Pinch · every record book

Thumb Blaster 1 5/8"

Every record and contest lift for the Thumb Blaster 1 5/8" from every body we track, side by side. Each entry carries its owner's badge and a footnote to the owner's own records.

Records from: GSIUnofficial

Contests: 5; 46 counting each venue
Athletes: 602
Lifts: 784
First contested: Sep 6, 2025
Last contested: Oct 24, 2026

A contest held at several venues on one day counts once. A record that repeats a contest lift counts as one lift.

Top lifts

Each athlete's best lift, any class or division, across every source.

Men

1stUnofficial
67.7 kg149.3 lb
Ross Boyle
120k+ · England
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Burscough venue · 3rd of 275 men overall
2ndUnofficial
64.75 kg142.7 lb
Harri Tolonen
120k · Finland
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Hyvinkää venue · 7th of 275 men overall
3rdUnofficial
63.4 kg139.8 lb
Andy Gagnon
120k+ · Canada
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Ottawa venue · 1st of 275 men overall (King Kong of Grip)

Women

1stGSI
38.8 kg85.5 lb
Emma Hunt
84k · England
International King Kong Grip Challenge · 2025
2ndGSI
38.65 kg85.2 lb
Sarah Chappelow
100k+ · USA
International King Kong Grip Challenge · Oct 25, 2025
3rdUnofficial
37.3 kg82.2 lb
Jenn Tibbenham
100k+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Kent venue · 1st of 63 women overall (Queen Kong of Grip)

Contest history

Every contest that featured the Thumb Blaster 1 5/8", newest first, with how many athletes lifted it and who won.

ContestDateAthletesMen's winnerWomen's winner

International King Kong Grip ChallengeUnofficial
42 venues
Ottawa, Wyalusing, Burscough, Coram, Hyvinkää, Justin, Luumaki, New Castle, Sydney, Arendal, Woodbury, Fredrikstad, Spokane, Black River Falls, Fredericton, Munich, Hamburg, Sumy, Troy, Bethesda, Greenville, Pilot Butte, Pocatello, Redmond, Kent, Iisalmi, Albuquerque, Thousand Oaks, Manassas, Fresno, Barre, Järvenpää, Lecompton, Boulder, Canberra, Calgary, Santiago, Kingwood, Darwin, Vancouver, Boise, Örebro
Oct 24, 2026 · 358 athletes
358
Men 67.7 kg149.3 lb Ross Boyle
Women 37.5 kg82.7 lb Emma Hunt
Ranking Chile Grip IGSI
Apr 25, 2026 · 10 athletes
10
Men 38.1 kg84.0 lb Sergio Aguayo
Women 15.6 kg34.4 lb Valentina Torres
Atlas Grip GamesGSI
Feb 7, 2026 · 21 athletes
21
Men 60.0 kg132.3 lb Saku Korhonen
Women 31.25 kg68.9 lb Marja Laari
International King Kong Grip ChallengeGSI
Oct 25, 2025 · 386 athletes
386
Men 64.0 kg141.1 lb Ross Boyle
Women 38.8 kg85.5 lb Emma Hunt
Doctores Grip Battle 2GSI
Sep 6, 2025 · 9 athletes
9
Men 39.9 kg88.0 lb Daniel Iglesias
Women 20.4 kg45.0 lb Valentina Bravo

Records

Grip Sport International

GSI2 recordsGSI event page →

Men · All-time · 120k+
64.0 kg141.1 lb
Ross Boyle · England
International King Kong Grip Challenge · 2025GSI^[1]
Women · All-time · 84k
38.8 kg85.5 lb
Emma Hunt · England
International King Kong Grip Challenge · 2025GSI^[1]

Best by weight class

The heaviest open-division lift in each class across every source. Each body uses its own class limits, so classes are shown as that body writes them. Pick a class to see its full ranking.

Top lifts · 74k

SourceAll sources GSI Unofficial

TypeAll Records Top lifts

GenderAll Men Women

ClassAll 47k 52k 57k 59k 63k 66k 72k 74k 83k 84k 84k+93k 100k 100k+105k 120k 120k+

DivisionOpen + all Masters 50-59 Masters 50+Masters 60-69 Masters 65+Masters 70-79 Youth 7 and under Youth 8-10 Youth 10 and Under Youth 11-13 Youth 14-15 Youth 16-17

