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
120k+ · England
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Burscough venue · 3rd of 275 men overall
2ndUnofficial
64.75 kg142.7 lb
120k · Finland
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Hyvinkää venue · 7th of 275 men overall
3rdUnofficial
63.4 kg139.8 lb
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
84k · England
2ndGSI
38.65 kg85.2 lb
100k+ · USA
International King Kong Grip Challenge · Oct 25, 2025
3rdUnofficial
37.3 kg82.2 lb
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.
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
Men 67.7 kg149.3 lb Ross Boyle
Women 37.5 kg82.7 lb Emma Hunt
Apr 25, 2026 · 10 athletes
Men 38.1 kg84.0 lb Sergio Aguayo
Women 15.6 kg34.4 lb Valentina Torres
Feb 7, 2026 · 21 athletes
Men 60.0 kg132.3 lb Saku Korhonen
Women 31.25 kg68.9 lb Marja Laari
Oct 25, 2025 · 386 athletes
Men 64.0 kg141.1 lb Ross Boyle
Women 38.8 kg85.5 lb Emma Hunt
Sep 6, 2025 · 9 athletes
Men 39.9 kg88.0 lb Daniel Iglesias
Women 20.4 kg45.0 lb Valentina Bravo
Records
Men · All-time · 120k+
64.0 kg141.1 lb
Ross Boyle · England
Women · All-time · 84k
38.8 kg85.5 lb
Emma Hunt · England
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.
Men · 59k
41.65 kg91.8 lb
Jesse Hagedorn
UnofficialUSA · 2026
Men · 66k
46.35 kg102.2 lb
Chris De Stefano
UnofficialEngland · 2026
Men · 74k
51.27 kg113.0 lb
Clint Ziegler
GSIUSA · 2025
Men · 83k
53.1 kg117.1 lb
Luca Zehntner
UnofficialGermany · 2026
Men · 93k
60.0 kg132.3 lb
Saku Korhonen
GSIFinland · 2026
Men · 105k
61.58 kg135.8 lb
Luke Raymond
Unofficial2026
Men · 120k
64.75 kg142.7 lb
Harri Tolonen
UnofficialFinland · 2026
Men · 120k+
67.7 kg149.3 lb
Ross Boyle
UnofficialEngland · 2026
Women · 52k
28.1 kg61.9 lb
Emina Alic
GSI2025
Women · 57k
31.9 kg70.3 lb
Emina Alic
Unofficial2026
Women · 63k
33.85 kg74.6 lb
Tammy McClure
GSIUSA · 2025
Women · 72k
34.62 kg76.3 lb
Tammy McClure
UnofficialUSA · 2026
Women · 84k
38.8 kg85.5 lb
Emma Hunt
GSIEngland · 2025
Women · 100k
32.55 kg71.8 lb
Heather MacDowall
GSI2025
Women · 100k+
38.65 kg85.2 lb
Sarah Chappelow
GSIUSA · 2025
Top lifts · women's
Rank 101
20.7 kg45.6 lb
Women · 72k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Fresno venue · 60th of 63 women overall
Rank 102
20.64 kg45.5 lb
Women · 72k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Darwin venue · 26th of 63 women overall
Rank 103
20.6 kg45.4 lb
Women · 100k, Masters 60-69
International King Kong Grip Challenge · Oct 25, 2025
Rank 104
20.6 kg45.4 lb
Women · 72k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Albuquerque venue · 54th of 63 women overall
Rank 105
20.6 kg45.4 lb
Women · 72k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Albuquerque venue · 34th of 63 women overall
Rank 106
20.4 kg45.0 lb
Women · 63k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Sydney venue · 52nd of 63 women overall
Rank 107
20.2 kg44.5 lb
Women · 100k+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Canberra venue · 48th of 63 women overall
Rank 108
20.15 kg44.4 lb
Women · 72k, Masters 50-59
International King Kong Grip Challenge · Oct 25, 2025
Rank 109
20.15 kg44.4 lb
Women · 84k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Calgary venue · 57th of 63 women overall
Rank 110
20.15 kg44.4 lb
Women · Youth 14-15
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Calgary venue · Youth 14-15
Rank 111
20.05 kg44.2 lb
Women · 72k, Youth 16-17
International King Kong Grip Challenge · Oct 25, 2025
Rank 112
20.03 kg44.2 lb
Women · 100k+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Kingwood venue · 40th of 63 women overall
Rank 113
20.03 kg44.2 lb
Women · 57k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Sumy venue · 58th of 63 women overall
Rank 114
20.03 kg44.2 lb
Women · 63k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Kingwood venue · 50th of 63 women overall
Rank 115
20.0 kg44.1 lb
Valentina BravoChile
Women · 57k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Santiago venue · 53rd of 63 women overall
Rank 116
19.4 kg42.8 lb
Women · 100k+
International King Kong Grip Challenge · Oct 25, 2025
