Fighting Dojo/Generation IV

Main article: Fighting Dojo

In the Generation IV games Pokémon HeartGold and SoulSilver, Gym Leaders can be rematched at the Fighting Dojo. To rematch a Gym Leader, the player must first register that Gym Leader's phone number in the Pokégear and have acquired all 16 Gym Badges, then call that Gym Leader during a specific time window that occurs once a week.

Phone listing

The player can only start obtaining the Gym Leaders' phone numbers after entering the Hall of Fame. Most numbers can only be obtained on a certain day of the week and/or at a certain time, and some have additional specific requirements. Most of the Gym Leaders give out their numbers personally at a location outside of their Gym; the two exceptions are Chuck and Blue, whose numbers are received from their wife and sister respectively.

The following table shows when, where, and how each Gym Leader's number can be obtained:

Johto Gym Leaders
Leader	Day	Time	Location	Requirements (post–Hall of Fame)
Falkner	Monday	Any	Celadon Department Store (4F)	Obtain the Soul Badge
Bugsy	Thursday	Any	Viridian Forest	None
Whitney	Any	12:00–4:00 PM	Goldenrod Department Store (6F)	None
Morty	Monday or Tuesday	Any	Bellchime Trail	None
Chuck	Any	Any	Cianwood City (from Chuck's wife)	None
Jasmine	Any	1:00–2:00 PM	Olivine Café	None
Pryce	Any	6:00–10:00 AM	Lake of Rage	None
Clair	Any	6:00–10:00 AM	Dragon's Den	Defeat her and Lance in the Multi Battle with Silver
Kanto Gym Leaders
Leader	Day	Time	Location	Requirements (post–Hall of Fame)
Leader	Day	Time	Location	Badges	Other
Brock	Any	12:00–3:00 PM	Diglett's Cave (Top Exit)	All 16	None
Misty	Any	4:00–6:00 PM	Cerulean Cape^[a]	All 16	None
Lt. Surge	Any	9:00–11:00 AM	Route 10 (outside the Power Plant)^[b]	All 16	Be walking with a Pikachu
Erika	Saturday or Sunday	3:00–5:00 PM	Celadon City (by the fountain)	All 16	None
Janine	Any	4:00–6:00 PM	Pokémon League Reception Gate	Soul Badge	None
Sabrina	Friday	Any	Olivine Port	Marsh Badge	None
Blaine	Tuesday	Any	Cinnabar Island	All 16	None
Blue	Any	Any	Pallet Town (from Daisy Oak)	All 16	Show Daisy a Pokémon with maximum friendship after getting at least seven Pokémon massages from her

↑ Misty will not appear while Suicune is present.
↑ Lt. Surge will not appear while Zapdos is present.

Rematch schedule

The following table shows when the Gym Leaders are free to accept a rematch. Once the player have acquired a Gym Leader's phone number and all 16 Badges, they can call a Gym Leader during their available time slot and challenges them to a rematch, they will show up to the Fighting Dojo and wait for the player. They will remain there (even after their available time slot has ended) until defeated. A Gym Leader can be defeated and then called again repeatedly within their available time slot for multiple rematches.

If the player does not have all 16 Badges they will simply be told that there are "stronger trainers out there for them to challenge" by the Gym Leader they call, even if it is the right time slot.

As midnight to 3:59 AM is considered to be "night" by the game, any Gym Leader whose available time slot is at night can be called for a rematch from either midnight to 3:59 AM or from 8:00 PM to 11:59 PM.

Phone listing

Rematch schedule

List of Gym Leaders

Falkner

Bugsy

Whitney

Morty

Chuck

Jasmine

Pryce

Clair

Brock

Misty

Lt. Surge

Erika

Janine

Sabrina

Blaine

Blue