ShowBest per athlete Every lift

Units

ResultAthleteClassContestOwner

Rank 1
51.27 kg113.0 lb
Clint ZieglerUSA
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 2
50.5 kg111.3 lb
Sebastian Pacey-SmithCanada
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Fredericton venue · 24th of 275 men overall
Unofficial^[2]
Rank 3
48.45 kg106.8 lb
Matas ZabulisLithuania
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 4
48.15 kg106.2 lb
Marko MustonenFinland
Men · 74k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Luumaki venue · 53rd of 275 men overall
Unofficial^[2]
Rank 5
45.56 kg100.4 lb
Sam MitchellUSA
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Barre venue · 103rd of 275 men overall
Unofficial^[2]
Rank 6
45.35 kg100.0 lb
Marko MustonenFinland
Men · 74k, Masters 50-59
Atlas Grip Games · Feb 7, 2026
GSI^[1]
Rank 7
45.2 kg99.6 lb
Melnik RomanUkraine
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 8
45.07 kg99.4 lb
William HayashiCanada
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 9
44.96 kg99.1 lb
Melnik RomanUkraine
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Sumy venue · 80th of 275 men overall
Unofficial^[2]
Rank 10
44.45 kg98.0 lb
Eemeli VuorioFinland
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Luumaki venue · 125th of 275 men overall
Unofficial^[2]
Rank 11
44.23 kg97.5 lb
Bruce PerkinsUSA
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Greenville venue · 85th of 275 men overall
Unofficial^[2]
Rank 12
43.75 kg96.5 lb
Eemeli VuorioFinland
Men · 74k
Atlas Grip Games · Feb 7, 2026
GSI^[1]
Rank 13
42.16 kg92.9 lb
Michael RogowskiUSA
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 14
41.85 kg92.3 lb
Joe Acaster
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Burscough venue · 99th of 275 men overall
Unofficial^[2]
Rank 15
40.9 kg90.2 lb
Andrew NguyenCanada
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Ottawa venue · 183rd of 275 men overall
Unofficial^[2]
Rank 16
39.9 kg88.0 lb
Baste Andesilic
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Fredrikstad venue · 72nd of 275 men overall
Unofficial^[2]
Rank 17
39.73 kg87.6 lb
Vinnie RivelleseUSA
Men · 74k, Masters 50-59
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 18
39.4 kg86.9 lb
Tom DenmeadeAustralia
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 19
39.4 kg86.9 lb
Stephane BelangerCanada
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Ottawa venue · 160th of 275 men overall
Unofficial^[2]
Rank 20
39.01 kg86.0 lb
Bruce PerkinsUSA
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 21
38.77 kg85.5 lb
Adam Hoke
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 22
37.8 kg83.3 lb
Shirkov AntonUkraine
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Sumy venue · 207th of 275 men overall
Unofficial^[2]
Rank 23
37.69 kg83.1 lb
Matt CannonUSA
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 24
37.1 kg81.8 lb
Patrick LandriaultCanada
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 25
37.0 kg81.6 lb
Jerome BloomEngland
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 26
36.9 kg81.4 lb
Matthew ShawAustralia
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 27
36.75 kg81.0 lb
Henri Kärkkäinen
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 28
36.3 kg80.0 lb
Joseph SterlingEngland
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 29
36.13 kg79.7 lb
Shirkov AntonUkraine
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 30
35.9 kg79.1 lb
Gustavo SelmanChile
Men · 74k
Doctores Grip Battle 2 · Sep 6, 2025
GSI^[1]
Rank 31
35.15 kg77.5 lb
Liam Pietrzyk-CookCanada
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 32
35.1 kg77.4 lb
Stephane BelangerCanada
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 33
34.17 kg75.3 lb
Curt CenciUSA
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 34
34.1 kg75.2 lb
Sylvain DesjarlaisCanada
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 35
34.0 kg75.0 lb
Magnus Torgersen
Men · 74k, Youth 14-15
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 36
32.79 kg72.3 lb
Jay RipleyUSA
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 37
32.0 kg70.5 lb
Joe D Peterson
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Woodbury venue · 215th of 275 men overall
Unofficial^[2]
Rank 38
31.98 kg70.5 lb
Jake Carter
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 39
31.91 kg70.3 lb
Kevin Corrigan
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 40
31.28 kg69.0 lb
Hunter Duncan
Men · 74k, Youth 16-17
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Pilot Butte venue · 236th of 275 men overall
Unofficial^[2]
Rank 41
30.4 kg67.0 lb
Ethan Ferrie
Men · 74k, Youth 14-15
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Ottawa venue · 241st of 275 men overall
Unofficial^[2]
Rank 42
30.07 kg66.3 lb
Kyle Hatton
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 43
29.95 kg66.0 lb
Povilas Mačiulis
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 44
28.95 kg63.8 lb
Hunter Duncan
Men · 74k, Youth 16-17
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 45
28.0 kg61.7 lb
Ivan Encina
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Santiago venue · 251st of 275 men overall
Unofficial^[2]
Rank 46
27.1 kg59.7 lb
Iván Encina
Men · 74k
Ranking Chile Grip I · Apr 25, 2026
GSI^[1]
Rank 47
25.0 kg55.1 lb
Cristóbal Garrido
Men · 74k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Santiago venue · 261st of 275 men overall
Unofficial^[2]
Rank 48
21.8 kg48.1 lb
Simon Neilz-Reid
Men · 74k, Youth 16-17
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]
Rank 49
21.13 kg46.6 lb
Carlos Duarte
Men · 74k
International King Kong Grip Challenge · Oct 25, 2025
GSI^[1]

Each athlete ranked by their best lift for the filters chosen, across every source (heaviest, longest hold or most reps first). A lift a body lists as both a record and a contest result is shown once, as the record. An athlete listed by two bodies appears once per body.^[1]^[2]

All implements →Search the records board for Thumb Blaster 1 5/8" →

Sources

[1]Source: Grip Sport International records database (Grip Sport International), synced October 26, 2026. Records and rankings belong to GSI; corrections belong with them.
[2]Source: results posted by the contest organiser on the GripBoard; unofficial until GSI publishes them (Posted contest results (unofficial)), synced October 25, 2026. Records and rankings belong to the contest organiser until GSI publishes them; corrections belong with them.

How records work

Records are set under a sanctioning body's rules — set, judging, and equipment all matter. A lift in your garage counts for you; a lift on the platform counts for the books. Each entry here is owned by the body that published it, shown by its badge and footnote.

Sanctioning bodies →

Chasing a mark?

Records are set at sanctioned contests. Once a meet's results are posted to the owning body's database, new marks show up here at the next sync. Spot an error? Let us know.

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