diff --git a/Yesod/Form/Fields.hs b/Yesod/Form/Fields.hs
--- a/Yesod/Form/Fields.hs
+++ b/Yesod/Form/Fields.hs
@@ -233,7 +233,7 @@
     }
 
 readMay :: Read a => String -> Maybe a
-readMay s = case reads s of
+readMay s = case filter (Prelude.null . snd) $ reads s of
                 (x, _):_ -> Just x
                 [] -> Nothing
 
diff --git a/Yesod/Form/Functions.hs b/Yesod/Form/Functions.hs
--- a/Yesod/Form/Functions.hs
+++ b/Yesod/Form/Functions.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE TupleSections #-}
 {-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RecordWildCards #-}
@@ -356,15 +357,21 @@
     -> MForm m (FormResult a, WidgetT (HandlerSite m) IO ())
 
 renderTable, renderDivs, renderDivsNoLabels :: Monad m => FormRender m a
+-- | Render a form into a series of tr tags. Note that, in order to allow
+-- you to add extra rows to the table, this function does /not/ wrap up
+-- the resulting HTML in a table tag; you must do that yourself.
 renderTable aform fragment = do
     (res, views') <- aFormToForm aform
     let views = views' []
     let widget = [whamlet|
 $newline never
-\#{fragment}
-$forall view <- views
+$if null views
+    \#{fragment}
+$forall (isFirst, view) <- addIsFirst views
     <tr :fvRequired view:.required :not $ fvRequired view:.optional>
         <td>
+            $if isFirst
+                \#{fragment}
             <label for=#{fvId view}>#{fvLabel view}
             $maybe tt <- fvTooltip view
                 <div .tooltip>#{tt}
@@ -373,6 +380,9 @@
             <td .errors>#{err}
 |]
     return (res, widget)
+  where
+    addIsFirst [] = []
+    addIsFirst (x:y) = (True, x) : map (False, ) y
 
 -- | render a field inside a div
 renderDivs = renderDivsMaybeLabels True
diff --git a/yesod-form.cabal b/yesod-form.cabal
--- a/yesod-form.cabal
+++ b/yesod-form.cabal
@@ -1,5 +1,5 @@
 name:            yesod-form
-version:         1.3.11
+version:         1.3.12
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>