CChessStats

Tonsberg Grand Prix TOUR B

Open SwissStandard

34 players participated in this 6-round tournament, held from 07 Nov 2025 to 09 Nov 2025 in Tonsberg, Norway. 2 federations represented. Top 10 Elo average was 1709, and top seed was Jorgen Froisland (🇳🇴 NOR, 1870).

Andreas Leer-Helgesen (🇳🇴 NOR, 1631) won with 4.0/6, ahead of Cyril Karlsen (4.0) and Oskar Sandberg Linnerud (3.5). Leer-Helgesen shared the lead from round 4, winning on tie-break.

The biggest upset came in round 5: Dainius Marozas (1583) beat Haakon Bakken (1753), a +170-point gap.

Location
🇳🇴Tonsberg, Norway
Dates
07 Nov 2025 → 09 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇳🇴Jorgen Froisland1870
Avg top 10
1,709
Participants
34
Federations · 2 represented
🇳🇴Norway×33
🇺🇦Ukraine×1
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 2 players tied at 4.0/6, decided on Buchholz. Title race narrowed from 8 co-leaders at R4 to 2 at the finish.

Co-leaders
34
34
15
8
4
2
1.534.56R1R2R3R4R5R6
R6 · TIEBREAK CLUSTER

2 players finish on 4.0/6. Leer-Helgesen takes the title on Buchholz Cut1 (7.5).

WIN STREAKS · 3 top finishers

Andreas Leer-Helgesen 4 wins (R3–R6)Cyril Karlsen 4 wins (R3–R6)Oskar Sandberg Linnerud 3 wins (R3–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Andreas Leer-Helgesen*
2Cyril Karlsen*
3Oskar Sandberg Linnerud*
½
4Sivert Beer
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Leer-Helgesen, Andreas1631NORFF+28B+18B+13N+6N4.07.57.57.502402+61.6
2Karlsen, Cyril1761NORFF+22B+14N+15B+13N4.07.57.57.502364+21.2
3Linnerud, Oskar Sandberg1624NORFF+14B+21N+19B=4N3.58.08.06.502382+52.4
4Beer, Sivert0NORFF+20N+7N=5B=3B3.010.510.57.2517360.0
5Shcherbyna, Mark1759UKRFF+27N+9B=4N=7B3.09.09.06.252063+44.8
6Marozas, Dainius1583NORFF+34B+28N+27N1B3.06.06.02.001842+53.6
7Linkjendal, Sondre Olsen1698NORFF+29N4B+8B=5N2.59.59.55.001888+14.4
8Urnikis, Eividas0NORFF+16B+10B7N=27B2.58.08.05.0017190.0
9Froisland, Jorgen1870NORFF=19B5N+16B+20N2.58.08.04.251772-19.6
10Loberg, Eivind1686NORFF+15B8N+30B=19N2.57.07.03.751842+10.8
11Skjarholt, Arne1620NORFF18N+29B=21B+24N2.55.55.53.251683+6.6
12Brauter, Gard1466NORFF+32N=27B20N+18B2.55.05.03.001726+49.6
13Karlsen, Ciljan1606NORFF+23B+30N1B2B2.010.510.52.501635+0.8
14Skotheim, Havard1513NORFF3N2B+29N+30B2.09.59.52.001646+7.8
15Jorgensen, Catherine1600NORFF10N+32B2N+21B2.09.09.02.501642+5.6
16Lorentzen, Jan Ove1622NORFF8N+23B9N+17B2.08.58.53.501749+10.4
17Fossheim, Matias Arhus0NORFF=25B+31N=28B16N2.05.55.52.251402-6.4
18Pedersen, Helge Fischer1619NORFF+11B1N=24B12N1.510.510.53.251513-12.2
19Schjott-Bugge, Henrik1649NORFF=9N=20B3N=10B1.510.010.03.251622-15.6
20Haddeland, Ask1650NORFF4B=19N+12B9B1.59.59.53.251682+4.4
21Rad, Ramin1495NORFF+24B3B=11N15N1.59.59.52.751522+2.6
22Andresen, Frank1487NORFF2N+25N31B=26N1.58.08.02.251475-3.2
23Sundbo, Stian1531NORFF13N16N+26B=28N1.56.56.52.001485-11.2
24Halvorsen, Frode1618NORFF21N+33B=18N11B1.56.56.51.751486-13.8
25Bergfjord, Christian Emil0NORFF=17N22BF+31N1.54.54.52.0012750.0
26Klow, Asmund1469NORFF33B+34N23N=22B1.54.04.00.751446-5.6
27Bakken, Haakon1753NORFF5B=12N6B=8N1.011.011.02.501336-61.2
28Vatne, Benjamin Ljosland1580NORFF1N6B=17N=23B1.010.510.51.751375-42.4
29Larsen, Richard1631NORFF7B11N14B+33N1.08.08.01.001429-21.2
30Jullum, Hege Ibsen1440NORFF+31B13B10N14N1.07.57.51.00825-15.4
31Bjorkmann, Knut1471NORFF30N17B+22N25B1.06.06.01.5013330.0
32Vatneodegard, Marie1514NORFF12B15N+33N1.05.55.51.001417-6.6
33Kvakkestad, Thor Fegth1560NORFF+26N24N32B29B1.05.05.01.501359-41.2
34Kristiansen, Terje1576NORFF6N26BF0.06.06.00.00726-22.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets