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 · men's 66k
Rank 1
46.35 kg102.2 lb
Chris De StefanoEngland
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Burscough venue · 52nd of 275 men overall
Rank 2
45.5 kg100.3 lb
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Albuquerque venue · 95th of 275 men overall
Rank 3
42.55 kg93.8 lb
Chris De StefanoEngland
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 4
41.03 kg90.5 lb
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 5
40.0 kg88.2 lb
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Albuquerque venue · 139th of 275 men overall
Rank 6
38.3 kg84.4 lb
Sergio AguayoChile
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 7
37.0 kg81.6 lb
Sergio AguayoChile
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Santiago venue · 179th of 275 men overall
Rank 8
36.95 kg81.5 lb
Jari TaipaleFinland
Men · 66k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Luumaki venue · 208th of 275 men overall
Rank 9
36.4 kg80.2 lb
Justin ReidCanada
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Ottawa venue · 164th of 275 men overall
Rank 10
35.0 kg77.2 lb
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Black River Falls venue · 198th of 275 men overall
Rank 11
34.25 kg75.5 lb
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 12
32.6 kg71.9 lb
Justin ReidCanada
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 13
31.9 kg70.3 lb
Erik EmondCanada
Men · 66k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Ottawa venue · 247th of 275 men overall
Rank 14
31.25 kg68.9 lb
Russ KeithUSA
Men · 66k, Masters 50+
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Black River Falls venue · 262nd of 275 men overall
Rank 15
31.1 kg68.6 lb
Andrew NguyenCanada
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 16
30.07 kg66.3 lb
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 17
29.8 kg65.7 lb
Jari TaipaleFinland
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 18
28.9 kg63.7 lb
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Fredrikstad venue · 226th of 275 men overall
Rank 19
28.1 kg61.9 lb
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Iisalmi venue · 237th of 275 men overall
Rank 20
27.38 kg60.4 lb
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 21
27.38 kg60.4 lb
Men · 66k
International King Kong Grip Challenge · Oct 25, 2025
Rank 22
27.15 kg59.9 lb
Men · 66k, Youth 14-15
International King Kong Grip Challenge · Oct 25, 2025
Rank 23
25.1 kg55.3 lb
Cristobal GarridoChile
Men · 66k
Ranking Chile Grip I · Apr 25, 2026
Rank 24
23.9 kg52.7 lb
Men · 66k
International King Kong Grip Challenge · Oct 24, 2026 · Unofficial · Fredrikstad venue · 244th of 275 men overall
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.