Colin Kaepernick isn’t a finished product, but if the 49ers quarterback finishes 2014 the way he’s started it he’ll turn in a one-of-a-kind season.

At the midway point, Kaepernick is on pace to have 3,912 passing yards, 24 touchdowns, 10 interceptions and 552 rushing yards. No quarterback is NFL history have ever had 3,500 passing yards, 20 touchdowns and 475 rushing yards in a season with 15 or fewer interceptions.

Kaepernick, obviously, can fall off his current pace in each category and still produce a historic (and, yes, admittedly obscure) statistical season. Despite those numbers, however, he hasn’t been immune to criticism this season. And rightly so. After all, he’s the leader of an offense that ranks 19th in yards per game, 23rd in points, last in red-zone touchdown percentage and has scored 10 points in the second half of the 49ers’ four losses.

On Wednesday, Kaepernick was told about his impressive statistical pace and asked if that was evidence that his critics were off base. Did he feel he’s having a pretty decent season?

“I feel like we’re having an average season,” he said. “We’re 4-4. That’s the only stat that matters.”

Good answer.

In his second full season as a starter, Kaepernick’s completion percentage (64.2) is up dramatically from 2013 (58.4), but his accuracy, touch and field vision still need refining. For example, regarding his accuracy, his 2nd-and-goal pass to Michael Crabtree at the end of last week’s 13-10 loss to the Rams was complete. However, a better-placed ball would have resulted in a game-winning touchdown.

In addition, Kaepernick bears at least some of the responsibility for taking the most sacks (27) of any NFL quarterback. A better pocket presence could have turned some of those takedowns into just-get-rid-of-it incompletions.

That said, Kaepernick’s numbers this season offer evidence of his unique dual-threat ability.

He could become one of three quarterbacks to have 3,500 passing yards, 20 passing touchdowns and 500 rushing yards in a season, joining Randall Cunningham (1998) and Cam Newton (2011), who threw 16 and 17 interceptions, respectively, in those seasons:

Cunningham, Eagles, 1998: 3,808 passing yards, 24 TDs, 624 rushing yards

Other stats: 53.8 completion percentage, 77.6 passer rating

Newton, Panthers, 2011: 4,051 passing yards, 21 TDs, 706 rushing yards

Other stats: 60.0 completion percentage, 84.5 passer rating

Kaepernick’s 2014 pace: 3,912 passing yards, 24 TDs, 552 rushing yards

Other stats: 64.2 completion percentage, 94.8 passer rating