| October · 1 sale · median $19,000 · +171% vs Sep |
| 8 | eBay | PSA 10 1st Edition Giovanni's Gyarados Holo 5/132 Gym Challenge Pokemon 2000 5/132 | +171% | $19,000 |
| September · 1 sale · median $7,000 · +13% vs Aug |
| 1 | eBay | 2000 POKEMON GYM CHALLENGE HOLO-1ST EDITION #5 GIOVANNI'S GYARADOS PSA 10 #5 | +13% | $7,000 |
| August · 1 sale · median $6,200 · +17% vs Jul |
| 13 | eBay | Pokemon Giovanni's Gyarados 1st Edition Holo Gym Challenge #5/132 PSA 10 5/132 | +17% | $6,200 |
| July · 1 sale · median $5,300 · +6% vs Jun |
| 16 | eBay | POKEMON GIOVANNI'S GYARADOS 2000 GYM CHALLENGE #5 1ST EDITION HOLO PSA 10 #5 | +6% | $5,300 |
| June · 1 sale · median $5,000 · −17% vs May |
| 8 | eBay | 2000 POKEMON GYM CHALLENGE HOLO-1ST EDITION #5 GIOVANNI'S GYARADOS PSA 10 #5 | +9% | $5,000 |
| May · 2 sales · median $6,038 · +37% vs Apr |
| 18 | Goldin | 2000 Pokemon Gym Challenge 1st Edition Holo #5 Giovanni's Gyarados - PSA GEM MT 10 [Goldin] | −39% | $4,575 |
| 4 | eBay | PSA 10 GEM MINT Giovanni's Gyarados 5/132 Gym Challenge 1ST EDITION Pokemon Card | +70% | $7,500 |
| April · 1 sale · median $4,400 · −33% vs Mar |
| 26 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | −23% | $4,400 |
| March · 3 sales · median $6,556 · +74% vs Feb |
| 29 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | −15% | $5,750 |
| 16 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | +4% | $6,788 |
| 10 | eBay | 1st Edition Giovanni’s Gyarados Holo - 5/132 - Gym Challenge Pokémon Card PSA 10 #5 | +58% | $6,556 |
| February · 2 sales · median $3,775 · +43% vs Dec |
| 23 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | +22% | $4,150 |
| 22 | eBay | 2000 POKEMON GYM CHALLENGE HOLO-1ST ED #5 GIOVANNI'S GYARADOS PSA 10 #5 | +29% | $3,399 |
| December 2025 · 1 sale · median $2,644 · +10% vs Nov |
| 17 | eBay | PSA 10 1st edition Giovanni's Gyarados - 5/132 - Gym Challenge - Pokemon | +10% | $2,644 |
| November 2025 · 1 sale · median $2,400 · +19% vs Sep |
| 29 | eBay | 2000 POKEMON GYM CHALLENGE HOLO-1ST ED #5 GIOVANNI'S GYARADOS PSA 10 #5 | +19% | $2,400 |
| September 2025 · 1 sale · median $2,024 · +6% vs Jul |
| 3 | eBay | 2000 Pokemon Gym Challenge #5 Giovanni's Gyarados Holo 1st Edition PSA 10 | +9% | $2,024 |
| July 2025 · 2 sales · median $1,916 · +20% vs May |
| 20 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | −7% | $1,850 |
| 13 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | +7% | $1,983 |
| May 2025 · 2 sales · median $1,601 · −8% vs Feb |
| 25 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | +37% | $1,851 |
| 12 | eBay | 2000 Pokemon Gym Challenge Giovanni's Gyarados Holo 1st Ed. #5 - PSA 10 GEM MT #5 | −25% | $1,350 |
| February 2025 · 3 sales · median $1,745 · +59% vs Dec |
| 19 | eBay | 2000 1st Edition Pokemon Gym Challenge 5/132 GIOVANNI'S GYARADOS Holo PSA 10 Gem 5/132 | +51% | $1,800 |
| 9 | eBay | Pokemon Cards - PSA 10 1st Edition Giovanni's Gyarados 5/132 Gym Challenge Holo | −32% | $1,196 |
| 5 | eBay | Giovanni's Gyarados 5/132 Gym Challenge 1st Edition Holo Pokemon PSA 10 GEM MINT | +59% | $1,745 |
| December 2024 · 1 sale · median $1,100 · +24% vs Oct |
| 8 | eBay | 2000 1st Edition Pokemon Gym Challenge 5/132 GIOVANNI'S GYARADOS Holo PSA 10 Gem | +24% | $1,100 |
| October 2024 · 1 sale · median $890 · −14% vs Sep |
| 2 | eBay | 2000 POKEMON GYM CHALLENGE HOLO-1ST ED #5 GIOVANNI'S GYARADOS PSA 10 | −14% | $890.00 |
| September 2024 · 1 sale · median $1,032 · +3% vs Aug |
| 30 | eBay | PSA 10 Giovanni's Gyarados Swirl 1st Edition Holo #5/132 Pokemon Gym Challenge | +3% | $1,032 |
| August 2024 · 1 sale · median $1,000 · −7% vs May |
| 31 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo PSA 10 GEM MINT #5 #5 | −7% | $999.99 |
| May 2024 · 1 sale · median $1,076 · +3% vs Apr |
| 9 | eBay | Giovanni's Gyarados 5/132 Gym Challenge 1st Edition Holo Pokemon PSA 10 GEM MINT | +2% | $1,076 |
| April 2024 · 2 sales · median $1,042 |
| 29 | eBay | Giovanni's Gyarados 5/132 Gym Challenge 1st Edition Holo Pokemon PSA 10 GEM MINT | +2% | $1,053 |
| 28 | eBay | Pokemon Giovanni's Gyarados Gym Challenge 1st Edition Holo Rare #5 PSA 10 | — | $1,030 |