salvatore1637ITA=20B+12N3B4N+26B+23N+14N+11B1N5.537.538.517.251873+58.8
8Ongtioco, Ernesto1639PHI+26N+24B14N+9B+11N1B+4N2B3N5.042.543.518.501730+25.2
9Leonardi, Andrea0ITA4B+10N+12B8N+24B2B+19N+15N5B5.040.542.518.5015790.0
10Proverbio, Michele1476ITA11N9B+19N18B+27N+17B+23B4N+16B5.032.033.014.001624+56.0
11Rabiti, Roberto1708ITA+10B=3N+6B5N8B+20N+15B7N4B4.543.546.020.501501-33.0
12Pipitone, Filippo Massimo1539ITA=15N7B9N+16B23N+26B+20B19N+18B4.529.530.513.001464-10.4
13Ferrari Bellisario, Filippo1628ITA3B+27N+24B2N+25B+18N=6BFF4.527.527.511.501684+6.0
14Constantin, Nicola Gabriele1797ITA+23B+4N+8B1B=2N3N7B=18N19B4.044.046.018.251625-56.0
15Romaniello, Donatello0ITA=12B6N+16B+25N+17B5N11N9B=22N4.036.538.513.5015920.0
16Abuhamdieh, Nando1566ITA1BF15N12N+22B+21B+17N+25B10N4.032.532.511.001436-10.4
17Fiengo, Lorenzo1668ITA+27B1NF+21B15N10N16B+23N+26B4.027.527.56.501397-43.2
18Scafe`, Stefano1530ITA+21B2N5B+10NF13B+25N=14B12N3.535.535.511.501455-12.6
19Boncompagni Del Valle, Lorenzo1423ITA2B5N10BF+21NF9B+12B+14N3.034.034.011.001580+33.2
20Di Marzio, Carlo0ITA=7N+22BF3N6B11B12N21N+23B2.533.533.57.2514600.0
21Vaccaro, Alessandro0ITA18NF4B17N19B16N=22N+20B+27B2.526.526.54.757560.0
22Diotallevi, Jacopo0ITA=6B20N25B26N16NF=21B+27N=15B2.523.023.07.2514090.0
23Buffoni, Emilia1525ITA14NF+26B6N+12B7B10N17B20N2.032.532.55.501353-44.3
24Perrone, Andrea1515ITA+5B8N13N+27B9NFFFF2.021.521.57.001555+2.8
25Boncompagni Del Valle, Cristina Maria0ITAFF+22N15B13N+27B18B16NF2.019.519.53.507750.0
26FIDE 55204614108BF23N+22B7N12N27BF17N1.024.524.52.508020.0
27Camaioni, Damiano0ITA17N13BF24N10B25N+26N22B21N1.023.523.51.007720.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets