Offensive coordinator for SUNY Geneseo, NY women’s flag football. USAFB Master Trainer.
Joined April 2013
- Tweets 451
- Following 666
- Followers 1,959
- Likes 826
56 Photos and videos
Terry Summerfield retweeted
Jun 9
NEW Tackle Legs available across the USA 🇺🇸 and Canada 🇨🇦 - contact your @RiddellSports Rep.
Great Linebacker Drills!!!🚨🚨🚨
LBU Off-Season Training!!!🔥🔥🔥
Zayd Joe Andrade C/O 2034 10 Years Old!🔥
Working on tackling using GSI Performance “Tackle Legs” and Wrap and Grip Tackle Bag! Available from @RiddellSports across the USA!🇺🇸
Trainer: @lesmaruo44 @Linebackers_U
Equipments: @RichieGrayGSI @RiddellSports
Location: Las Vegas📍
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Terry Summerfield retweeted
Jun 6
GSI Performance - Level 3 Wrap and Grip Tackle…..get to the grip-point….💥
Available from @RiddellSports across the USA 🇺🇸 and Canada 🇨🇦 #Tackle #Technique #SkillAcquisition 🏈
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Terry Summerfield retweeted
May 6
With the Smarter Sports Awards a week away, I’ve been reflecting on the journey with GSI Performance.
A lot more to come. Read my latest blog 👇
linkedin.com/pulse/changing-…
#SmarterSports #SSA26 #SportsInnovation
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Terry Summerfield retweeted
Apr 26
Tackle Technique:
- Continually rep different levels (Lev 1 - in this film…don’t forget Lev 2 & 3)
- Coach put pressure on player in Track & Prep phases
- Tackler, get around the edge & drop height
- Tackler, has to square up late
- Tackler, connect and accelerate the feet
🏈💥
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Terry Summerfield retweeted
Apr 20
A global standard for contact.
Track. Prepare. Connect. Accelerate. Finish.
The Five Fights framework, adopted by World Rugby & USA Football, is redefining how players train for contact.
#SmarterSportsAwards #FiveFights
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Terry Summerfield retweeted
Apr 27
The game has changed. The demands are higher than ever. So are the expectations around player welfare. At GSI Performance, we don’t believe in isolated fixes.
We’ve built a fully integrated system: Methodology Training Aids Analysis.
One approach. Better performance. Safer players.
#Coaching #SportsInnovation #PlayerDevelopment #SSA26
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Terry Summerfield retweeted
1 Jul 2025
Top class. Legend. Mentor and good lad.
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Terry Summerfield retweeted
28 Jun 2025
The GSI Performance - Wrap & Grip Tackle System Wrap & Roll Dip & Rise contact shield available in the USA from @RiddellSports #Tackle #Accuracy 🏈
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Terry Summerfield retweeted
27 Jun 2025
Sink to load.
Extend.
“Chase the hit” to stay in strong shape.
1) Weight room warm up with band.
2) On-field, together, timing.
3) Reverse? Either way I like the dynamic-to-stabilization idea for a little “quick to strong” and core work.
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Terry Summerfield retweeted
3 Jun 2025
Football coaches: just for fun.
Think about playing defense for 2:45 straight this close to your goal line and holding out….in a World Cup final no less.
“Defend the like like you are defending South Africa itself”
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Terry Summerfield retweeted
10 May 2025
“Pick your shot, don’t just smash the pile”
Numbers to the ball is such a talked about thing in Football but there is a key read (on the run) for 2nd man.
Where is 1? And where is the open strike zone?
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Terry Summerfield retweeted
17 Apr 2025
IIt doesn’t get much better than this — Coach Ryland is widely regarded as one of the premier tackling coaches and educators in the game today. @ADRCoachDev will be on site with hands on teaching. Pairing up with @tsummerfieldMT on the field!!
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Terry Summerfield retweeted
28 Mar 2025
New thread: Contact over the week.
Starting here as this is by far the most known/done in football.
But do notice this is #3 and we will look at other ways later
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Terry Summerfield retweeted
5 Mar 2025
GSI Performance Tackle System available in The USA 🇺🇸 @RiddellSports in both Senior and Junior sizes - now used by Teams at all levels - Schools/Youth, College and NFL 🏈#Tackle #Technique #Accuracy #Coaching #ProtectandPerform
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Terry Summerfield retweeted
11 Nov 2024
Do I have a new favorite all-time restricted one-arm?
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Terry Summerfield retweeted
8 Oct 2024
Balance in Tackle Teaching.
If you win the space & body position battle you make the rest of the job exponentially easier
But many coaches front load their teaching so much that they almost forget the back half.
You need more fixes/cues than wrap up & drive feet vs good carriers
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Terry Summerfield retweeted
12 Sep 2024
Summer learning # 3
In no particular order
Strike lines, tackle types, what you see in drills.
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Terry Summerfield retweeted
9 Sep 2024
One my favorite parts of the @RiddellSports @RichieGrayGSI bags is the depth and density lets you go full hit.
Even on a lower body tackle -which I often stand in and hold for- really reduces worry about Charlie horse and can practice the skill.
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Terry Summerfield retweeted
12 Aug 2024
Track-Back and track across are key paths I don’t think we train enough in football because we love our inside-out downhill boxes.
Playing in space and when the structure has been fractured is massive to limit damage from big plays.
⚽️ example from my guy @Coach_frankb
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Terry Summerfield retweeted
3 Aug 2024
GSI Performance - Technical Training Aids, are specifically designed to promote technical accuracy within the tackle. Now used throughout the @NFL and @NCAAFootball available from @RiddellSports #Tackle #Technique #skillacquisition #WeTrainDifferent #DNAofCollision 🏈
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