Rank 117
19.1 kg42.1 lb
Rachel HartviksenCanada
Women · 52k
International King Kong Grip Challenge · Oct 25, 2025
Rank 118
19.0 kg41.9 lb
Women · 100k+, Masters 50-59
International King Kong Grip Challenge · Oct 25, 2025
Rank 119
18.9 kg41.7 lb
Women · 84k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Calgary venue · 59th of 63 women overall
Rank 120
18.8 kg41.4 lb
Women · 57k
International King Kong Grip Challenge · Oct 25, 2025
Rank 121
18.45 kg40.7 lb
Women · 57k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Santiago venue · 63rd of 63 women overall
Rank 122
18.3 kg40.3 lb
Women · 72k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Luumaki venue · 55th of 63 women overall
Rank 123
18.1 kg39.9 lb
Women · 72k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Albuquerque venue · 62nd of 63 women overall
Rank 124
18.0 kg39.7 lb
Women · 72k
International King Kong Grip Challenge · Oct 25, 2025
Rank 125
17.9 kg39.5 lb
Women · 52k
Doctores Grip Battle 2 · Sep 6, 2025
Rank 126
17.8 kg39.2 lb
Women · 52k, Youth 11-13
International King Kong Grip Challenge · Oct 25, 2025
Rank 127
17.65 kg38.9 lb
Women · 84k, Masters 60-69
International King Kong Grip Challenge · Oct 25, 2025
Rank 128
17.2 kg37.9 lb
Women · 84k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Canberra venue · 61st of 63 women overall
Rank 129
17.0 kg37.5 lb
Women · 72k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Santiago venue · 51st of 63 women overall
Rank 130
17.0 kg37.5 lb
Women · Youth 16-17
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Santiago venue · Youth 16-17
Rank 131
16.9 kg37.3 lb
Women · 72k
Doctores Grip Battle 2 · Sep 6, 2025
Rank 132
16.2 kg35.7 lb
Women · 57k, Youth 10 and Under
International King Kong Grip Challenge · Oct 25, 2025
Rank 133
15.95 kg35.2 lb
Women · 52k, Youth 11-13
International King Kong Grip Challenge · Oct 25, 2025
Rank 134
15.8 kg34.8 lb
Women · 52k
International King Kong Grip Challenge · Oct 25, 2025
Rank 135
14.9 kg32.8 lb
Women · 52k, Youth 11-13
International King Kong Grip Challenge · Oct 25, 2025
Rank 136
14.9 kg32.8 lb
Women · 52k, Youth 11-13
International King Kong Grip Challenge · Oct 25, 2025
Rank 137
14.64 kg32.3 lb
Women · Youth 14-15
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Lecompton venue · Youth 14-15
Rank 138
14.64 kg32.3 lb
Women · Youth 11-13
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Lecompton venue · Youth 11-13
Rank 139
14.25 kg31.4 lb
Women · Youth 8-10
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Fresno venue · Youth 8-10
Rank 140
13.7 kg30.2 lb
Women · Youth 8-10
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Arendal venue · Youth 8-10
Rank 141
12.8 kg28.2 lb
Women · 57k, Youth 11-13
International King Kong Grip Challenge · Oct 25, 2025
Rank 142
12.6 kg27.8 lb
Women · 47k, Youth 11-13
International King Kong Grip Challenge · Oct 25, 2025
Rank 143
12.5 kg27.6 lb
Women · Youth 11-13
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Sydney venue · Youth 11-13
Rank 144
12.2 kg26.9 lb
Women · Youth 7 and under
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Redmond venue · Youth 7 and under
Rank 145
12.0 kg26.5 lb
Women · Youth 11-13
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Boulder venue · Youth 11-13
Rank 146
11.91 kg26.3 lb
Women · 47k, Youth 11-13
International King Kong Grip Challenge · Oct 25, 2025
Rank 147
9.5 kg20.9 lb
Women · 47k, Youth 10 and Under
International King Kong Grip Challenge · Oct 25, 2025
Rank 148
6.8 kg15.0 lb
Women · 47k, Youth 10 and Under
International King Kong Grip Challenge · Oct 25, 2025
Rank 149
6.6 kg14.6 lb
Women · Youth 7 and under
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Spokane venue · Youth 7 and under
Rank 150
6.4 kg14.1 lb
Women · Youth 7 and under
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Fresno venue · Youth 7 and under
Rank 151
5.8 kg12.8 lb
Women · 47k, Youth 10 and Under
International King Kong Grip Challenge · Oct 25, 2025
Rank 152
2.91 kg6.4 lb
Women · 47k, Youth 10 and Under
International King Kong Grip Challenge · Oct 25, 2025
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.